{"artifacts":{"doi:10.1016/j.jallcom.2007.04.017/p3/tab-3":{"artifact":"table","caption":"Experimental and calculated invariant reactions in the Cu–Th system","label":"3","page":3}},"cite_as":{"also_cite":["the original source of every value you use (paper_citation / paper_doi, and cited_dois for values the paper cites from earlier work)"],"bibtex":"@misc{orchid_literature_2026,\n  author    = {Arr{\\'o}yave, Raymundo and Saal, James and Shin, Dongwon},\n  title     = {{ORCHID-Values: thermodynamic and phase-equilibrium values read from the literature}},\n  version   = {2026.10},\n  publisher = {Zenodo},\n  year      = {2026},\n  doi       = {10.5281/zenodo.23735569},\n  url       = {https://doi.org/10.5281/zenodo.23735569},\n  note      = {Version 1, machine-extracted}\n}","dataset":"literature","doi":"10.5281/zenodo.23735569","license":"CC-BY-4.0","part_of":{"bibtex":"@misc{orchid_data_2026,\n  author    = {Arr{\\'o}yave, Raymundo and Saal, James and Shin, Dongwon},\n  title     = {{ORCHID data: umbrella record of the ORCHID datasets}},\n  version   = {2026.10},\n  publisher = {Zenodo},\n  year      = {2026},\n  doi       = {10.5281/zenodo.23736065},\n  url       = {https://doi.org/10.5281/zenodo.23736065},\n  note      = {Version 1, machine-extracted}\n}","doi":"10.5281/zenodo.23736065","text":"R. Arróyave, J. Saal, D. Shin, ORCHID data: umbrella record of the ORCHID datasets (version 2026.10; Version 1, machine-extracted), Zenodo (2026). https://doi.org/10.5281/zenodo.23736065","title":"ORCHID data: umbrella record of the ORCHID datasets","url":"https://doi.org/10.5281/zenodo.23736065"},"release_tag":"v2026.10","status":"Version 1, machine-extracted: values were read by language-model readers constrained to quote their source and checked automatically, and the release was then audited on the printed pages by adversarial audits, an independent second review of fit-facing records and a preliminary human review of a frozen sample. Flags such as accepted and ESPEI-ready record screening results, not certification; known issues are listed in the release notes.","text":"R. Arróyave, J. Saal, D. Shin, ORCHID-Values: thermodynamic and phase-equilibrium values read from the literature (version 2026.10; Version 1, machine-extracted), Zenodo (2026). https://doi.org/10.5281/zenodo.23735569","title":"ORCHID-Values: thermodynamic and phase-equilibrium values read from the literature","url":"https://doi.org/10.5281/zenodo.23735569","version":"2026.10"},"contexts":{},"elements":["CU","TH"],"licence":"CC BY 4.0 (ORCHID data; quotes are short excerpts kept for verification, the publishers' copyright, not relicensed)","models":{"Md5295270":{"catalog_entry":{"license":"CC BY 4.0","name":"CuTh-08Wan.tdb","source_url":"https://doi.org/10.1016/j.calphad.2025.102833","tier":"bundled"},"link_basis":"reporting_paper_own_model","model_citation":"C.P. Wang, Y.F. Li, X.J. Liu, K. Ishida, J. Alloys Compd., 458, 208-13(2008).","model_doi":"10.1016/j.jallcom.2007.04.017","reproduced_by_calculation":false,"tdb":"CuTh-08Wan.tdb","tdb_path":"databases/sgte-binary/CuTh-08Wan.tdb","tdb_sha256":"8ae901d23dd6c3e4c94a96d26ebbd294a06b48367d263fe1cdb800dc8ffb9462"},"Md911ff45":{"catalog_entry":{"license":"CC BY 4.0","name":"CuTh-08Wan.tdb","source_url":"https://doi.org/10.1016/j.calphad.2025.102833","tier":"bundled"},"link_basis":"reporting_paper_own_model","model_citation":"C.P. Wang, Y.F. Li, X.J. Liu, K. Ishida, J. Alloys Compd., 458, 208-13(2008).","model_doi":"10.1016/j.jallcom.2007.04.017","reproduced_by_calculation":true,"tdb":"CuTh-08Wan.tdb","tdb_path":"databases/sgte-binary/CuTh-08Wan.tdb","tdb_sha256":"8ae901d23dd6c3e4c94a96d26ebbd294a06b48367d263fe1cdb800dc8ffb9462"}},"note":"records[].locator.ref -> artifacts; records[].model -> models (full records: orchid-literature.jsonl.gz)","papers":{"doi:10.1016/0022-5088(71)90128-7":{"authors":["R.J. Schiltz","E.R. Stevens","O.N. Carlson"],"citation":"R.J. Schiltz, E.R. Stevens, O.N. Carlson, The thorium-copper system, Journal of the Less Common Metals 25, 175-185 (1971).","container":"Journal of the Less Common Metals","doi":"10.1016/0022-5088(71)90128-7","doi_url":"https://doi.org/10.1016/0022-5088(71)90128-7","id":"doi:10.1016/0022-5088(71)90128-7","kind":"cited_work","metadata_source":"crossref","roles":["cited_source"],"source_kinds":["cited_work"],"title":"The thorium-copper system","year":1971},"doi:10.1016/j.jallcom.2007.04.017":{"authors":["C.P. Wang","Y.F. Li","X.J. Liu","K. Ishida"],"citation":"C.P. Wang, Y.F. Li, X.J. Liu, K. Ishida, Thermodynamic assessments of the Cu–Th and Mo–Th systems, Journal of Alloys and Compounds 458, 208-213 (2008).","container":"Journal of Alloys and Compounds","doi":"10.1016/j.jallcom.2007.04.017","doi_url":"https://doi.org/10.1016/j.jallcom.2007.04.017","id":"doi:10.1016/j.jallcom.2007.04.017","kind":"corpus_paper","metadata_source":"crossref","pdf_sha256_prefix":"20b0977f4d158c4c","roles":["reporting_paper"],"source_kinds":["journal_article"],"title":"Thermodynamic assessments of the Cu–Th and Mo–Th systems","year":2008}},"part":1,"parts":1,"records":[{"chemical_system":"CU-TH","cited_sources":[{"doi":"10.1016/0022-5088(71)90128-7","first_author":"Schiltz","kind":"unknown","label":"10","paper":"doi:10.1016/0022-5088(71)90128-7","reference":"R.J. Schiltz, E.R. Stevens, O.N. Carlson, J. Less-Common Met. 25 (1971) 175–185.","status":"resolved","year":"1971"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"evidence_class":"experimental","flags":{"calphad_check":"not_available","espei_certified":false,"espei_phase_rule":{"basis":"printed_labels","result":"pass"},"espei_ready":true,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":3,"fold_lso":1,"id":"ORC-55ZLXSYLKE","locator":{"ref":"doi:10.1016/j.jallcom.2007.04.017/p3/tab-3","row":1},"observation_type":"invariant_reaction","origin":{"basis":"printed_source_experimental","class":"experimental","own_work_of_paper":false},"paper":"doi:10.1016/j.jallcom.2007.04.017","paper_id":"doi:10.1016/j.jallcom.2007.04.017","phase_compositions":[{"basis":"mole_fraction (converted from atomic percent)","composition":{"TH":0.07},"composition_source":"printed","phase":"L"},{"basis":"mole_fraction (converted from atomic percent)","composition":{"CU":0.857143,"TH":0.142857},"composition_source":"stoichiometric_model_phase","phase":"Cu6Th"}],"phases":[{"label":"L","model_phase":"LIQUID"},{"label":"(Cu)","model_phase":"FCC_A1","pearson_symbol":"cF4","prototype":"Cu","structure_basis":"mapped_model_phase"},{"label":"Cu6Th","model_phase":"CU6TH","pearson_symbol":"oP28","prototype":"CeCu6","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1016/j.jallcom.2007.04.017/p3/tab-3/r01#invariant_reaction","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"L -> (Cu) + Cu6Th","type":"eutectic"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"CU-TH","system":"CU-TH","temperature_K":1208.15,"temperature_printed":"935 ± 5","temperature_uncertainty":{"basis":"printed","value":5.0},"tool_release":"v2.1.19n","transition_kind":"eutectic","transition_kind_printed":"Eutectic","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"composition":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.011,"sigma_method":{"basis":"calibrated","ci95":[0.010484,0.011532],"class":"unknown","entry":"value_types/X_PHASE/classes/unknown","floor":0.011,"floor_unit":"mole fraction","n_pairs":3014,"value":0.011},"sigma_printed":null,"sigma_reading":{"basis":"last_stored_digit","value":5e-07},"sigma_scatter":null,"unit":"mole fraction","value_type":"X_PHASE"},"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":11.0,"sigma_method":{"basis":"calibrated","ci95":[9.435209,10.483565],"class":"unknown","entry":"value_types/T_INVARIANT/classes/unknown","floor":11.0,"floor_unit":"K","n_pairs":4912,"value":11.0},"sigma_printed":{"kind":"plus_minus_coverage_not_stated","taken_as":"1 sigma","value":5.0},"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":1208.15},{"chemical_system":"CU-TH","conditions":{"kind":"not_applicable_own_calculation"},"evidence_class":"model","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":3,"fold_lso":1,"id":"ORC-T2J2BZITO7","locator":{"ref":"doi:10.1016/j.jallcom.2007.04.017/p3/tab-3","row":2},"model":"Md911ff45","observation_type":"invariant_reaction","origin":{"basis":"this_work+label_names_calculation","class":"model_value","measured_in":"doi:10.1016/j.jallcom.2007.04.017","own_work_of_paper":true},"paper":"doi:10.1016/j.jallcom.2007.04.017","paper_id":"doi:10.1016/j.jallcom.2007.04.017","phase_compositions":[{"basis":"mole_fraction (converted from atomic percent)","composition":{"TH":0.074},"composition_source":"printed","phase":"L"},{"basis":"mole_fraction (converted from atomic percent)","composition":{"CU":0.857143,"TH":0.142857},"composition_source":"stoichiometric_model_phase","phase":"Cu6Th"}],"phases":[{"label":"L","model_phase":"LIQUID"},{"label":"(Cu)","model_phase":"FCC_A1","pearson_symbol":"cF4","prototype":"Cu","structure_basis":"mapped_model_phase"},{"label":"Cu6Th","model_phase":"CU6TH","pearson_symbol":"oP28","prototype":"CeCu6","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1016/j.jallcom.2007.04.017/p3/tab-3/r02#invariant_reaction","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"L -> (Cu) + Cu6Th","type":"eutectic"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"CU-TH","system":"CU-TH","temperature_K":1206.05,"temperature_printed":"932.9","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19n","transition_kind":"eutectic","transition_kind_printed":"Eutectic","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"composition":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.005,"sigma_method":{"basis":"calibrated","ci95":[0.004448,0.004448],"class":"model_calculated","entry":"model/X_PHASE","floor":0.005,"floor_unit":"mole fraction","n_pairs":16730,"value":0.005},"sigma_printed":null,"sigma_reading":{"basis":"last_stored_digit","value":5e-07},"sigma_scatter":null,"unit":"mole fraction","value_type":"X_PHASE"},"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":4.0,"sigma_method":{"basis":"calibrated","ci95":[3.11346,4.29954],"class":"model_calculated","entry":"model/T_INVARIANT","floor":4.0,"floor_unit":"K","n_pairs":14146,"value":4.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":1206.05},{"chemical_system":"CU-TH","cited_sources":[{"doi":"10.1016/0022-5088(71)90128-7","first_author":"Schiltz","kind":"unknown","label":"10","paper":"doi:10.1016/0022-5088(71)90128-7","reference":"R.J. Schiltz, E.R. Stevens, O.N. Carlson, J. Less-Common Met. 25 (1971) 175–185.","status":"resolved","year":"1971"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"evidence_class":"experimental","flags":{"calphad_check":"not_available","espei_certified":false,"espei_phase_rule":{"basis":"printed_labels","result":"pass"},"espei_ready":true,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":3,"fold_lso":1,"id":"ORC-LI5YQBZHML","locator":{"ref":"doi:10.1016/j.jallcom.2007.04.017/p3/tab-3","row":3},"observation_type":"invariant_reaction","origin":{"basis":"printed_source_experimental","class":"experimental","own_work_of_paper":false},"paper":"doi:10.1016/j.jallcom.2007.04.017","paper_id":"doi:10.1016/j.jallcom.2007.04.017","phase_compositions":[{"basis":"mole_fraction (converted from atomic percent)","composition":{"TH":0.18},"composition_source":"printed","phase":"L"},{"basis":"mole_fraction (converted from atomic percent)","composition":{"CU":0.857143,"TH":0.142857},"composition_source":"stoichiometric_model_phase","phase":"Cu6Th"},{"basis":"mole_fraction (converted from atomic percent)","composition":{"CU":0.782609,"TH":0.217391},"composition_source":"stoichiometric_model_phase","phase":"Cu3.6Th"}],"phases":[{"label":"L","model_phase":"LIQUID"},{"label":"Cu6Th","model_phase":"CU6TH","pearson_symbol":"oP28","prototype":"CeCu6","structure_basis":"mapped_model_phase"},{"label":"Cu3.6Th","model_phase":"CU18TH5","pearson_symbol":"hP68","prototype":"Ag51Gd14","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1016/j.jallcom.2007.04.017/p3/tab-3/r03#invariant_reaction","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"L -> Cu6Th + Cu3.6Th","type":"eutectic"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"CU-TH","system":"CU-TH","temperature_K":1293.15,"temperature_printed":"1020 ± 10","temperature_uncertainty":{"basis":"printed","value":10.0},"tool_release":"v2.1.19n","transition_kind":"eutectic","transition_kind_printed":"Eutectic","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"composition":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.011,"sigma_method":{"basis":"calibrated","ci95":[0.010484,0.011532],"class":"unknown","entry":"value_types/X_PHASE/classes/unknown","floor":0.011,"floor_unit":"mole fraction","n_pairs":3014,"value":0.011},"sigma_printed":null,"sigma_reading":{"basis":"last_stored_digit","value":5e-07},"sigma_scatter":null,"unit":"mole fraction","value_type":"X_PHASE"},"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":11.0,"sigma_method":{"basis":"calibrated","ci95":[9.435209,10.483565],"class":"unknown","entry":"value_types/T_INVARIANT/classes/unknown","floor":11.0,"floor_unit":"K","n_pairs":4912,"value":11.0},"sigma_printed":{"kind":"plus_minus_coverage_not_stated","taken_as":"1 sigma","value":10.0},"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":1293.15},{"chemical_system":"CU-TH","conditions":{"kind":"not_applicable_own_calculation"},"evidence_class":"model","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":3,"fold_lso":1,"id":"ORC-6RHW52RLHM","locator":{"ref":"doi:10.1016/j.jallcom.2007.04.017/p3/tab-3","row":4},"model":"Md911ff45","observation_type":"invariant_reaction","origin":{"basis":"this_work+label_names_calculation","class":"model_value","measured_in":"doi:10.1016/j.jallcom.2007.04.017","own_work_of_paper":true},"paper":"doi:10.1016/j.jallcom.2007.04.017","paper_id":"doi:10.1016/j.jallcom.2007.04.017","phase_compositions":[{"basis":"mole_fraction (converted from atomic percent)","composition":{"TH":0.186},"composition_source":"printed","phase":"L"},{"basis":"mole_fraction (converted from atomic percent)","composition":{"CU":0.857143,"TH":0.142857},"composition_source":"stoichiometric_model_phase","phase":"Cu6Th"},{"basis":"mole_fraction (converted from atomic percent)","composition":{"CU":0.782609,"TH":0.217391},"composition_source":"stoichiometric_model_phase","phase":"Cu3.6Th"}],"phases":[{"label":"L","model_phase":"LIQUID"},{"label":"Cu6Th","model_phase":"CU6TH","pearson_symbol":"oP28","prototype":"CeCu6","structure_basis":"mapped_model_phase"},{"label":"Cu3.6Th","model_phase":"CU18TH5","pearson_symbol":"hP68","prototype":"Ag51Gd14","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1016/j.jallcom.2007.04.017/p3/tab-3/r04#invariant_reaction","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"L -> Cu6Th + Cu3.6Th","type":"eutectic"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"CU-TH","system":"CU-TH","temperature_K":1293.35,"temperature_printed":"1020.2","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19n","transition_kind":"eutectic","transition_kind_printed":"Eutectic","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"composition":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.005,"sigma_method":{"basis":"calibrated","ci95":[0.004448,0.004448],"class":"model_calculated","entry":"model/X_PHASE","floor":0.005,"floor_unit":"mole fraction","n_pairs":16730,"value":0.005},"sigma_printed":null,"sigma_reading":{"basis":"last_stored_digit","value":5e-07},"sigma_scatter":null,"unit":"mole fraction","value_type":"X_PHASE"},"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":4.0,"sigma_method":{"basis":"calibrated","ci95":[3.11346,4.29954],"class":"model_calculated","entry":"model/T_INVARIANT","floor":4.0,"floor_unit":"K","n_pairs":14146,"value":4.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":1293.35},{"chemical_system":"CU-TH","cited_sources":[{"doi":"10.1016/0022-5088(71)90128-7","first_author":"Schiltz","kind":"unknown","label":"10","paper":"doi:10.1016/0022-5088(71)90128-7","reference":"R.J. Schiltz, E.R. Stevens, O.N. Carlson, J. Less-Common Met. 25 (1971) 175–185.","status":"resolved","year":"1971"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"evidence_class":"experimental","flags":{"calphad_check":"not_available","espei_certified":false,"espei_phase_rule":{"basis":"printed_labels","result":"pass"},"espei_ready":true,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":3,"fold_lso":1,"id":"ORC-4O5YN5EQ4I","locator":{"ref":"doi:10.1016/j.jallcom.2007.04.017/p3/tab-3","row":5},"observation_type":"invariant_reaction","origin":{"basis":"printed_source_experimental","class":"experimental","own_work_of_paper":false},"paper":"doi:10.1016/j.jallcom.2007.04.017","paper_id":"doi:10.1016/j.jallcom.2007.04.017","phase_compositions":[{"basis":"mole_fraction (converted from atomic percent)","composition":{"TH":0.26},"composition_source":"printed","phase":"L"},{"basis":"mole_fraction (converted from atomic percent)","composition":{"CU":0.782609,"TH":0.217391},"composition_source":"stoichiometric_model_phase","phase":"Cu3.6Th"},{"basis":"mole_fraction (converted from atomic percent)","composition":{"CU":0.666667,"TH":0.333333},"composition_source":"stoichiometric_model_phase","phase":"Cu2Th"}],"phases":[{"label":"L","model_phase":"LIQUID"},{"label":"Cu3.6Th","model_phase":"CU18TH5","pearson_symbol":"hP68","prototype":"Ag51Gd14","structure_basis":"mapped_model_phase"},{"label":"Cu2Th","model_phase":"CU2TH_C32","pearson_symbol":"hP3","prototype":"AlB2","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1016/j.jallcom.2007.04.017/p3/tab-3/r05#invariant_reaction","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"L -> Cu3.6Th + Cu2Th","type":"eutectic"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"CU-TH","system":"CU-TH","temperature_K":1253.15,"temperature_printed":"980 ± 5","temperature_uncertainty":{"basis":"printed","value":5.0},"tool_release":"v2.1.19n","transition_kind":"eutectic","transition_kind_printed":"Eutectic","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"composition":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.011,"sigma_method":{"basis":"calibrated","ci95":[0.010484,0.011532],"class":"unknown","entry":"value_types/X_PHASE/classes/unknown","floor":0.011,"floor_unit":"mole fraction","n_pairs":3014,"value":0.011},"sigma_printed":null,"sigma_reading":{"basis":"last_stored_digit","value":5e-07},"sigma_scatter":null,"unit":"mole fraction","value_type":"X_PHASE"},"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":11.0,"sigma_method":{"basis":"calibrated","ci95":[9.435209,10.483565],"class":"unknown","entry":"value_types/T_INVARIANT/classes/unknown","floor":11.0,"floor_unit":"K","n_pairs":4912,"value":11.0},"sigma_printed":{"kind":"plus_minus_coverage_not_stated","taken_as":"1 sigma","value":5.0},"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":1253.15},{"chemical_system":"CU-TH","conditions":{"kind":"not_applicable_own_calculation"},"evidence_class":"model","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":3,"fold_lso":1,"id":"ORC-UJJVVXO5TH","locator":{"ref":"doi:10.1016/j.jallcom.2007.04.017/p3/tab-3","row":6},"model":"Md911ff45","observation_type":"invariant_reaction","origin":{"basis":"this_work+label_names_calculation","class":"model_value","measured_in":"doi:10.1016/j.jallcom.2007.04.017","own_work_of_paper":true},"paper":"doi:10.1016/j.jallcom.2007.04.017","paper_id":"doi:10.1016/j.jallcom.2007.04.017","phase_compositions":[{"basis":"mole_fraction (converted from atomic percent)","composition":{"TH":0.265},"composition_source":"printed","phase":"L"},{"basis":"mole_fraction (converted from atomic percent)","composition":{"CU":0.782609,"TH":0.217391},"composition_source":"stoichiometric_model_phase","phase":"Cu3.6Th"},{"basis":"mole_fraction (converted from atomic percent)","composition":{"CU":0.666667,"TH":0.333333},"composition_source":"stoichiometric_model_phase","phase":"Cu2Th"}],"phases":[{"label":"L","model_phase":"LIQUID"},{"label":"Cu3.6Th","model_phase":"CU18TH5","pearson_symbol":"hP68","prototype":"Ag51Gd14","structure_basis":"mapped_model_phase"},{"label":"Cu2Th","model_phase":"CU2TH_C32","pearson_symbol":"hP3","prototype":"AlB2","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1016/j.jallcom.2007.04.017/p3/tab-3/r06#invariant_reaction","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"L -> Cu3.6Th + Cu2Th","type":"eutectic"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"CU-TH","system":"CU-TH","temperature_K":1257.75,"temperature_printed":"984.6","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19n","transition_kind":"eutectic","transition_kind_printed":"Eutectic","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"composition":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.005,"sigma_method":{"basis":"calibrated","ci95":[0.004448,0.004448],"class":"model_calculated","entry":"model/X_PHASE","floor":0.005,"floor_unit":"mole fraction","n_pairs":16730,"value":0.005},"sigma_printed":null,"sigma_reading":{"basis":"last_stored_digit","value":5e-07},"sigma_scatter":null,"unit":"mole fraction","value_type":"X_PHASE"},"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":4.0,"sigma_method":{"basis":"calibrated","ci95":[3.11346,4.29954],"class":"model_calculated","entry":"model/T_INVARIANT","floor":4.0,"floor_unit":"K","n_pairs":14146,"value":4.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":1257.75},{"chemical_system":"CU-TH","cited_sources":[{"doi":"10.1016/0022-5088(71)90128-7","first_author":"Schiltz","kind":"unknown","label":"10","paper":"doi:10.1016/0022-5088(71)90128-7","reference":"R.J. Schiltz, E.R. Stevens, O.N. Carlson, J. Less-Common Met. 25 (1971) 175–185.","status":"resolved","year":"1971"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"evidence_class":"experimental","flags":{"calphad_check":"not_available","espei_certified":false,"espei_phase_rule":{"basis":"printed_labels","result":"pass"},"espei_ready":true,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":3,"fold_lso":1,"id":"ORC-WEUO74BUUC","locator":{"ref":"doi:10.1016/j.jallcom.2007.04.017/p3/tab-3","row":7},"observation_type":"invariant_reaction","origin":{"basis":"printed_source_experimental","class":"experimental","own_work_of_paper":false},"paper":"doi:10.1016/j.jallcom.2007.04.017","paper_id":"doi:10.1016/j.jallcom.2007.04.017","phase_compositions":[{"basis":"mole_fraction (converted from atomic percent)","composition":{"TH":0.49},"composition_source":"printed","phase":"L"},{"basis":"mole_fraction (converted from atomic percent)","composition":{"CU":0.666667,"TH":0.333333},"composition_source":"stoichiometric_model_phase","phase":"Cu2Th"},{"basis":"mole_fraction (converted from atomic percent)","composition":{"CU":0.333333,"TH":0.666667},"composition_source":"stoichiometric_model_phase","phase":"CuTh2"}],"phases":[{"label":"L","model_phase":"LIQUID"},{"label":"Cu2Th","model_phase":"CU2TH_C32","pearson_symbol":"hP3","prototype":"AlB2","structure_basis":"mapped_model_phase"},{"label":"CuTh2","model_phase":"CUTH2_C16","pearson_symbol":"tI12","prototype":"Al2Cu","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1016/j.jallcom.2007.04.017/p3/tab-3/r07#invariant_reaction","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"L -> Cu2Th + CuTh2","type":"eutectic"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"CU-TH","system":"CU-TH","temperature_K":1153.15,"temperature_printed":"880 ± 5","temperature_uncertainty":{"basis":"printed","value":5.0},"tool_release":"v2.1.19n","transition_kind":"eutectic","transition_kind_printed":"Eutectic","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"composition":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.011,"sigma_method":{"basis":"calibrated","ci95":[0.010484,0.011532],"class":"unknown","entry":"value_types/X_PHASE/classes/unknown","floor":0.011,"floor_unit":"mole fraction","n_pairs":3014,"value":0.011},"sigma_printed":null,"sigma_reading":{"basis":"last_stored_digit","value":5e-07},"sigma_scatter":null,"unit":"mole fraction","value_type":"X_PHASE"},"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":11.0,"sigma_method":{"basis":"calibrated","ci95":[9.435209,10.483565],"class":"unknown","entry":"value_types/T_INVARIANT/classes/unknown","floor":11.0,"floor_unit":"K","n_pairs":4912,"value":11.0},"sigma_printed":{"kind":"plus_minus_coverage_not_stated","taken_as":"1 sigma","value":5.0},"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":1153.15},{"chemical_system":"CU-TH","conditions":{"kind":"not_applicable_own_calculation"},"evidence_class":"model","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":3,"fold_lso":1,"id":"ORC-WGO3JXRSMK","locator":{"ref":"doi:10.1016/j.jallcom.2007.04.017/p3/tab-3","row":8},"model":"Md911ff45","observation_type":"invariant_reaction","origin":{"basis":"this_work+label_names_calculation","class":"model_value","measured_in":"doi:10.1016/j.jallcom.2007.04.017","own_work_of_paper":true},"paper":"doi:10.1016/j.jallcom.2007.04.017","paper_id":"doi:10.1016/j.jallcom.2007.04.017","phase_compositions":[{"basis":"mole_fraction (converted from atomic percent)","composition":{"TH":0.488},"composition_source":"printed","phase":"L"},{"basis":"mole_fraction (converted from atomic percent)","composition":{"CU":0.666667,"TH":0.333333},"composition_source":"stoichiometric_model_phase","phase":"Cu2Th"},{"basis":"mole_fraction (converted from atomic percent)","composition":{"CU":0.333333,"TH":0.666667},"composition_source":"stoichiometric_model_phase","phase":"CuTh2"}],"phases":[{"label":"L","model_phase":"LIQUID"},{"label":"Cu2Th","model_phase":"CU2TH_C32","pearson_symbol":"hP3","prototype":"AlB2","structure_basis":"mapped_model_phase"},{"label":"CuTh2","model_phase":"CUTH2_C16","pearson_symbol":"tI12","prototype":"Al2Cu","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1016/j.jallcom.2007.04.017/p3/tab-3/r08#invariant_reaction","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"L -> Cu2Th + CuTh2","type":"eutectic"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"CU-TH","system":"CU-TH","temperature_K":1157.75,"temperature_printed":"884.6","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19n","transition_kind":"eutectic","transition_kind_printed":"Eutectic","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"composition":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.005,"sigma_method":{"basis":"calibrated","ci95":[0.004448,0.004448],"class":"model_calculated","entry":"model/X_PHASE","floor":0.005,"floor_unit":"mole fraction","n_pairs":16730,"value":0.005},"sigma_printed":null,"sigma_reading":{"basis":"last_stored_digit","value":5e-07},"sigma_scatter":null,"unit":"mole fraction","value_type":"X_PHASE"},"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":4.0,"sigma_method":{"basis":"calibrated","ci95":[3.11346,4.29954],"class":"model_calculated","entry":"model/T_INVARIANT","floor":4.0,"floor_unit":"K","n_pairs":14146,"value":4.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":1157.75},{"chemical_system":"CU-TH","cited_sources":[{"doi":"10.1016/0022-5088(71)90128-7","first_author":"Schiltz","kind":"unknown","label":"10","paper":"doi:10.1016/0022-5088(71)90128-7","reference":"R.J. Schiltz, E.R. Stevens, O.N. Carlson, J. Less-Common Met. 25 (1971) 175–185.","status":"resolved","year":"1971"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"evidence_class":"experimental","flags":{"calphad_check":"not_available","espei_certified":false,"espei_phase_rule":{"basis":"printed_labels","result":"pass"},"espei_ready":true,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":3,"fold_lso":1,"id":"ORC-UV76NRLPDL","locator":{"ref":"doi:10.1016/j.jallcom.2007.04.017/p3/tab-3","row":9},"observation_type":"invariant_reaction","origin":{"basis":"printed_source_experimental","class":"experimental","own_work_of_paper":false},"paper":"doi:10.1016/j.jallcom.2007.04.017","paper_id":"doi:10.1016/j.jallcom.2007.04.017","phase_compositions":[{"basis":"mole_fraction (converted from atomic percent)","composition":{"TH":0.7},"composition_source":"printed","phase":"L"},{"basis":"mole_fraction (converted from atomic percent)","composition":{"CU":0.333333,"TH":0.666667},"composition_source":"stoichiometric_model_phase","phase":"CuTh2"}],"phases":[{"label":"L","model_phase":"LIQUID"},{"label":"CuTh2","model_phase":"CUTH2_C16","pearson_symbol":"tI12","prototype":"Al2Cu","structure_basis":"mapped_model_phase"},{"label":"(αTh)","model_phase":"FCC_A1","pearson_symbol":"cF4","prototype":"Cu","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1016/j.jallcom.2007.04.017/p3/tab-3/r09#invariant_reaction","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"L -> CuTh2 + (αTh)","type":"eutectic"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"CU-TH","system":"CU-TH","temperature_K":1273.15,"temperature_printed":"1000 ± 5","temperature_uncertainty":{"basis":"printed","value":5.0},"tool_release":"v2.1.19n","transition_kind":"eutectic","transition_kind_printed":"Eutectic","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"composition":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.011,"sigma_method":{"basis":"calibrated","ci95":[0.010484,0.011532],"class":"unknown","entry":"value_types/X_PHASE/classes/unknown","floor":0.011,"floor_unit":"mole fraction","n_pairs":3014,"value":0.011},"sigma_printed":null,"sigma_reading":{"basis":"last_stored_digit","value":5e-07},"sigma_scatter":null,"unit":"mole fraction","value_type":"X_PHASE"},"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":11.0,"sigma_method":{"basis":"calibrated","ci95":[9.435209,10.483565],"class":"unknown","entry":"value_types/T_INVARIANT/classes/unknown","floor":11.0,"floor_unit":"K","n_pairs":4912,"value":11.0},"sigma_printed":{"kind":"plus_minus_coverage_not_stated","taken_as":"1 sigma","value":5.0},"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":1273.15},{"chemical_system":"CU-TH","conditions":{"kind":"not_applicable_own_calculation"},"evidence_class":"model","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":3,"fold_lso":1,"id":"ORC-6JQQDSVT3P","locator":{"ref":"doi:10.1016/j.jallcom.2007.04.017/p3/tab-3","row":10},"model":"Md911ff45","observation_type":"invariant_reaction","origin":{"basis":"this_work+label_names_calculation","class":"model_value","measured_in":"doi:10.1016/j.jallcom.2007.04.017","own_work_of_paper":true},"paper":"doi:10.1016/j.jallcom.2007.04.017","paper_id":"doi:10.1016/j.jallcom.2007.04.017","phase_compositions":[{"basis":"mole_fraction (converted from atomic percent)","composition":{"TH":0.702},"composition_source":"printed","phase":"L"},{"basis":"mole_fraction (converted from atomic percent)","composition":{"CU":0.333333,"TH":0.666667},"composition_source":"stoichiometric_model_phase","phase":"CuTh2"}],"phases":[{"label":"L","model_phase":"LIQUID"},{"label":"CuTh2","model_phase":"CUTH2_C16","pearson_symbol":"tI12","prototype":"Al2Cu","structure_basis":"mapped_model_phase"},{"label":"(αTh)","model_phase":"FCC_A1","pearson_symbol":"cF4","prototype":"Cu","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1016/j.jallcom.2007.04.017/p3/tab-3/r10#invariant_reaction","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"L -> CuTh2 + (αTh)","type":"eutectic"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"CU-TH","system":"CU-TH","temperature_K":1275.05,"temperature_printed":"1001.9","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19n","transition_kind":"eutectic","transition_kind_printed":"Eutectic","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"composition":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.005,"sigma_method":{"basis":"calibrated","ci95":[0.004448,0.004448],"class":"model_calculated","entry":"model/X_PHASE","floor":0.005,"floor_unit":"mole fraction","n_pairs":16730,"value":0.005},"sigma_printed":null,"sigma_reading":{"basis":"last_stored_digit","value":5e-07},"sigma_scatter":null,"unit":"mole fraction","value_type":"X_PHASE"},"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":4.0,"sigma_method":{"basis":"calibrated","ci95":[3.11346,4.29954],"class":"model_calculated","entry":"model/T_INVARIANT","floor":4.0,"floor_unit":"K","n_pairs":14146,"value":4.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":1275.05},{"chemical_system":"CU-TH","cited_sources":[{"doi":"10.1016/0022-5088(71)90128-7","first_author":"Schiltz","kind":"unknown","label":"10","paper":"doi:10.1016/0022-5088(71)90128-7","reference":"R.J. Schiltz, E.R. Stevens, O.N. Carlson, J. Less-Common Met. 25 (1971) 175–185.","status":"resolved","year":"1971"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"evidence_class":"experimental","flags":{"calphad_check":"not_available","espei_certified":false,"espei_phase_rule":{"basis":"printed_labels","result":"pass"},"espei_ready":true,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":3,"fold_lso":1,"id":"ORC-UCX55U43L2","locator":{"ref":"doi:10.1016/j.jallcom.2007.04.017/p3/tab-3","row":11},"observation_type":"invariant_reaction","origin":{"basis":"printed_source_experimental","class":"experimental","own_work_of_paper":false},"paper":"doi:10.1016/j.jallcom.2007.04.017","paper_id":"doi:10.1016/j.jallcom.2007.04.017","phase_compositions":[{"basis":"mole_fraction (converted from atomic percent)","composition":{"TH":0.1429},"composition_source":"printed","phase":"L"},{"basis":"mole_fraction (converted from atomic percent)","composition":{"CU":0.857143,"TH":0.142857},"composition_source":"stoichiometric_model_phase","phase":"Cu6Th"}],"phases":[{"label":"L","model_phase":"LIQUID"},{"label":"Cu6Th","model_phase":"CU6TH","pearson_symbol":"oP28","prototype":"CeCu6","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1016/j.jallcom.2007.04.017/p3/tab-3/r11#invariant_reaction","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"L -> Cu6Th","type":"congruent melting"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"CU-TH","system":"CU-TH","temperature_K":1328.15,"temperature_printed":"~1055 ± 5","temperature_uncertainty":{"basis":"printed","value":5.0},"tool_release":"v2.1.19n","transition_kind":"congruent melting","transition_kind_printed":"Congruent","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"composition":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.011,"sigma_method":{"basis":"calibrated","ci95":[0.010484,0.011532],"class":"unknown","entry":"value_types/X_PHASE/classes/unknown","floor":0.011,"floor_unit":"mole fraction","n_pairs":3014,"value":0.011},"sigma_printed":null,"sigma_reading":{"basis":"last_stored_digit","value":5e-07},"sigma_scatter":null,"unit":"mole fraction","value_type":"X_PHASE"},"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":11.0,"sigma_method":{"basis":"calibrated","ci95":[9.435209,10.483565],"class":"unknown","entry":"value_types/T_INVARIANT/classes/unknown","floor":11.0,"floor_unit":"K","n_pairs":4912,"value":11.0},"sigma_printed":{"kind":"plus_minus_coverage_not_stated","taken_as":"1 sigma","value":5.0},"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":1328.15},{"chemical_system":"CU-TH","conditions":{"kind":"not_applicable_own_calculation"},"evidence_class":"model","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":3,"fold_lso":1,"id":"ORC-FN3GW7C4P7","locator":{"ref":"doi:10.1016/j.jallcom.2007.04.017/p3/tab-3","row":12},"model":"Md5295270","observation_type":"invariant_reaction","origin":{"basis":"this_work+label_names_calculation","class":"model_value","measured_in":"doi:10.1016/j.jallcom.2007.04.017","own_work_of_paper":true},"paper":"doi:10.1016/j.jallcom.2007.04.017","paper_id":"doi:10.1016/j.jallcom.2007.04.017","phase_compositions":[{"basis":"mole_fraction (converted from atomic percent)","composition":{"TH":0.1429},"composition_source":"printed","phase":"L"},{"basis":"mole_fraction (converted from atomic percent)","composition":{"CU":0.857143,"TH":0.142857},"composition_source":"stoichiometric_model_phase","phase":"Cu6Th"}],"phases":[{"label":"L","model_phase":"LIQUID"},{"label":"Cu6Th","model_phase":"CU6TH","pearson_symbol":"oP28","prototype":"CeCu6","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1016/j.jallcom.2007.04.017/p3/tab-3/r12#invariant_reaction","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"L -> Cu6Th","type":"congruent melting"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"CU-TH","system":"CU-TH","temperature_K":1327.75,"temperature_printed":"1054.6","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19n","transition_kind":"congruent melting","transition_kind_printed":"Congruent","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"composition":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.005,"sigma_method":{"basis":"calibrated","ci95":[0.004448,0.004448],"class":"model_calculated","entry":"model/X_PHASE","floor":0.005,"floor_unit":"mole fraction","n_pairs":16730,"value":0.005},"sigma_printed":null,"sigma_reading":{"basis":"last_stored_digit","value":5e-07},"sigma_scatter":null,"unit":"mole fraction","value_type":"X_PHASE"},"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":4.0,"sigma_method":{"basis":"calibrated","ci95":[3.11346,4.29954],"class":"model_calculated","entry":"model/T_INVARIANT","floor":4.0,"floor_unit":"K","n_pairs":14146,"value":4.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":1327.75},{"chemical_system":"CU-TH","cited_sources":[{"doi":"10.1016/0022-5088(71)90128-7","first_author":"Schiltz","kind":"unknown","label":"10","paper":"doi:10.1016/0022-5088(71)90128-7","reference":"R.J. Schiltz, E.R. Stevens, O.N. Carlson, J. Less-Common Met. 25 (1971) 175–185.","status":"resolved","year":"1971"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"evidence_class":"experimental","flags":{"calphad_check":"not_available","espei_certified":false,"espei_phase_rule":{"basis":"printed_labels","result":"pass"},"espei_ready":true,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":3,"fold_lso":1,"id":"ORC-XJMVF7XKTJ","locator":{"ref":"doi:10.1016/j.jallcom.2007.04.017/p3/tab-3","row":13},"observation_type":"invariant_reaction","origin":{"basis":"printed_source_experimental","class":"experimental","own_work_of_paper":false},"paper":"doi:10.1016/j.jallcom.2007.04.017","paper_id":"doi:10.1016/j.jallcom.2007.04.017","phase_compositions":[{"basis":"mole_fraction (converted from atomic percent)","composition":{"TH":0.2174},"composition_source":"printed","phase":"L"},{"basis":"mole_fraction (converted from atomic percent)","composition":{"CU":0.782609,"TH":0.217391},"composition_source":"stoichiometric_model_phase","phase":"Cu3.6Th"}],"phases":[{"label":"L","model_phase":"LIQUID"},{"label":"Cu3.6Th","model_phase":"CU18TH5","pearson_symbol":"hP68","prototype":"Ag51Gd14","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1016/j.jallcom.2007.04.017/p3/tab-3/r13#invariant_reaction","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"L -> Cu3.6Th","type":"congruent melting"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"CU-TH","system":"CU-TH","temperature_K":1325.15,"temperature_printed":"1052 ± 5","temperature_uncertainty":{"basis":"printed","value":5.0},"tool_release":"v2.1.19n","transition_kind":"congruent melting","transition_kind_printed":"Congruent","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"composition":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.011,"sigma_method":{"basis":"calibrated","ci95":[0.010484,0.011532],"class":"unknown","entry":"value_types/X_PHASE/classes/unknown","floor":0.011,"floor_unit":"mole fraction","n_pairs":3014,"value":0.011},"sigma_printed":null,"sigma_reading":{"basis":"last_stored_digit","value":5e-07},"sigma_scatter":null,"unit":"mole fraction","value_type":"X_PHASE"},"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":11.0,"sigma_method":{"basis":"calibrated","ci95":[9.435209,10.483565],"class":"unknown","entry":"value_types/T_INVARIANT/classes/unknown","floor":11.0,"floor_unit":"K","n_pairs":4912,"value":11.0},"sigma_printed":{"kind":"plus_minus_coverage_not_stated","taken_as":"1 sigma","value":5.0},"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":1325.15},{"chemical_system":"CU-TH","conditions":{"kind":"not_applicable_own_calculation"},"evidence_class":"model","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":3,"fold_lso":1,"id":"ORC-VKQJA4XHWH","locator":{"ref":"doi:10.1016/j.jallcom.2007.04.017/p3/tab-3","row":14},"model":"Md5295270","observation_type":"invariant_reaction","origin":{"basis":"this_work+label_names_calculation","class":"model_value","measured_in":"doi:10.1016/j.jallcom.2007.04.017","own_work_of_paper":true},"paper":"doi:10.1016/j.jallcom.2007.04.017","paper_id":"doi:10.1016/j.jallcom.2007.04.017","phase_compositions":[{"basis":"mole_fraction (converted from atomic percent)","composition":{"TH":0.2174},"composition_source":"printed","phase":"L"},{"basis":"mole_fraction (converted from atomic percent)","composition":{"CU":0.782609,"TH":0.217391},"composition_source":"stoichiometric_model_phase","phase":"Cu3.6Th"}],"phases":[{"label":"L","model_phase":"LIQUID"},{"label":"Cu3.6Th","model_phase":"CU18TH5","pearson_symbol":"hP68","prototype":"Ag51Gd14","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1016/j.jallcom.2007.04.017/p3/tab-3/r14#invariant_reaction","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"L -> Cu3.6Th","type":"congruent melting"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"CU-TH","system":"CU-TH","temperature_K":1325.05,"temperature_printed":"1051.9","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19n","transition_kind":"congruent melting","transition_kind_printed":"Congruent","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"composition":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.005,"sigma_method":{"basis":"calibrated","ci95":[0.004448,0.004448],"class":"model_calculated","entry":"model/X_PHASE","floor":0.005,"floor_unit":"mole fraction","n_pairs":16730,"value":0.005},"sigma_printed":null,"sigma_reading":{"basis":"last_stored_digit","value":5e-07},"sigma_scatter":null,"unit":"mole fraction","value_type":"X_PHASE"},"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":4.0,"sigma_method":{"basis":"calibrated","ci95":[3.11346,4.29954],"class":"model_calculated","entry":"model/T_INVARIANT","floor":4.0,"floor_unit":"K","n_pairs":14146,"value":4.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":1325.05},{"chemical_system":"CU-TH","cited_sources":[{"doi":"10.1016/0022-5088(71)90128-7","first_author":"Schiltz","kind":"unknown","label":"10","paper":"doi:10.1016/0022-5088(71)90128-7","reference":"R.J. Schiltz, E.R. Stevens, O.N. Carlson, J. Less-Common Met. 25 (1971) 175–185.","status":"resolved","year":"1971"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"evidence_class":"experimental","flags":{"calphad_check":"not_available","espei_certified":false,"espei_phase_rule":{"basis":"printed_labels","result":"pass"},"espei_ready":true,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":3,"fold_lso":1,"id":"ORC-HJJ72KHFXD","locator":{"ref":"doi:10.1016/j.jallcom.2007.04.017/p3/tab-3","row":15},"observation_type":"invariant_reaction","origin":{"basis":"printed_source_experimental","class":"experimental","own_work_of_paper":false},"paper":"doi:10.1016/j.jallcom.2007.04.017","paper_id":"doi:10.1016/j.jallcom.2007.04.017","phase_compositions":[{"basis":"mole_fraction (converted from atomic percent)","composition":{"TH":0.3333},"composition_source":"printed","phase":"L"},{"basis":"mole_fraction (converted from atomic percent)","composition":{"CU":0.666667,"TH":0.333333},"composition_source":"stoichiometric_model_phase","phase":"Cu2Th"}],"phases":[{"label":"L","model_phase":"LIQUID"},{"label":"Cu2Th","model_phase":"CU2TH_C32","pearson_symbol":"hP3","prototype":"AlB2","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1016/j.jallcom.2007.04.017/p3/tab-3/r15#invariant_reaction","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"L -> Cu2Th","type":"congruent melting"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"CU-TH","system":"CU-TH","temperature_K":1288.15,"temperature_printed":"1015 ± 5","temperature_uncertainty":{"basis":"printed","value":5.0},"tool_release":"v2.1.19n","transition_kind":"congruent melting","transition_kind_printed":"Congruent","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"composition":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.011,"sigma_method":{"basis":"calibrated","ci95":[0.010484,0.011532],"class":"unknown","entry":"value_types/X_PHASE/classes/unknown","floor":0.011,"floor_unit":"mole fraction","n_pairs":3014,"value":0.011},"sigma_printed":null,"sigma_reading":{"basis":"last_stored_digit","value":5e-07},"sigma_scatter":null,"unit":"mole fraction","value_type":"X_PHASE"},"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":11.0,"sigma_method":{"basis":"calibrated","ci95":[9.435209,10.483565],"class":"unknown","entry":"value_types/T_INVARIANT/classes/unknown","floor":11.0,"floor_unit":"K","n_pairs":4912,"value":11.0},"sigma_printed":{"kind":"plus_minus_coverage_not_stated","taken_as":"1 sigma","value":5.0},"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":1288.15},{"chemical_system":"CU-TH","conditions":{"kind":"not_applicable_own_calculation"},"evidence_class":"model","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":3,"fold_lso":1,"id":"ORC-S5XSFX6YAS","locator":{"ref":"doi:10.1016/j.jallcom.2007.04.017/p3/tab-3","row":16},"model":"Md5295270","observation_type":"invariant_reaction","origin":{"basis":"this_work+label_names_calculation","class":"model_value","measured_in":"doi:10.1016/j.jallcom.2007.04.017","own_work_of_paper":true},"paper":"doi:10.1016/j.jallcom.2007.04.017","paper_id":"doi:10.1016/j.jallcom.2007.04.017","phase_compositions":[{"basis":"mole_fraction (converted from atomic percent)","composition":{"TH":0.3333},"composition_source":"printed","phase":"L"},{"basis":"mole_fraction (converted from atomic percent)","composition":{"CU":0.666667,"TH":0.333333},"composition_source":"stoichiometric_model_phase","phase":"Cu2Th"}],"phases":[{"label":"L","model_phase":"LIQUID"},{"label":"Cu2Th","model_phase":"CU2TH_C32","pearson_symbol":"hP3","prototype":"AlB2","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1016/j.jallcom.2007.04.017/p3/tab-3/r16#invariant_reaction","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"L -> Cu2Th","type":"congruent melting"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"CU-TH","system":"CU-TH","temperature_K":1288.15,"temperature_printed":"1015.0","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19n","transition_kind":"congruent melting","transition_kind_printed":"Congruent","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"composition":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.005,"sigma_method":{"basis":"calibrated","ci95":[0.004448,0.004448],"class":"model_calculated","entry":"model/X_PHASE","floor":0.005,"floor_unit":"mole fraction","n_pairs":16730,"value":0.005},"sigma_printed":null,"sigma_reading":{"basis":"last_stored_digit","value":5e-07},"sigma_scatter":null,"unit":"mole fraction","value_type":"X_PHASE"},"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":4.0,"sigma_method":{"basis":"calibrated","ci95":[3.11346,4.29954],"class":"model_calculated","entry":"model/T_INVARIANT","floor":4.0,"floor_unit":"K","n_pairs":14146,"value":4.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":1288.15},{"chemical_system":"CU-TH","cited_sources":[{"doi":"10.1016/0022-5088(71)90128-7","first_author":"Schiltz","kind":"unknown","label":"10","paper":"doi:10.1016/0022-5088(71)90128-7","reference":"R.J. Schiltz, E.R. Stevens, O.N. Carlson, J. Less-Common Met. 25 (1971) 175–185.","status":"resolved","year":"1971"}],"conditions":{"kind":"cited_source","note":"conditions in the cited source"},"evidence_class":"experimental","flags":{"calphad_check":"not_available","espei_certified":false,"espei_phase_rule":{"basis":"printed_labels","result":"pass"},"espei_ready":true,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":3,"fold_lso":1,"id":"ORC-JAOEBNECMQ","locator":{"ref":"doi:10.1016/j.jallcom.2007.04.017/p3/tab-3","row":17},"observation_type":"invariant_reaction","origin":{"basis":"printed_source_experimental","class":"experimental","own_work_of_paper":false},"paper":"doi:10.1016/j.jallcom.2007.04.017","paper_id":"doi:10.1016/j.jallcom.2007.04.017","phase_compositions":[{"basis":"mole_fraction (converted from atomic percent)","composition":{"TH":0.6667},"composition_source":"printed","phase":"L"},{"basis":"mole_fraction (converted from atomic percent)","composition":{"CU":0.333333,"TH":0.666667},"composition_source":"stoichiometric_model_phase","phase":"CuTh2"}],"phases":[{"label":"L","model_phase":"LIQUID"},{"label":"CuTh2","model_phase":"CUTH2_C16","pearson_symbol":"tI12","prototype":"Al2Cu","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1016/j.jallcom.2007.04.017/p3/tab-3/r17#invariant_reaction","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"L -> CuTh2","type":"congruent melting"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"CU-TH","system":"CU-TH","temperature_K":1280.15,"temperature_printed":"1007 ± 5","temperature_uncertainty":{"basis":"printed","value":5.0},"tool_release":"v2.1.19n","transition_kind":"congruent melting","transition_kind_printed":"Congruent","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"composition":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.011,"sigma_method":{"basis":"calibrated","ci95":[0.010484,0.011532],"class":"unknown","entry":"value_types/X_PHASE/classes/unknown","floor":0.011,"floor_unit":"mole fraction","n_pairs":3014,"value":0.011},"sigma_printed":null,"sigma_reading":{"basis":"last_stored_digit","value":5e-07},"sigma_scatter":null,"unit":"mole fraction","value_type":"X_PHASE"},"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":11.0,"sigma_method":{"basis":"calibrated","ci95":[9.435209,10.483565],"class":"unknown","entry":"value_types/T_INVARIANT/classes/unknown","floor":11.0,"floor_unit":"K","n_pairs":4912,"value":11.0},"sigma_printed":{"kind":"plus_minus_coverage_not_stated","taken_as":"1 sigma","value":5.0},"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":1280.15},{"chemical_system":"CU-TH","conditions":{"kind":"not_applicable_own_calculation"},"evidence_class":"model","flags":{"calphad_check":"not_available","espei_certified":false,"espei_ready":false,"extraction_accepted":true,"review_state":"extracted","row_state":"settled","state_fully_specified":true},"fold_lpo":3,"fold_lso":1,"id":"ORC-QJXZ3NXSKL","locator":{"ref":"doi:10.1016/j.jallcom.2007.04.017/p3/tab-3","row":18},"model":"Md5295270","observation_type":"invariant_reaction","origin":{"basis":"this_work+label_names_calculation","class":"model_value","measured_in":"doi:10.1016/j.jallcom.2007.04.017","own_work_of_paper":true},"paper":"doi:10.1016/j.jallcom.2007.04.017","paper_id":"doi:10.1016/j.jallcom.2007.04.017","phase_compositions":[{"basis":"mole_fraction (converted from atomic percent)","composition":{"TH":0.6667},"composition_source":"printed","phase":"L"},{"basis":"mole_fraction (converted from atomic percent)","composition":{"CU":0.333333,"TH":0.666667},"composition_source":"stoichiometric_model_phase","phase":"CuTh2"}],"phases":[{"label":"L","model_phase":"LIQUID"},{"label":"CuTh2","model_phase":"CUTH2_C16","pearson_symbol":"tI12","prototype":"Al2Cu","structure_basis":"mapped_model_phase"}],"pid":"doi:10.1016/j.jallcom.2007.04.017/p3/tab-3/r18#invariant_reaction","pressure_Pa":101325,"pressure_basis":"assumed_default_1_atm_not_printed","pressure_basis_stored":"stated_default_1_atm","property":"INVARIANT_TEMPERATURE","property_group":"invariant reaction","reaction":{"printed":"L -> CuTh2","type":"congruent melting"},"reader_agreement":"multi_reader","reader_agreement_basis":"derived_from_readers","reader_agreement_label":"confirmed (two or more readers)","reader_tier":"preliminary_flash+claude","readers":["claude-opus-5.5","gemini-3.8-flash","text_layer"],"record_kind":"invariant_table","source_system":"CU-TH","system":"CU-TH","temperature_K":1277.95,"temperature_printed":"1004.8","temperature_uncertainty":{"basis":"stated_default","value":2.0},"tool_release":"v2.1.19n","transition_kind":"congruent melting","transition_kind_printed":"Congruent","uncertainty_budget":{"calibration":"orchid-uncertainty-calibration 2026-10-24 (audit round 2) sha256 6a2b5a92b0ec","quantities":{"composition":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":0.005,"sigma_method":{"basis":"calibrated","ci95":[0.004448,0.004448],"class":"model_calculated","entry":"model/X_PHASE","floor":0.005,"floor_unit":"mole fraction","n_pairs":16730,"value":0.005},"sigma_printed":null,"sigma_reading":{"basis":"last_stored_digit","value":5e-07},"sigma_scatter":null,"unit":"mole fraction","value_type":"X_PHASE"},"value":{"sigma_composition":null,"sigma_conversion":null,"sigma_effective":4.0,"sigma_method":{"basis":"calibrated","ci95":[3.11346,4.29954],"class":"model_calculated","entry":"model/T_INVARIANT","floor":4.0,"floor_unit":"K","n_pairs":14146,"value":4.0},"sigma_printed":null,"sigma_reading":{"basis":"last_printed_digit","value":0.005},"sigma_scatter":null,"unit":"K","value_type":"T_INVARIANT"}},"sigma_rule":"max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter)"},"unit":"K","value":1277.95}],"release":"orchid-literature 2026-10-23 (record store db-v2.1: invariant/general v2.1.19r, text+context fixup-20261022)","system":"CU-TH"}