{
  "counts": {
    "above_hull": 13,
    "entries": 70,
    "intervals": 3,
    "vertices": 4
  },
  "elements": [
    "AL",
    "PU"
  ],
  "flags": [
    "has_intermediate_compounds",
    "mp_agreement_not_comparable"
  ],
  "isotherms": [
    {
      "intervals": [
        {
          "intercept": 0.0,
          "kind": "two_phase",
          "left": {
            "phase": "oqmd-ref-Al",
            "x": 0.0
          },
          "mu_a_rel": 0.0,
          "mu_b_rel": -1.2545477999999999,
          "right": {
            "phase": "oqmd-10572",
            "x": 0.2
          },
          "slope": -1.2545477999999999,
          "x_hi": 0.2,
          "x_lo": 0.0
        },
        {
          "intercept": -0.09797756500000038,
          "kind": "two_phase",
          "left": {
            "phase": "oqmd-10572",
            "x": 0.2
          },
          "mu_a_rel": -0.09797756500000038,
          "mu_b_rel": -0.8626375399999984,
          "right": {
            "phase": "oqmd-10568",
            "x": 0.3333333333333333
          },
          "slope": -0.7646599749999979,
          "x_hi": 0.3333333333333333,
          "x_lo": 0.2
        },
        {
          "intercept": -0.5292963349999995,
          "kind": "two_phase",
          "left": {
            "phase": "oqmd-10568",
            "x": 0.3333333333333333
          },
          "mu_a_rel": -0.5292963349999995,
          "mu_b_rel": -1.1102230246251565e-16,
          "right": {
            "phase": "oqmd-6089",
            "x": 1.0
          },
          "slope": 0.5292963349999994,
          "x_hi": 1.0,
          "x_lo": 0.3333333333333333
        }
      ],
      "temperature_K": 0.0,
      "vertices": [
        {
          "collinear": false,
          "degenerate": [],
          "energy": 0.0,
          "energy_per_atom": -3.745739,
          "entries_at_x": 23,
          "formula": "Al",
          "nsites": null,
          "phase": "oqmd-ref-Al",
          "phase_kind": "structure",
          "spacegroup_number": null,
          "spacegroup_symbol": "",
          "theoretical": false,
          "x": 0.0
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -0.25090956,
          "energy_per_atom": -6.107177824,
          "entries_at_x": 1,
          "formula": "Al4 Pu1",
          "nsites": 10,
          "phase": "oqmd-10572",
          "phase_kind": "structure",
          "spacegroup_number": 74,
          "spacegroup_symbol": "Imma",
          "theoretical": false,
          "x": 0.2
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": -0.352864223333333,
          "energy_per_atom": -7.61615169,
          "entries_at_x": 3,
          "formula": "Al2 Pu1",
          "nsites": 6,
          "phase": "oqmd-10568",
          "phase_kind": "structure",
          "spacegroup_number": 227,
          "spacegroup_symbol": "Fd-3m",
          "theoretical": false,
          "x": 0.3333333333333333
        },
        {
          "collinear": false,
          "degenerate": [],
          "energy": 0.0,
          "energy_per_atom": -14.29838348,
          "entries_at_x": 21,
          "formula": "Pu1",
          "nsites": 16,
          "phase": "oqmd-6089",
          "phase_kind": "structure",
          "spacegroup_number": 6,
          "spacegroup_symbol": "Pm",
          "theoretical": false,
          "x": 1.0
        }
      ]
    }
  ],
  "mp_agreement": {
    "comparable": false,
    "comparable_note": "is_stable is derived by the extraction, not an upstream flag, so comparing it against a hull recomputed from the same energies tests the derivation rather than the data",
    "max_abs_delta_energy_above_hull": 0.0003310266666670114,
    "only_mp_stable": [
      "oqmd-ref-Pu"
    ],
    "only_ours_stable": [
      "oqmd-10568"
    ],
    "stable_sets_match": false
  },
  "provenance": {
    "above_hull_window_eV": 0.05,
    "builder_version": 1,
    "collinear_tol": 1e-12,
    "correction_model": "OQMD fit-partial ('standard' fit, applied upstream by OQMD; none added)",
    "degenerate_tol": 1e-06,
    "entry_pool": "all_nondeprecated",
    "is_stable_source": "derived",
    "observed_at": "2026-09-05T17:02:03Z",
    "snapshot_scope_elements": [],
    "snapshot_scope_kind": "full",
    "snapshot_sha256": "2a9393262c52ec35600424236c352a4cdb3291c8b25c1c6588f5e62abe8e0d8d",
    "source_release": "qmdb_v1_8_022026",
    "stability_tol": 0.0001,
    "thermo_type": "standard",
    "upstream_energy_corrections": "OQMD 'standard' fit (fit-partial of Kirklin et al. 2015): elemental reference energies of a subset of elements fitted to experimental formation enthalpies, applied by OQMD"
  },
  "reference": {
    "kind": "dft_fitted_elemental_reference_0K",
    "per": "atom",
    "temperature_K": 0.0,
    "units": "eV/atom"
  },
  "schema_version": 1,
  "system_id": "AL-PU",
  "x_element": "PU"
}
