{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:S7Z634CNB4OPAWQG7YDHLMBJCR","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"096334e6813f34b505805582e89ce73f19550dd1d4ca2934e7ee0ef931124619","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-07-13T16:04:42Z","title_canon_sha256":"a0ed5a5b625165130eac9110c16734dd4f54c8728bac3a18957cc700eb783e27"},"schema_version":"1.0","source":{"id":"2607.11996","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.11996","created_at":"2026-07-15T00:21:26Z"},{"alias_kind":"arxiv_version","alias_value":"2607.11996v1","created_at":"2026-07-15T00:21:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.11996","created_at":"2026-07-15T00:21:26Z"},{"alias_kind":"pith_short_12","alias_value":"S7Z634CNB4OP","created_at":"2026-07-15T00:21:26Z"},{"alias_kind":"pith_short_16","alias_value":"S7Z634CNB4OPAWQG","created_at":"2026-07-15T00:21:26Z"},{"alias_kind":"pith_short_8","alias_value":"S7Z634CN","created_at":"2026-07-15T00:21:26Z"}],"graph_snapshots":[{"event_id":"sha256:2adbe96ff8a06b73f82c938b67dfac6bbf924eed44c5f9c02fd2324c2a3582cb","target":"graph","created_at":"2026-07-15T00:21:26Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2607.11996/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We curated 320 cubic ($Fd\\bar{3}m$) spinel entries from the Materials Project-nitrides, oxides, sulfides, and selenides, including single-cation mixed-valence $A_3X_4$ compounds-and trained tree-ensemble surrogates for the formation energy, energy above the convex hull, band gap, total magnetization, and metallicity. Cations were assigned to tetrahedral-like and octahedral-like groups from CrystalNN coordination numbers rather than from element identity, and the evaluation was group-aware throughout: splits were grouped by reduced formula, every transform was fit on training folds only, and ch","authors_text":"Ayoub El Maazouzi, Keltoum Khallouq, Rachid Masrour","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-07-13T16:04:42Z","title":"Coordination-Resolved Surrogate Models for Thermodynamic Stability, Band Gaps, and Magnetic Moments of Spinel Oxides, Sulfides, and Selenides"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.11996","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:d54a2a3da7bddb26b01744988ff0d315ad0eccfee05cafb3563cf1a810e43d44","target":"record","created_at":"2026-07-15T00:21:26Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"096334e6813f34b505805582e89ce73f19550dd1d4ca2934e7ee0ef931124619","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-07-13T16:04:42Z","title_canon_sha256":"a0ed5a5b625165130eac9110c16734dd4f54c8728bac3a18957cc700eb783e27"},"schema_version":"1.0","source":{"id":"2607.11996","kind":"arxiv","version":1}},"canonical_sha256":"97f3edf04d0f1cf05a06fe0675b02914470cd45938b65af82c4189c08362fd68","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"97f3edf04d0f1cf05a06fe0675b02914470cd45938b65af82c4189c08362fd68","first_computed_at":"2026-07-15T00:21:26.703375Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-15T00:21:26.703375Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"k+kuf7Oprbh8oiE1+urydgMzEpwlpvdY6iUeUs7eTY8gUTNoF8eGhk9SuvGMSAOfDKBZ0lPcsivCYnxiRAmzAQ==","signature_status":"signed_v1","signed_at":"2026-07-15T00:21:26.704206Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.11996","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d54a2a3da7bddb26b01744988ff0d315ad0eccfee05cafb3563cf1a810e43d44","sha256:2adbe96ff8a06b73f82c938b67dfac6bbf924eed44c5f9c02fd2324c2a3582cb"],"state_sha256":"a7725d616e46f2f2f6c936be59c8dcca21785203092cfb08bc03103cb7b6e802"}