{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:KZZ35Z5MTQB4FFD7Y2LGLHWGKN","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":"11cc978deafe6a522ae674b1133c39a2181f3bdc815325fe8e43c7d1c206beb4","cross_cats_sorted":["cond-mat.stat-mech"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2016-04-22T22:07:02Z","title_canon_sha256":"c73b94f9ea3a3c1b6766a4f17c003af3dac577f1024c38ffe28f50445434d087"},"schema_version":"1.0","source":{"id":"1604.06827","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1604.06827","created_at":"2026-05-18T01:00:39Z"},{"alias_kind":"arxiv_version","alias_value":"1604.06827v1","created_at":"2026-05-18T01:00:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1604.06827","created_at":"2026-05-18T01:00:39Z"},{"alias_kind":"pith_short_12","alias_value":"KZZ35Z5MTQB4","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_16","alias_value":"KZZ35Z5MTQB4FFD7","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_8","alias_value":"KZZ35Z5M","created_at":"2026-05-18T12:30:29Z"}],"graph_snapshots":[{"event_id":"sha256:ae6e807c415db39f0d896c0430535cb7e0a5f63d731f485aff4dbf65afd77cde","target":"graph","created_at":"2026-05-18T01:00:39Z","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"},"paper":{"abstract_excerpt":"The statistical thermodynamics of binary mixtures of polyatomic species was developed on a generalization in the spirit of the lattice-gas model and the quasi-chemical approximation (QCA). The new theoretical framework is obtained by combining: (i) the exact analytical expression for the partition function of non-interacting mixtures of linear $k$-mers and $l$-mers (species occupying $k$ sites and $l$ sites, respectively) adsorbed in one dimension, and its extension to higher dimensions; and (ii) a generalization of the classical QCA for multicomponent adsorbates and multisite-occupancy adsorp","authors_text":"A. J. Ramirez-Pastor, D. A. Matoz-Fernandez, M. V. D\\'avila, P. M. Pasinetti","cross_cats":["cond-mat.stat-mech"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2016-04-22T22:07:02Z","title":"Quasi-chemical approximation for polyatomic mixtures"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1604.06827","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":"sha256:54d5fd4e31f669fc5010cbd9b3b15f8e78eb5fe41ab9c562433d7cd14402d295","target":"record","created_at":"2026-05-18T01:00:39Z","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":"11cc978deafe6a522ae674b1133c39a2181f3bdc815325fe8e43c7d1c206beb4","cross_cats_sorted":["cond-mat.stat-mech"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2016-04-22T22:07:02Z","title_canon_sha256":"c73b94f9ea3a3c1b6766a4f17c003af3dac577f1024c38ffe28f50445434d087"},"schema_version":"1.0","source":{"id":"1604.06827","kind":"arxiv","version":1}},"canonical_sha256":"5673bee7ac9c03c2947fc696659ec65378de35c0fe78513cf2fa610b1a132e7e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5673bee7ac9c03c2947fc696659ec65378de35c0fe78513cf2fa610b1a132e7e","first_computed_at":"2026-05-18T01:00:39.293421Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:00:39.293421Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rZrlwoY8/3YYW+CwNQ5Np6yV0blb7LBHdACqpgRcA/6X+nMj+B1NZZ2vwWIZYphuYUY1ln2M0L5BaBUMxhC8Bg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:00:39.294006Z","signed_message":"canonical_sha256_bytes"},"source_id":"1604.06827","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:54d5fd4e31f669fc5010cbd9b3b15f8e78eb5fe41ab9c562433d7cd14402d295","sha256:ae6e807c415db39f0d896c0430535cb7e0a5f63d731f485aff4dbf65afd77cde"],"state_sha256":"328633e6871c072a2733c167b5d9fafe73375ea3bbb701b935fc4bf25c76ac07"}