{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:75SWRBS3G444GCHTDLZDGYJIAX","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":"d893b6a776c536bf33d862ee7ebd161f8e2b173e8e24aa3d052ef0be8abc412e","cross_cats_sorted":["cond-mat.soft","physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-11-23T16:12:25Z","title_canon_sha256":"e0303f7b434bfdcf746338cdbd56a419fed0839ec45bfcca40112bbf5e389b75"},"schema_version":"1.0","source":{"id":"1811.09534","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.09534","created_at":"2026-05-18T00:00:03Z"},{"alias_kind":"arxiv_version","alias_value":"1811.09534v1","created_at":"2026-05-18T00:00:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.09534","created_at":"2026-05-18T00:00:03Z"},{"alias_kind":"pith_short_12","alias_value":"75SWRBS3G444","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_16","alias_value":"75SWRBS3G444GCHT","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_8","alias_value":"75SWRBS3","created_at":"2026-05-18T12:32:11Z"}],"graph_snapshots":[{"event_id":"sha256:f5a7d64451d54a3da280871695d3a135cbabf53d9cc31b5231cb49c719f1f2b7","target":"graph","created_at":"2026-05-18T00:00:03Z","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":"Using molecular dynamics simulations we compute the elastic constants of ice I$_h$ for a set of 8 frequently used semi-empirical potentials for water, namely the rigid-molecule SPC/E, TIP4P, TIP4P2005, TIP4P/Ice and TIP5P models, the flexible-molecule qTIP4P/Fw and SPC/Fw models and the coarse-grained atomic mW potential. In quantitative terms, the mW description gives values for the individual stiffness constants that are closest to experiment, whereas the explicit-proton models display substantial discrepancies. On the other hand, in contrast to all explicit-proton potentials, the mW model i","authors_text":"Maurice de Koning, Pedro Augusto Franco Pinheiro Moreira, Roberto Gomes de Aguiar Veiga","cross_cats":["cond-mat.soft","physics.comp-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-11-23T16:12:25Z","title":"Elastic constants of Ice I$_h$ as described by semi-empirical water models"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.09534","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":"sha256:4907e356a2aea9678ab00e2ac246a7332b7ffa401e912760ecf149948a07487c","target":"record","created_at":"2026-05-18T00:00:03Z","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":"d893b6a776c536bf33d862ee7ebd161f8e2b173e8e24aa3d052ef0be8abc412e","cross_cats_sorted":["cond-mat.soft","physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-11-23T16:12:25Z","title_canon_sha256":"e0303f7b434bfdcf746338cdbd56a419fed0839ec45bfcca40112bbf5e389b75"},"schema_version":"1.0","source":{"id":"1811.09534","kind":"arxiv","version":1}},"canonical_sha256":"ff6568865b3739c308f31af233612805e0263cec272a42ecc398f7e99b82f4b4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ff6568865b3739c308f31af233612805e0263cec272a42ecc398f7e99b82f4b4","first_computed_at":"2026-05-18T00:00:03.136359Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:00:03.136359Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dTUommOVYkyZaS1kqpnotA9vi9R6xYUMUQVvWJ/1mI7na7bgzkfh/K6T3VHlStWbJ7KlFM534lAiJutfTPmzDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:00:03.136913Z","signed_message":"canonical_sha256_bytes"},"source_id":"1811.09534","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4907e356a2aea9678ab00e2ac246a7332b7ffa401e912760ecf149948a07487c","sha256:f5a7d64451d54a3da280871695d3a135cbabf53d9cc31b5231cb49c719f1f2b7"],"state_sha256":"e41079f9e191ab78bc0a0f455cf6dbb96ecafb353e0781716edf2462d999c089"}