{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:RKFFNY3ENFRZE6PR2HD34SFOFD","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":"d15d44c1445cd7e0b1338abcefe8fcb6ea966a071bdf0fa34729ad6f3832e32b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2009-11-20T11:14:57Z","title_canon_sha256":"a90f661797ee1663beebfd6795540b87cd17ca2088895c53bd8232788244d3a3"},"schema_version":"1.0","source":{"id":"0911.4016","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0911.4016","created_at":"2026-05-18T02:10:45Z"},{"alias_kind":"arxiv_version","alias_value":"0911.4016v1","created_at":"2026-05-18T02:10:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0911.4016","created_at":"2026-05-18T02:10:45Z"},{"alias_kind":"pith_short_12","alias_value":"RKFFNY3ENFRZ","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_16","alias_value":"RKFFNY3ENFRZE6PR","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_8","alias_value":"RKFFNY3E","created_at":"2026-05-18T12:26:01Z"}],"graph_snapshots":[{"event_id":"sha256:9eff47f208b650a4d0e2bfa07a8dde192e6a14de2b3d4e3de42239aedda198dc","target":"graph","created_at":"2026-05-18T02:10:45Z","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":"Measurements of the sound velocities in a single crystal of FeSi were performed in the temperature range 4-300 K. Elastic constants $C_{12}$ and $C_{44}$ deviate from a quasiharmonic behavior at high temperature; whereas, $C_{12}$ increases anomalously in the entire range of temperature, indicating a change in the electron structure of this material","authors_text":"Alla E. Petrova, Sergei M. Stishov, Vladimir N. Krasnorussky","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2009-11-20T11:14:57Z","title":"Elastic properties of FeSi"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0911.4016","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":"sha256:546d81d6f1d8e8edb1659579b96371755e356e644bed92420a3e952b28c4e22a","target":"record","created_at":"2026-05-18T02:10:45Z","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":"d15d44c1445cd7e0b1338abcefe8fcb6ea966a071bdf0fa34729ad6f3832e32b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2009-11-20T11:14:57Z","title_canon_sha256":"a90f661797ee1663beebfd6795540b87cd17ca2088895c53bd8232788244d3a3"},"schema_version":"1.0","source":{"id":"0911.4016","kind":"arxiv","version":1}},"canonical_sha256":"8a8a56e36469639279f1d1c7be48ae28f156b2cbdbf01495cc0b19cffedddf93","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8a8a56e36469639279f1d1c7be48ae28f156b2cbdbf01495cc0b19cffedddf93","first_computed_at":"2026-05-18T02:10:45.532865Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:10:45.532865Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/wOg1ibFVqmasPYfoolA1bteyUXqNcghf90jY/0VNYGn2h08ZdbipBc/OS9/L5QtkCi+ZdsCo46iKcJAUpgWAw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:10:45.533588Z","signed_message":"canonical_sha256_bytes"},"source_id":"0911.4016","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:546d81d6f1d8e8edb1659579b96371755e356e644bed92420a3e952b28c4e22a","sha256:9eff47f208b650a4d0e2bfa07a8dde192e6a14de2b3d4e3de42239aedda198dc"],"state_sha256":"f417752565cc705a07154ed4cf4aeac8c60d24f1f72262c1f932ed1f92a09cf2"}