{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:CHNQNE5KB47LJIKC23CU2W3UZU","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":"2bae6f3609a47d0d7c8a9ae3c0459c7ef21550f4450997abfc428e78b5b008e7","cross_cats_sorted":["astro-ph.CO","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2023-06-24T09:24:14Z","title_canon_sha256":"886a2303b203dd431daa0c60d61f007e013dacd0f476e3e35968ebcf702ccc8b"},"schema_version":"1.0","source":{"id":"2306.13912","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2306.13912","created_at":"2026-07-05T06:24:17Z"},{"alias_kind":"arxiv_version","alias_value":"2306.13912v1","created_at":"2026-07-05T06:24:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2306.13912","created_at":"2026-07-05T06:24:17Z"},{"alias_kind":"pith_short_12","alias_value":"CHNQNE5KB47L","created_at":"2026-07-05T06:24:17Z"},{"alias_kind":"pith_short_16","alias_value":"CHNQNE5KB47LJIKC","created_at":"2026-07-05T06:24:17Z"},{"alias_kind":"pith_short_8","alias_value":"CHNQNE5K","created_at":"2026-07-05T06:24:17Z"}],"graph_snapshots":[{"event_id":"sha256:ce5c4d0ef7de6a80570b27d84f6451b430aac045fba01cdf9f476c6c3bf3491c","target":"graph","created_at":"2026-07-05T06:24:17Z","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/2306.13912/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In this work, we explore the formalism of the irreversible thermodynamics of open systems and the possibility of gravitationally generated particle production in modified gravity. More specifically, we consider the scalar-tensor representation of $f(R,T)$ gravity, in which the matter energy-momentum tensor is not conserved due to a nonminimal curvature-matter coupling. In the context of the irreversible thermodynamics of open systems, this non-conservation of the energy-momentum tensor can be interpreted as an irreversible flow of energy from the gravitational sector to the matter sector, whic","authors_text":"Francisco S. N. Lobo, Miguel A. S. Pinto, Tiberiu Harko","cross_cats":["astro-ph.CO","hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2023-06-24T09:24:14Z","title":"Irreversible Geometrothermodynamics of Open Systems in Modified Gravity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2306.13912","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:d564e004d06b69f58c2607689cdef335782bc43505dac08bd2fd15de911e81ac","target":"record","created_at":"2026-07-05T06:24:17Z","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":"2bae6f3609a47d0d7c8a9ae3c0459c7ef21550f4450997abfc428e78b5b008e7","cross_cats_sorted":["astro-ph.CO","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2023-06-24T09:24:14Z","title_canon_sha256":"886a2303b203dd431daa0c60d61f007e013dacd0f476e3e35968ebcf702ccc8b"},"schema_version":"1.0","source":{"id":"2306.13912","kind":"arxiv","version":1}},"canonical_sha256":"11db0693aa0f3eb4a142d6c54d5b74cd08fae2a80bcf71b041088a4e702ce7c4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"11db0693aa0f3eb4a142d6c54d5b74cd08fae2a80bcf71b041088a4e702ce7c4","first_computed_at":"2026-07-05T06:24:17.494254Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:24:17.494254Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"iY7v7Z9xXBQxkZwAZyTMGDuQ+6iHk7E2hlwQfOJ4ogqaD4PSqZ8Wq8681SW0jx6FwrqFr7kgFL71YHezCEYzCw==","signature_status":"signed_v1","signed_at":"2026-07-05T06:24:17.494726Z","signed_message":"canonical_sha256_bytes"},"source_id":"2306.13912","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d564e004d06b69f58c2607689cdef335782bc43505dac08bd2fd15de911e81ac","sha256:ce5c4d0ef7de6a80570b27d84f6451b430aac045fba01cdf9f476c6c3bf3491c"],"state_sha256":"34fb240ab5e1228dff1bc4873d743498e39e9320a5251c5c89da433e9c075ad3"}