{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:VTLQULPYOFCXZA2GQDG6HVJVBU","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":"afebe2458f30a4dee59b572dd18f7ea3f58efb5b8aafffff62eb5c6624106d2a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2019-07-12T08:04:24Z","title_canon_sha256":"e41c0e41384e6ed9c07fdf5cd93aa151217d9b76b1545ee0ee5d4112c656ce25"},"schema_version":"1.0","source":{"id":"1907.07143","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.07143","created_at":"2026-07-05T02:38:12Z"},{"alias_kind":"arxiv_version","alias_value":"1907.07143v2","created_at":"2026-07-05T02:38:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.07143","created_at":"2026-07-05T02:38:12Z"},{"alias_kind":"pith_short_12","alias_value":"VTLQULPYOFCX","created_at":"2026-07-05T02:38:12Z"},{"alias_kind":"pith_short_16","alias_value":"VTLQULPYOFCXZA2G","created_at":"2026-07-05T02:38:12Z"},{"alias_kind":"pith_short_8","alias_value":"VTLQULPY","created_at":"2026-07-05T02:38:12Z"}],"graph_snapshots":[{"event_id":"sha256:c0360a1f2e06ec6bdb4b34c23284b7ca87727c8224eb86f89e03da6fec424395","target":"graph","created_at":"2026-07-05T02:38:12Z","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/1907.07143/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We study the entropic considerations on the Universe system and the Universe-Black hole system, filled by cosmological constant or exotic quintessence-like and phantom-like fields having negative pressure, using their relevant entropic bounds. It turns out that for both systems these considerations single out the cosmological constant, among the negative pressure candidate fields, as the viable cosmological field.","authors_text":"F. Darabi, H. Hadi, Y. Heydarzade","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2019-07-12T08:04:24Z","title":"Entropic considerations on the Universe and Universe-Black Hole Systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.07143","kind":"arxiv","version":2},"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":"sha256:5fc0b008326ce4d76b9d59694ac80c95b497e6674aa394de30c7d75e812ec49d","target":"record","created_at":"2026-07-05T02:38:12Z","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":"afebe2458f30a4dee59b572dd18f7ea3f58efb5b8aafffff62eb5c6624106d2a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2019-07-12T08:04:24Z","title_canon_sha256":"e41c0e41384e6ed9c07fdf5cd93aa151217d9b76b1545ee0ee5d4112c656ce25"},"schema_version":"1.0","source":{"id":"1907.07143","kind":"arxiv","version":2}},"canonical_sha256":"acd70a2df871457c834680cde3d5350d14133628efa60ad8ef480e6bcef5c584","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"acd70a2df871457c834680cde3d5350d14133628efa60ad8ef480e6bcef5c584","first_computed_at":"2026-07-05T02:38:12.046703Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:38:12.046703Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xpDnv1cpjh8jHguEre9Z9jh7mkPxbXE/5O6d7lWeGEb1aQBQZCaqNTZcs4hCmjZ4Q4cPN590aMH4AvdvILdoAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T02:38:12.047293Z","signed_message":"canonical_sha256_bytes"},"source_id":"1907.07143","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5fc0b008326ce4d76b9d59694ac80c95b497e6674aa394de30c7d75e812ec49d","sha256:c0360a1f2e06ec6bdb4b34c23284b7ca87727c8224eb86f89e03da6fec424395"],"state_sha256":"3cc410c5a2c962426edfbb4c1fa8ac305dd2077bc0d1b5472ab015c6ac9cc07a"}