{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:5TBYTPGV5V4RYBJAQWS2RCCAGC","short_pith_number":"pith:5TBYTPGV","canonical_record":{"source":{"id":"2001.02897","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2020-01-09T09:33:35Z","cross_cats_sorted":["astro-ph.HE","cond-mat.stat-mech","gr-qc","quant-ph"],"title_canon_sha256":"7af5c8c8c4b84f62a4392c37b45d5a4f31b26ccd0ff812ca5e2251f8a2043980","abstract_canon_sha256":"ab83b5a924669aaa9cc55a7a9180544e3b731a48d50c82455ca6fd97e8619351"},"schema_version":"1.0"},"canonical_sha256":"ecc389bcd5ed791c052085a5a888403084b51b258445387029d31467b8242d8a","source":{"kind":"arxiv","id":"2001.02897","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2001.02897","created_at":"2026-07-05T10:43:23Z"},{"alias_kind":"arxiv_version","alias_value":"2001.02897v4","created_at":"2026-07-05T10:43:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2001.02897","created_at":"2026-07-05T10:43:23Z"},{"alias_kind":"pith_short_12","alias_value":"5TBYTPGV5V4R","created_at":"2026-07-05T10:43:23Z"},{"alias_kind":"pith_short_16","alias_value":"5TBYTPGV5V4RYBJA","created_at":"2026-07-05T10:43:23Z"},{"alias_kind":"pith_short_8","alias_value":"5TBYTPGV","created_at":"2026-07-05T10:43:23Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:5TBYTPGV5V4RYBJAQWS2RCCAGC","target":"record","payload":{"canonical_record":{"source":{"id":"2001.02897","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2020-01-09T09:33:35Z","cross_cats_sorted":["astro-ph.HE","cond-mat.stat-mech","gr-qc","quant-ph"],"title_canon_sha256":"7af5c8c8c4b84f62a4392c37b45d5a4f31b26ccd0ff812ca5e2251f8a2043980","abstract_canon_sha256":"ab83b5a924669aaa9cc55a7a9180544e3b731a48d50c82455ca6fd97e8619351"},"schema_version":"1.0"},"canonical_sha256":"ecc389bcd5ed791c052085a5a888403084b51b258445387029d31467b8242d8a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:43:23.565269Z","signature_b64":"82JGa4e3V5KMRBiDzLGEUPS+llTo8GCLYM8o+s29N/aU3Lh/tlPGhHvmO69Zlhh90Hvo2b57Hn8CElLhGAwGCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ecc389bcd5ed791c052085a5a888403084b51b258445387029d31467b8242d8a","last_reissued_at":"2026-07-05T10:43:23.564855Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:43:23.564855Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2001.02897","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T10:43:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jHSYlok3yUko9eMuItZvHymTIQUz4LsOyNH25Czv8A/MVGZiUXZCAcC2VAy6ppfo4Q212VFeGjK8Qa3mkSfyCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T09:21:48.894523Z"},"content_sha256":"13928182072a5708537472b477149d70e3404997d827d7b431002203ec7d38e0","schema_version":"1.0","event_id":"sha256:13928182072a5708537472b477149d70e3404997d827d7b431002203ec7d38e0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:5TBYTPGV5V4RYBJAQWS2RCCAGC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Second law of black hole thermodynamics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE","cond-mat.stat-mech","gr-qc","quant-ph"],"primary_cat":"hep-th","authors_text":"Go Kato, Koji Azuma","submitted_at":"2020-01-09T09:33:35Z","abstract_excerpt":"If simple entropy in the Bekenstein-Hawking area law for a Schwarzschild black hole is replaced with 'negative' quantum conditional entropy, which quantifies quantum entanglement, of positive-energy particles of the black hole relative to its outside, a paradox with the original pair-creation picture of Hawking radiation, the first law for black hole mechanics and quantum mechanics is resolved. However, there was no way to judge experimentally which area law is indeed adopted by black holes. Here, with the no-hair conjecture, we derive the perfect picture of a second law of black hole thermody"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2001.02897","kind":"arxiv","version":4},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2001.02897/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T10:43:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8K5a1UPjmp2wJX2ri8FtVLWWtZ4NnQj1zOVkWfiM5KIBzyC4YhdOU06LIqnie3RNSje22vncTEP073CyIuDuAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T09:21:48.896635Z"},"content_sha256":"e80220dfb86637df016bcbe045fbbaef12a52c62fef298bb48cb90bb59a4bb4b","schema_version":"1.0","event_id":"sha256:e80220dfb86637df016bcbe045fbbaef12a52c62fef298bb48cb90bb59a4bb4b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5TBYTPGV5V4RYBJAQWS2RCCAGC/bundle.json","state_url":"https://pith.science/pith/5TBYTPGV5V4RYBJAQWS2RCCAGC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5TBYTPGV5V4RYBJAQWS2RCCAGC/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-15T09:21:48Z","links":{"resolver":"https://pith.science/pith/5TBYTPGV5V4RYBJAQWS2RCCAGC","bundle":"https://pith.science/pith/5TBYTPGV5V4RYBJAQWS2RCCAGC/bundle.json","state":"https://pith.science/pith/5TBYTPGV5V4RYBJAQWS2RCCAGC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5TBYTPGV5V4RYBJAQWS2RCCAGC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:5TBYTPGV5V4RYBJAQWS2RCCAGC","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":"ab83b5a924669aaa9cc55a7a9180544e3b731a48d50c82455ca6fd97e8619351","cross_cats_sorted":["astro-ph.HE","cond-mat.stat-mech","gr-qc","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2020-01-09T09:33:35Z","title_canon_sha256":"7af5c8c8c4b84f62a4392c37b45d5a4f31b26ccd0ff812ca5e2251f8a2043980"},"schema_version":"1.0","source":{"id":"2001.02897","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2001.02897","created_at":"2026-07-05T10:43:23Z"},{"alias_kind":"arxiv_version","alias_value":"2001.02897v4","created_at":"2026-07-05T10:43:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2001.02897","created_at":"2026-07-05T10:43:23Z"},{"alias_kind":"pith_short_12","alias_value":"5TBYTPGV5V4R","created_at":"2026-07-05T10:43:23Z"},{"alias_kind":"pith_short_16","alias_value":"5TBYTPGV5V4RYBJA","created_at":"2026-07-05T10:43:23Z"},{"alias_kind":"pith_short_8","alias_value":"5TBYTPGV","created_at":"2026-07-05T10:43:23Z"}],"graph_snapshots":[{"event_id":"sha256:e80220dfb86637df016bcbe045fbbaef12a52c62fef298bb48cb90bb59a4bb4b","target":"graph","created_at":"2026-07-05T10:43:23Z","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/2001.02897/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"If simple entropy in the Bekenstein-Hawking area law for a Schwarzschild black hole is replaced with 'negative' quantum conditional entropy, which quantifies quantum entanglement, of positive-energy particles of the black hole relative to its outside, a paradox with the original pair-creation picture of Hawking radiation, the first law for black hole mechanics and quantum mechanics is resolved. However, there was no way to judge experimentally which area law is indeed adopted by black holes. Here, with the no-hair conjecture, we derive the perfect picture of a second law of black hole thermody","authors_text":"Go Kato, Koji Azuma","cross_cats":["astro-ph.HE","cond-mat.stat-mech","gr-qc","quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2020-01-09T09:33:35Z","title":"Second law of black hole thermodynamics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2001.02897","kind":"arxiv","version":4},"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":"sha256:13928182072a5708537472b477149d70e3404997d827d7b431002203ec7d38e0","target":"record","created_at":"2026-07-05T10:43:23Z","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":"ab83b5a924669aaa9cc55a7a9180544e3b731a48d50c82455ca6fd97e8619351","cross_cats_sorted":["astro-ph.HE","cond-mat.stat-mech","gr-qc","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2020-01-09T09:33:35Z","title_canon_sha256":"7af5c8c8c4b84f62a4392c37b45d5a4f31b26ccd0ff812ca5e2251f8a2043980"},"schema_version":"1.0","source":{"id":"2001.02897","kind":"arxiv","version":4}},"canonical_sha256":"ecc389bcd5ed791c052085a5a888403084b51b258445387029d31467b8242d8a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ecc389bcd5ed791c052085a5a888403084b51b258445387029d31467b8242d8a","first_computed_at":"2026-07-05T10:43:23.564855Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:43:23.564855Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"82JGa4e3V5KMRBiDzLGEUPS+llTo8GCLYM8o+s29N/aU3Lh/tlPGhHvmO69Zlhh90Hvo2b57Hn8CElLhGAwGCA==","signature_status":"signed_v1","signed_at":"2026-07-05T10:43:23.565269Z","signed_message":"canonical_sha256_bytes"},"source_id":"2001.02897","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:13928182072a5708537472b477149d70e3404997d827d7b431002203ec7d38e0","sha256:e80220dfb86637df016bcbe045fbbaef12a52c62fef298bb48cb90bb59a4bb4b"],"state_sha256":"4213fb5e7a2df8fb5e8ab358fb04a20a8216d97cc737714ecf68c00bf18fd014"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"odicCxZVw1UR67rbvfOEtBTj3K28BuI47NI1zA9qBd0UqSZcTFAcrRAeUNEmXqslhT/fLHwQ5/IuD37QQhKuBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-15T09:21:48.902211Z","bundle_sha256":"01ca3eadd0e6a5b9c40f8c90606851d47c9d87b9c468d4f5cd8d4f13db306618"}}