{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:XHLR7VXHCZBS36HHZZCMUBHQGN","short_pith_number":"pith:XHLR7VXH","canonical_record":{"source":{"id":"1908.01254","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2019-08-04T01:40:20Z","cross_cats_sorted":[],"title_canon_sha256":"c7c6a5ce357f38d73322f9ac002e4ba2c1dc5fe74596ed2a18e4e9ea42993226","abstract_canon_sha256":"6b76fc699f50dc5df3c33135a393418fc54cb0e5efcf179c4ef6783447d20b8f"},"schema_version":"1.0"},"canonical_sha256":"b9d71fd6e716432df8e7ce44ca04f03371315b823e63e57ff0782bd642c3a03e","source":{"kind":"arxiv","id":"1908.01254","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.01254","created_at":"2026-07-05T00:31:14Z"},{"alias_kind":"arxiv_version","alias_value":"1908.01254v2","created_at":"2026-07-05T00:31:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.01254","created_at":"2026-07-05T00:31:14Z"},{"alias_kind":"pith_short_12","alias_value":"XHLR7VXHCZBS","created_at":"2026-07-05T00:31:14Z"},{"alias_kind":"pith_short_16","alias_value":"XHLR7VXHCZBS36HH","created_at":"2026-07-05T00:31:14Z"},{"alias_kind":"pith_short_8","alias_value":"XHLR7VXH","created_at":"2026-07-05T00:31:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:XHLR7VXHCZBS36HHZZCMUBHQGN","target":"record","payload":{"canonical_record":{"source":{"id":"1908.01254","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2019-08-04T01:40:20Z","cross_cats_sorted":[],"title_canon_sha256":"c7c6a5ce357f38d73322f9ac002e4ba2c1dc5fe74596ed2a18e4e9ea42993226","abstract_canon_sha256":"6b76fc699f50dc5df3c33135a393418fc54cb0e5efcf179c4ef6783447d20b8f"},"schema_version":"1.0"},"canonical_sha256":"b9d71fd6e716432df8e7ce44ca04f03371315b823e63e57ff0782bd642c3a03e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:31:14.454329Z","signature_b64":"OErI+rlCD6557E/H2rmBdy923JL2b1KhmXMqFmmznedfyZdecqJqRmzl89I+EeDCC514JEoSi4HiSaNDwgDYBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b9d71fd6e716432df8e7ce44ca04f03371315b823e63e57ff0782bd642c3a03e","last_reissued_at":"2026-07-05T00:31:14.453858Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:31:14.453858Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1908.01254","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T00:31:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ivpNcvWTJaqQiAws6Y/0MT6MwSrAkueeEIFCMMWbVtgjGUuBbtYkN9TdeXuHmtOgyXkK/+kxFDBXJjDJrx0vCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T16:49:09.822574Z"},"content_sha256":"4f0d70c75348d9423c8fabedf7ac49c0a9457ac169c72b8b2131ee4b31a026ae","schema_version":"1.0","event_id":"sha256:4f0d70c75348d9423c8fabedf7ac49c0a9457ac169c72b8b2131ee4b31a026ae"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:XHLR7VXHCZBS36HHZZCMUBHQGN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Thermodynamic Instabilities of Generalized Exotic BTZ Black Holes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Robert B. Mann, Wan Cong","submitted_at":"2019-08-04T01:40:20Z","abstract_excerpt":"We examine the conjecture that black holes violating the reverse isoperimetric inequality have negative specific heat at constant volume $C_V$. We test this conjecture on the family of generalized exotic Ba\\~nados, Teitelbiom and Zanelli (BTZ) black holes and find that $C_V$ can be positive even when the reverse isoperimetric inequality is violated, providing a counter example to the conjecture. However in all cases where $C_V$ is positive, the specific heat at constant pressure $C_P$ is negative, indicating that generalized exotic black holes are thermodynamically unstable, suggesting that a "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.01254","kind":"arxiv","version":2},"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/1908.01254/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":"2026-07-05T00:31:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"APNOPfV0C4M7WKX7SzlanYl4NIPOtK5jGo0ITYJjMCsZiS/UVcmDixQsEU9vcp81Nm8RePS+SCHNbTUCvuHEDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T16:49:09.822921Z"},"content_sha256":"84778294affd0f49d11fb1470622dc8b6fd381986337c194f299c1a4d823e7d8","schema_version":"1.0","event_id":"sha256:84778294affd0f49d11fb1470622dc8b6fd381986337c194f299c1a4d823e7d8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XHLR7VXHCZBS36HHZZCMUBHQGN/bundle.json","state_url":"https://pith.science/pith/XHLR7VXHCZBS36HHZZCMUBHQGN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XHLR7VXHCZBS36HHZZCMUBHQGN/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":"2026-08-11T16:49:09Z","links":{"resolver":"https://pith.science/pith/XHLR7VXHCZBS36HHZZCMUBHQGN","bundle":"https://pith.science/pith/XHLR7VXHCZBS36HHZZCMUBHQGN/bundle.json","state":"https://pith.science/pith/XHLR7VXHCZBS36HHZZCMUBHQGN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XHLR7VXHCZBS36HHZZCMUBHQGN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:XHLR7VXHCZBS36HHZZCMUBHQGN","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":"6b76fc699f50dc5df3c33135a393418fc54cb0e5efcf179c4ef6783447d20b8f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2019-08-04T01:40:20Z","title_canon_sha256":"c7c6a5ce357f38d73322f9ac002e4ba2c1dc5fe74596ed2a18e4e9ea42993226"},"schema_version":"1.0","source":{"id":"1908.01254","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.01254","created_at":"2026-07-05T00:31:14Z"},{"alias_kind":"arxiv_version","alias_value":"1908.01254v2","created_at":"2026-07-05T00:31:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.01254","created_at":"2026-07-05T00:31:14Z"},{"alias_kind":"pith_short_12","alias_value":"XHLR7VXHCZBS","created_at":"2026-07-05T00:31:14Z"},{"alias_kind":"pith_short_16","alias_value":"XHLR7VXHCZBS36HH","created_at":"2026-07-05T00:31:14Z"},{"alias_kind":"pith_short_8","alias_value":"XHLR7VXH","created_at":"2026-07-05T00:31:14Z"}],"graph_snapshots":[{"event_id":"sha256:84778294affd0f49d11fb1470622dc8b6fd381986337c194f299c1a4d823e7d8","target":"graph","created_at":"2026-07-05T00:31:14Z","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/1908.01254/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We examine the conjecture that black holes violating the reverse isoperimetric inequality have negative specific heat at constant volume $C_V$. We test this conjecture on the family of generalized exotic Ba\\~nados, Teitelbiom and Zanelli (BTZ) black holes and find that $C_V$ can be positive even when the reverse isoperimetric inequality is violated, providing a counter example to the conjecture. However in all cases where $C_V$ is positive, the specific heat at constant pressure $C_P$ is negative, indicating that generalized exotic black holes are thermodynamically unstable, suggesting that a ","authors_text":"Robert B. Mann, Wan Cong","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2019-08-04T01:40:20Z","title":"Thermodynamic Instabilities of Generalized Exotic BTZ Black Holes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.01254","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":"sha256:4f0d70c75348d9423c8fabedf7ac49c0a9457ac169c72b8b2131ee4b31a026ae","target":"record","created_at":"2026-07-05T00:31:14Z","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":"6b76fc699f50dc5df3c33135a393418fc54cb0e5efcf179c4ef6783447d20b8f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2019-08-04T01:40:20Z","title_canon_sha256":"c7c6a5ce357f38d73322f9ac002e4ba2c1dc5fe74596ed2a18e4e9ea42993226"},"schema_version":"1.0","source":{"id":"1908.01254","kind":"arxiv","version":2}},"canonical_sha256":"b9d71fd6e716432df8e7ce44ca04f03371315b823e63e57ff0782bd642c3a03e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b9d71fd6e716432df8e7ce44ca04f03371315b823e63e57ff0782bd642c3a03e","first_computed_at":"2026-07-05T00:31:14.453858Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:31:14.453858Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"OErI+rlCD6557E/H2rmBdy923JL2b1KhmXMqFmmznedfyZdecqJqRmzl89I+EeDCC514JEoSi4HiSaNDwgDYBA==","signature_status":"signed_v1","signed_at":"2026-07-05T00:31:14.454329Z","signed_message":"canonical_sha256_bytes"},"source_id":"1908.01254","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4f0d70c75348d9423c8fabedf7ac49c0a9457ac169c72b8b2131ee4b31a026ae","sha256:84778294affd0f49d11fb1470622dc8b6fd381986337c194f299c1a4d823e7d8"],"state_sha256":"63e8b5e36c48c0ad7313d635104d1e58e34c3274c58425d3bb290102b95ac9b0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"J6MnRzlxXe0oygSNXyEc/vJKpgwLOCjLtaK6QJTgWEYZ91aIDdQ9NR8Qo+DKJsgpK193sqwi0OOD0VuSz27DBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-11T16:49:09.825354Z","bundle_sha256":"84163ab4efa6f2ed64099ec9614e0c5c8b584b8662b7c4ae3c956c148a8fb583"}}