{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:QVCHD3WXNPFPCM5BAK5SSOIGHW","short_pith_number":"pith:QVCHD3WX","canonical_record":{"source":{"id":"1305.5964","kind":"arxiv","version":6},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-05-25T19:50:13Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"c5f2d5fe8c82c90a1b05f47dc2a2a910ab9a4c7d611dfa972ddd3a99ddc2d010","abstract_canon_sha256":"5f1c4b8f6e03449d5bd28b596ddbf2ad780e43a60e309e2636c6b6543aa83e02"},"schema_version":"1.0"},"canonical_sha256":"854471eed76bcaf133a102bb2939063da2215153b4c71172eed9bcaf127eedbc","source":{"kind":"arxiv","id":"1305.5964","version":6},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1305.5964","created_at":"2026-05-18T03:10:57Z"},{"alias_kind":"arxiv_version","alias_value":"1305.5964v6","created_at":"2026-05-18T03:10:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1305.5964","created_at":"2026-05-18T03:10:57Z"},{"alias_kind":"pith_short_12","alias_value":"QVCHD3WXNPFP","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_16","alias_value":"QVCHD3WXNPFPCM5B","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_8","alias_value":"QVCHD3WX","created_at":"2026-05-18T12:27:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:QVCHD3WXNPFPCM5BAK5SSOIGHW","target":"record","payload":{"canonical_record":{"source":{"id":"1305.5964","kind":"arxiv","version":6},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-05-25T19:50:13Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"c5f2d5fe8c82c90a1b05f47dc2a2a910ab9a4c7d611dfa972ddd3a99ddc2d010","abstract_canon_sha256":"5f1c4b8f6e03449d5bd28b596ddbf2ad780e43a60e309e2636c6b6543aa83e02"},"schema_version":"1.0"},"canonical_sha256":"854471eed76bcaf133a102bb2939063da2215153b4c71172eed9bcaf127eedbc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:10:57.949267Z","signature_b64":"hePt+zxNrRoISd+LZWDEvWIwI6+qdqJbC5LqJJlMCfk9e2dt556QoKrQHRC1djsbl75buWYhU56j8ZQ5rUbUDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"854471eed76bcaf133a102bb2939063da2215153b4c71172eed9bcaf127eedbc","last_reissued_at":"2026-05-18T03:10:57.948559Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:10:57.948559Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1305.5964","source_version":6,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:10:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/Xj2p4BJXlxMZviC7phiC4YhUeM29I3ERFiZBUNJkEH58yTHPviS7SHcAszhaEgUgjBQWs6Zk+q/3lRp73YAAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T12:22:09.196297Z"},"content_sha256":"2c1be2be5ef30e2dc18c8b8e32a35dd91a7bab87270cac0e6b730d9915552ef6","schema_version":"1.0","event_id":"sha256:2c1be2be5ef30e2dc18c8b8e32a35dd91a7bab87270cac0e6b730d9915552ef6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:QVCHD3WXNPFPCM5BAK5SSOIGHW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On a regular modified Schwarzschild spacetime","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-th"],"primary_cat":"gr-qc","authors_text":"Hristu Culetu","submitted_at":"2013-05-25T19:50:13Z","abstract_excerpt":"A modified version of the Schwarzschild geometry is proposed. The source of curvature comes from an anisotropic fluid with $p_{r} = -\\rho$ and fluctuating tangential pressures. The event horizon has zero surface gravity but the invariant acceleration of a static observer is finite there. The Tolman - Komar energy of the gravitational fluid changes sign on the horizon, equals the black hole mass at infinity and is vanishing at $r = 0$. There is a nonzero surface stress tensor on the horizon due to a jump of the extrinsic curvature. Near-horizon geometry resembles the Robinson - Bertotti metric "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1305.5964","kind":"arxiv","version":6},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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":"2026-05-18T03:10:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pTSYpVvoKO12wXsiDSuugheDEtUMl8wYFBKDIJgLPFB/bD1ELg9LWDA02YI6eosrfWi6iid1PDd3kHbWXdT0Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T12:22:09.196665Z"},"content_sha256":"a42bd0bf60831414676a6b5cad1e2212c2ea27409de33055c6a4b3ce47cd11be","schema_version":"1.0","event_id":"sha256:a42bd0bf60831414676a6b5cad1e2212c2ea27409de33055c6a4b3ce47cd11be"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QVCHD3WXNPFPCM5BAK5SSOIGHW/bundle.json","state_url":"https://pith.science/pith/QVCHD3WXNPFPCM5BAK5SSOIGHW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QVCHD3WXNPFPCM5BAK5SSOIGHW/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":"2026-05-20T12:22:09Z","links":{"resolver":"https://pith.science/pith/QVCHD3WXNPFPCM5BAK5SSOIGHW","bundle":"https://pith.science/pith/QVCHD3WXNPFPCM5BAK5SSOIGHW/bundle.json","state":"https://pith.science/pith/QVCHD3WXNPFPCM5BAK5SSOIGHW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QVCHD3WXNPFPCM5BAK5SSOIGHW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:QVCHD3WXNPFPCM5BAK5SSOIGHW","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":"5f1c4b8f6e03449d5bd28b596ddbf2ad780e43a60e309e2636c6b6543aa83e02","cross_cats_sorted":["hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-05-25T19:50:13Z","title_canon_sha256":"c5f2d5fe8c82c90a1b05f47dc2a2a910ab9a4c7d611dfa972ddd3a99ddc2d010"},"schema_version":"1.0","source":{"id":"1305.5964","kind":"arxiv","version":6}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1305.5964","created_at":"2026-05-18T03:10:57Z"},{"alias_kind":"arxiv_version","alias_value":"1305.5964v6","created_at":"2026-05-18T03:10:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1305.5964","created_at":"2026-05-18T03:10:57Z"},{"alias_kind":"pith_short_12","alias_value":"QVCHD3WXNPFP","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_16","alias_value":"QVCHD3WXNPFPCM5B","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_8","alias_value":"QVCHD3WX","created_at":"2026-05-18T12:27:57Z"}],"graph_snapshots":[{"event_id":"sha256:a42bd0bf60831414676a6b5cad1e2212c2ea27409de33055c6a4b3ce47cd11be","target":"graph","created_at":"2026-05-18T03:10:57Z","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":"A modified version of the Schwarzschild geometry is proposed. The source of curvature comes from an anisotropic fluid with $p_{r} = -\\rho$ and fluctuating tangential pressures. The event horizon has zero surface gravity but the invariant acceleration of a static observer is finite there. The Tolman - Komar energy of the gravitational fluid changes sign on the horizon, equals the black hole mass at infinity and is vanishing at $r = 0$. There is a nonzero surface stress tensor on the horizon due to a jump of the extrinsic curvature. Near-horizon geometry resembles the Robinson - Bertotti metric ","authors_text":"Hristu Culetu","cross_cats":["hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-05-25T19:50:13Z","title":"On a regular modified Schwarzschild spacetime"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1305.5964","kind":"arxiv","version":6},"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":"sha256:2c1be2be5ef30e2dc18c8b8e32a35dd91a7bab87270cac0e6b730d9915552ef6","target":"record","created_at":"2026-05-18T03:10:57Z","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":"5f1c4b8f6e03449d5bd28b596ddbf2ad780e43a60e309e2636c6b6543aa83e02","cross_cats_sorted":["hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-05-25T19:50:13Z","title_canon_sha256":"c5f2d5fe8c82c90a1b05f47dc2a2a910ab9a4c7d611dfa972ddd3a99ddc2d010"},"schema_version":"1.0","source":{"id":"1305.5964","kind":"arxiv","version":6}},"canonical_sha256":"854471eed76bcaf133a102bb2939063da2215153b4c71172eed9bcaf127eedbc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"854471eed76bcaf133a102bb2939063da2215153b4c71172eed9bcaf127eedbc","first_computed_at":"2026-05-18T03:10:57.948559Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:10:57.948559Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hePt+zxNrRoISd+LZWDEvWIwI6+qdqJbC5LqJJlMCfk9e2dt556QoKrQHRC1djsbl75buWYhU56j8ZQ5rUbUDA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:10:57.949267Z","signed_message":"canonical_sha256_bytes"},"source_id":"1305.5964","source_kind":"arxiv","source_version":6}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2c1be2be5ef30e2dc18c8b8e32a35dd91a7bab87270cac0e6b730d9915552ef6","sha256:a42bd0bf60831414676a6b5cad1e2212c2ea27409de33055c6a4b3ce47cd11be"],"state_sha256":"d3742e9813ab18a99699567bf8573a53473b8442cacb4705f032c5ddd5e0caf2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vHQTFwN9lCtgSJfPFndys383jn0JOFLfZGlHyctyKWT32qSfkWTHY9Txxp9OvXa620VyyMtTZHoY0VVBj72HDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-20T12:22:09.199617Z","bundle_sha256":"bc324a4e29010f2beaf7a52e9cdd49d799589ef789ffc1d2f320fbd6476a59ff"}}