{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:IZVJ25OQDDPEV4C4VCWEKF5G6E","short_pith_number":"pith:IZVJ25OQ","canonical_record":{"source":{"id":"1805.01022","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-05-02T21:06:02Z","cross_cats_sorted":[],"title_canon_sha256":"b58b9075821e23c740195529c0df73f78724cc2ca3d5039c41427c9e94d2a71d","abstract_canon_sha256":"d60a043ff18917e68994e3cde054db2fbf16d8752e50f2b24977382d7276ed66"},"schema_version":"1.0"},"canonical_sha256":"466a9d75d018de4af05ca8ac4517a6f126303ee55bb582fcdab8f6654465dcd1","source":{"kind":"arxiv","id":"1805.01022","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.01022","created_at":"2026-05-18T00:16:52Z"},{"alias_kind":"arxiv_version","alias_value":"1805.01022v1","created_at":"2026-05-18T00:16:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.01022","created_at":"2026-05-18T00:16:52Z"},{"alias_kind":"pith_short_12","alias_value":"IZVJ25OQDDPE","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_16","alias_value":"IZVJ25OQDDPEV4C4","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_8","alias_value":"IZVJ25OQ","created_at":"2026-05-18T12:32:31Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:IZVJ25OQDDPEV4C4VCWEKF5G6E","target":"record","payload":{"canonical_record":{"source":{"id":"1805.01022","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-05-02T21:06:02Z","cross_cats_sorted":[],"title_canon_sha256":"b58b9075821e23c740195529c0df73f78724cc2ca3d5039c41427c9e94d2a71d","abstract_canon_sha256":"d60a043ff18917e68994e3cde054db2fbf16d8752e50f2b24977382d7276ed66"},"schema_version":"1.0"},"canonical_sha256":"466a9d75d018de4af05ca8ac4517a6f126303ee55bb582fcdab8f6654465dcd1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:16:52.853126Z","signature_b64":"TBqnlmMM1YlbuKg8UCwUGCY9AxrHlyK948SdbnOt0r+ApB6oJwYRJxppXE2/G790giXzRdXwYM0ZiB3wPYlpAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"466a9d75d018de4af05ca8ac4517a6f126303ee55bb582fcdab8f6654465dcd1","last_reissued_at":"2026-05-18T00:16:52.852468Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:16:52.852468Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1805.01022","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:16:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"m4h/8hSbS5GJ7mrFfv8WxQMqOxqsN7QX5D9gj5uhx6iA8BGgEuS6NnXSBgPBAPLp2pmKCjmMiIr/LVKJ2Rx1CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T15:11:45.283976Z"},"content_sha256":"00e8e36b010be222e044dcd0580c22daee4626d4d6d6e69e53019c06a7a70056","schema_version":"1.0","event_id":"sha256:00e8e36b010be222e044dcd0580c22daee4626d4d6d6e69e53019c06a7a70056"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:IZVJ25OQDDPEV4C4VCWEKF5G6E","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Surrounded Vaidya black holes: apparent horizon properties","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"F. Darabi, Y. Heydarzade","submitted_at":"2018-05-02T21:06:02Z","abstract_excerpt":"We study the thermodynamical features and dynamical evolutions of various apparent horizons associated with the Vaidya evaporating black hole surrounded by the cosmological fields of dust, radiation, quintessence, cosmological constant-like and phantom. In this regard, we address in detail how do these surrounding fields contribute to the characteristic features of a surrounded dynamical black hole in comparison to a dynamical black hole in an empty background."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.01022","kind":"arxiv","version":1},"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":"2026-05-18T00:16:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"t4uSCO0xH83VturjhudDoE3vOrsgRj8fP8pSAGzmzNqMrQuBTToxK7pqnF9cyj310G6/wmTcqfIgLzlxNcozBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T15:11:45.284691Z"},"content_sha256":"3e84a527b147a426f11657ddf5e9d05c37713156e6d31645125835d01e2fe345","schema_version":"1.0","event_id":"sha256:3e84a527b147a426f11657ddf5e9d05c37713156e6d31645125835d01e2fe345"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IZVJ25OQDDPEV4C4VCWEKF5G6E/bundle.json","state_url":"https://pith.science/pith/IZVJ25OQDDPEV4C4VCWEKF5G6E/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IZVJ25OQDDPEV4C4VCWEKF5G6E/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":"2026-05-31T15:11:45Z","links":{"resolver":"https://pith.science/pith/IZVJ25OQDDPEV4C4VCWEKF5G6E","bundle":"https://pith.science/pith/IZVJ25OQDDPEV4C4VCWEKF5G6E/bundle.json","state":"https://pith.science/pith/IZVJ25OQDDPEV4C4VCWEKF5G6E/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IZVJ25OQDDPEV4C4VCWEKF5G6E/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:IZVJ25OQDDPEV4C4VCWEKF5G6E","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":"d60a043ff18917e68994e3cde054db2fbf16d8752e50f2b24977382d7276ed66","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-05-02T21:06:02Z","title_canon_sha256":"b58b9075821e23c740195529c0df73f78724cc2ca3d5039c41427c9e94d2a71d"},"schema_version":"1.0","source":{"id":"1805.01022","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.01022","created_at":"2026-05-18T00:16:52Z"},{"alias_kind":"arxiv_version","alias_value":"1805.01022v1","created_at":"2026-05-18T00:16:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.01022","created_at":"2026-05-18T00:16:52Z"},{"alias_kind":"pith_short_12","alias_value":"IZVJ25OQDDPE","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_16","alias_value":"IZVJ25OQDDPEV4C4","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_8","alias_value":"IZVJ25OQ","created_at":"2026-05-18T12:32:31Z"}],"graph_snapshots":[{"event_id":"sha256:3e84a527b147a426f11657ddf5e9d05c37713156e6d31645125835d01e2fe345","target":"graph","created_at":"2026-05-18T00:16:52Z","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":"We study the thermodynamical features and dynamical evolutions of various apparent horizons associated with the Vaidya evaporating black hole surrounded by the cosmological fields of dust, radiation, quintessence, cosmological constant-like and phantom. In this regard, we address in detail how do these surrounding fields contribute to the characteristic features of a surrounded dynamical black hole in comparison to a dynamical black hole in an empty background.","authors_text":"F. Darabi, Y. Heydarzade","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-05-02T21:06:02Z","title":"Surrounded Vaidya black holes: apparent horizon properties"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.01022","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":"sha256:00e8e36b010be222e044dcd0580c22daee4626d4d6d6e69e53019c06a7a70056","target":"record","created_at":"2026-05-18T00:16:52Z","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":"d60a043ff18917e68994e3cde054db2fbf16d8752e50f2b24977382d7276ed66","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-05-02T21:06:02Z","title_canon_sha256":"b58b9075821e23c740195529c0df73f78724cc2ca3d5039c41427c9e94d2a71d"},"schema_version":"1.0","source":{"id":"1805.01022","kind":"arxiv","version":1}},"canonical_sha256":"466a9d75d018de4af05ca8ac4517a6f126303ee55bb582fcdab8f6654465dcd1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"466a9d75d018de4af05ca8ac4517a6f126303ee55bb582fcdab8f6654465dcd1","first_computed_at":"2026-05-18T00:16:52.852468Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:16:52.852468Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"TBqnlmMM1YlbuKg8UCwUGCY9AxrHlyK948SdbnOt0r+ApB6oJwYRJxppXE2/G790giXzRdXwYM0ZiB3wPYlpAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:16:52.853126Z","signed_message":"canonical_sha256_bytes"},"source_id":"1805.01022","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:00e8e36b010be222e044dcd0580c22daee4626d4d6d6e69e53019c06a7a70056","sha256:3e84a527b147a426f11657ddf5e9d05c37713156e6d31645125835d01e2fe345"],"state_sha256":"439a13f338dc56c0655c78a4530c2c52bccb20f65a8afb63f1943559229ec18d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"02oKRpL39IJgd5tl1BHzd6A1sMUHxQtPallnaRpdl4LpOMQKYWihZaum82eaTRXhsN6f0ANjhsoxRKaA3fQ2CQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T15:11:45.288901Z","bundle_sha256":"d7e70ef7549b226c968e767cbb75e9b2fe17f4fae25ba77d47c9cf682fce8223"}}