{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:IQBYI5QQW5IEGI2SV2WRGVTWT3","short_pith_number":"pith:IQBYI5QQ","canonical_record":{"source":{"id":"1108.0056","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-07-30T10:40:49Z","cross_cats_sorted":[],"title_canon_sha256":"53181159d5e46459df4d7bb38a5e80556c6385f2aacd13c7d99aa80775ae2577","abstract_canon_sha256":"64209f1a30a75b1981fcdd4d109d4dc176c3dfa6779351d55f98c0c66f3289d5"},"schema_version":"1.0"},"canonical_sha256":"4403847610b750432352aead1356769eff1a5405c5e7149f6a6cc5322141659f","source":{"kind":"arxiv","id":"1108.0056","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1108.0056","created_at":"2026-05-18T04:16:31Z"},{"alias_kind":"arxiv_version","alias_value":"1108.0056v1","created_at":"2026-05-18T04:16:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1108.0056","created_at":"2026-05-18T04:16:31Z"},{"alias_kind":"pith_short_12","alias_value":"IQBYI5QQW5IE","created_at":"2026-05-18T12:26:32Z"},{"alias_kind":"pith_short_16","alias_value":"IQBYI5QQW5IEGI2S","created_at":"2026-05-18T12:26:32Z"},{"alias_kind":"pith_short_8","alias_value":"IQBYI5QQ","created_at":"2026-05-18T12:26:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:IQBYI5QQW5IEGI2SV2WRGVTWT3","target":"record","payload":{"canonical_record":{"source":{"id":"1108.0056","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-07-30T10:40:49Z","cross_cats_sorted":[],"title_canon_sha256":"53181159d5e46459df4d7bb38a5e80556c6385f2aacd13c7d99aa80775ae2577","abstract_canon_sha256":"64209f1a30a75b1981fcdd4d109d4dc176c3dfa6779351d55f98c0c66f3289d5"},"schema_version":"1.0"},"canonical_sha256":"4403847610b750432352aead1356769eff1a5405c5e7149f6a6cc5322141659f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:16:31.763944Z","signature_b64":"dYbnaT0dlxpXyMzEdedTOAw/GwnGrUqGK/ye3DzDdi3ikB+SxDNMeY0El0Ih6aGWd0A6Rf25R72ojxUJ6EEPAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4403847610b750432352aead1356769eff1a5405c5e7149f6a6cc5322141659f","last_reissued_at":"2026-05-18T04:16:31.763569Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:16:31.763569Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1108.0056","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":"2026-05-18T04:16:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TGzOCmbHH8m/2u+w/rM7zYcpYW72TYqYl5GDBIsZFgk8O670RMC7WLom3jgbM+IgUx/6+x35gsvaIDFmqt6JBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T05:23:54.033219Z"},"content_sha256":"6938aec6a9b5368eba0fddfe65e7ac4043e5e451bf8fd16ff0309ad389c9a5e7","schema_version":"1.0","event_id":"sha256:6938aec6a9b5368eba0fddfe65e7ac4043e5e451bf8fd16ff0309ad389c9a5e7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:IQBYI5QQW5IEGI2SV2WRGVTWT3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Black holes of intermediate masses in globular clusters: constraints on a spin of a black hole","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"M.Yu. Piotrovich, N.A. Shaht, S.D. Buliga, T.M. Natsvlishvili, V.I. Globina, Yu.N. Gnedin","submitted_at":"2011-07-30T10:40:49Z","abstract_excerpt":"In this paper we determined values of a spin of central black holes of the intermediate masses in globular clusters. For determination of value of a spin we used the known relation between the kinetic power of the relativistic jet and observable radio-luminosity of the region near to a central black hole, and our estimates have based on the known Blandford-Znajek mechanism. The value of a magnetic field strength near the event horizon of a black hole was derived via magnetic coupling mechanism. Accretion rate was derived using Bondi-Hoyle mechanism."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1108.0056","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":"2026-05-18T04:16:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bPkq3y/BleRemXD9cxaZTtDYm4KgdQrEzAWrsKU2F3kS0KG0C3lgvkdDw5pwljPNvKFHaVSuPkPtF4Zf9/ExBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T05:23:54.033601Z"},"content_sha256":"9dec343014d649bc529ac059445e371eb213dcde314b8eae92dd5293b212c608","schema_version":"1.0","event_id":"sha256:9dec343014d649bc529ac059445e371eb213dcde314b8eae92dd5293b212c608"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IQBYI5QQW5IEGI2SV2WRGVTWT3/bundle.json","state_url":"https://pith.science/pith/IQBYI5QQW5IEGI2SV2WRGVTWT3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IQBYI5QQW5IEGI2SV2WRGVTWT3/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":"2026-06-01T05:23:54Z","links":{"resolver":"https://pith.science/pith/IQBYI5QQW5IEGI2SV2WRGVTWT3","bundle":"https://pith.science/pith/IQBYI5QQW5IEGI2SV2WRGVTWT3/bundle.json","state":"https://pith.science/pith/IQBYI5QQW5IEGI2SV2WRGVTWT3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IQBYI5QQW5IEGI2SV2WRGVTWT3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:IQBYI5QQW5IEGI2SV2WRGVTWT3","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":"64209f1a30a75b1981fcdd4d109d4dc176c3dfa6779351d55f98c0c66f3289d5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-07-30T10:40:49Z","title_canon_sha256":"53181159d5e46459df4d7bb38a5e80556c6385f2aacd13c7d99aa80775ae2577"},"schema_version":"1.0","source":{"id":"1108.0056","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1108.0056","created_at":"2026-05-18T04:16:31Z"},{"alias_kind":"arxiv_version","alias_value":"1108.0056v1","created_at":"2026-05-18T04:16:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1108.0056","created_at":"2026-05-18T04:16:31Z"},{"alias_kind":"pith_short_12","alias_value":"IQBYI5QQW5IE","created_at":"2026-05-18T12:26:32Z"},{"alias_kind":"pith_short_16","alias_value":"IQBYI5QQW5IEGI2S","created_at":"2026-05-18T12:26:32Z"},{"alias_kind":"pith_short_8","alias_value":"IQBYI5QQ","created_at":"2026-05-18T12:26:32Z"}],"graph_snapshots":[{"event_id":"sha256:9dec343014d649bc529ac059445e371eb213dcde314b8eae92dd5293b212c608","target":"graph","created_at":"2026-05-18T04:16:31Z","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":"In this paper we determined values of a spin of central black holes of the intermediate masses in globular clusters. For determination of value of a spin we used the known relation between the kinetic power of the relativistic jet and observable radio-luminosity of the region near to a central black hole, and our estimates have based on the known Blandford-Znajek mechanism. The value of a magnetic field strength near the event horizon of a black hole was derived via magnetic coupling mechanism. Accretion rate was derived using Bondi-Hoyle mechanism.","authors_text":"M.Yu. Piotrovich, N.A. Shaht, S.D. Buliga, T.M. Natsvlishvili, V.I. Globina, Yu.N. Gnedin","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-07-30T10:40:49Z","title":"Black holes of intermediate masses in globular clusters: constraints on a spin of a black hole"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1108.0056","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":"sha256:6938aec6a9b5368eba0fddfe65e7ac4043e5e451bf8fd16ff0309ad389c9a5e7","target":"record","created_at":"2026-05-18T04:16:31Z","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":"64209f1a30a75b1981fcdd4d109d4dc176c3dfa6779351d55f98c0c66f3289d5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-07-30T10:40:49Z","title_canon_sha256":"53181159d5e46459df4d7bb38a5e80556c6385f2aacd13c7d99aa80775ae2577"},"schema_version":"1.0","source":{"id":"1108.0056","kind":"arxiv","version":1}},"canonical_sha256":"4403847610b750432352aead1356769eff1a5405c5e7149f6a6cc5322141659f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4403847610b750432352aead1356769eff1a5405c5e7149f6a6cc5322141659f","first_computed_at":"2026-05-18T04:16:31.763569Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:16:31.763569Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dYbnaT0dlxpXyMzEdedTOAw/GwnGrUqGK/ye3DzDdi3ikB+SxDNMeY0El0Ih6aGWd0A6Rf25R72ojxUJ6EEPAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:16:31.763944Z","signed_message":"canonical_sha256_bytes"},"source_id":"1108.0056","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6938aec6a9b5368eba0fddfe65e7ac4043e5e451bf8fd16ff0309ad389c9a5e7","sha256:9dec343014d649bc529ac059445e371eb213dcde314b8eae92dd5293b212c608"],"state_sha256":"806bf2f93e3fc44f5422c896347f6c1692502108205a11485c6fb7b375ec376d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TDSR5+CCLqx3isyqlxghReecKGp/9/6DaGM22M0Z2uBaFGDgKaHw2/3GIMVwmPrGJUlQP15lAt6fWkL7/tLXCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T05:23:54.035859Z","bundle_sha256":"0f52ba04904efad6f54dcc372ef44b0758a13412e8d9bab9b9c48510731c5547"}}