{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:EOCMRQVYUZKIWTGKTUYXEVJSHZ","short_pith_number":"pith:EOCMRQVY","canonical_record":{"source":{"id":"2311.09007","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2023-11-15T14:50:08Z","cross_cats_sorted":[],"title_canon_sha256":"8bc38eabd95875908a18b5bd5dd7682a7a37098cdb29a2603ae935d12d34c0b7","abstract_canon_sha256":"1dd967dd78ee2a5be35496bd6087632ac6d44098258076c46117c271f94346fe"},"schema_version":"1.0"},"canonical_sha256":"2384c8c2b8a6548b4cca9d317255323e75c461af37f4b9ce33978ed68f0c3423","source":{"kind":"arxiv","id":"2311.09007","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2311.09007","created_at":"2026-07-05T07:30:56Z"},{"alias_kind":"arxiv_version","alias_value":"2311.09007v2","created_at":"2026-07-05T07:30:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2311.09007","created_at":"2026-07-05T07:30:56Z"},{"alias_kind":"pith_short_12","alias_value":"EOCMRQVYUZKI","created_at":"2026-07-05T07:30:56Z"},{"alias_kind":"pith_short_16","alias_value":"EOCMRQVYUZKIWTGK","created_at":"2026-07-05T07:30:56Z"},{"alias_kind":"pith_short_8","alias_value":"EOCMRQVY","created_at":"2026-07-05T07:30:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:EOCMRQVYUZKIWTGKTUYXEVJSHZ","target":"record","payload":{"canonical_record":{"source":{"id":"2311.09007","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2023-11-15T14:50:08Z","cross_cats_sorted":[],"title_canon_sha256":"8bc38eabd95875908a18b5bd5dd7682a7a37098cdb29a2603ae935d12d34c0b7","abstract_canon_sha256":"1dd967dd78ee2a5be35496bd6087632ac6d44098258076c46117c271f94346fe"},"schema_version":"1.0"},"canonical_sha256":"2384c8c2b8a6548b4cca9d317255323e75c461af37f4b9ce33978ed68f0c3423","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:30:56.660884Z","signature_b64":"Ie77kuniVQpXi+IehFdm6ZIGdB/Uff8sXM5g+1/98F7LQGcZLe+J3YjxanBdsIJgdOCfuZPXJ8UrsbkkXD7dAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2384c8c2b8a6548b4cca9d317255323e75c461af37f4b9ce33978ed68f0c3423","last_reissued_at":"2026-07-05T07:30:56.660522Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:30:56.660522Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2311.09007","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":"2026-07-05T07:30:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KxPTzHdjDGOk9Thyq/5m4B/ZVIVz2vcFB306f5Md6IUjwCooEoZnEqnWOH5qjeLiHTN8+gXXpPCpU1dhdIeRDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T04:55:38.241593Z"},"content_sha256":"00a5cb4130e909deed6afcb5eac857b3bdfe4d03e5c9b40d3c255bfc0bed37f5","schema_version":"1.0","event_id":"sha256:00a5cb4130e909deed6afcb5eac857b3bdfe4d03e5c9b40d3c255bfc0bed37f5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:EOCMRQVYUZKIWTGKTUYXEVJSHZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Determining cosmological growth parameter for stellar-mass black holes","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Ema Mlinar, Toma\\v{z} Zwitter","submitted_at":"2023-11-15T14:50:08Z","abstract_excerpt":"It has recently been suggested that black holes (BHs) may grow with time, so that their mass is proportional to the cosmological scale factor to the power $n$, with suggested values $n \\approx 3$ for supermassive BHs in elliptical galaxies. Here we test these predictions with stellar mass BHs in X-ray binaries using their masses and ages. We perform two sets of tests to assess the compatible values of $n$. First, we assume that no compact object grows over the Tolman-Oppenheimer-Volkof limit which marks the borderline between neutron stars and BHs. We show that half of BHs would be born with a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2311.09007","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/2311.09007/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":"2026-07-05T07:30:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Rf8A1ZTir7or0ZkcBgTu3zJQXIN0psngYXsd7jiWElDcZmiijNYp4rqPKfqLLNQHjkTPWUodGKZO4HfIDXlRBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T04:55:38.242110Z"},"content_sha256":"46fce384a3f29cda1003728c412ceedacbcf884efa12618b9523689c8a6ca114","schema_version":"1.0","event_id":"sha256:46fce384a3f29cda1003728c412ceedacbcf884efa12618b9523689c8a6ca114"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EOCMRQVYUZKIWTGKTUYXEVJSHZ/bundle.json","state_url":"https://pith.science/pith/EOCMRQVYUZKIWTGKTUYXEVJSHZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EOCMRQVYUZKIWTGKTUYXEVJSHZ/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":"2026-08-04T04:55:38Z","links":{"resolver":"https://pith.science/pith/EOCMRQVYUZKIWTGKTUYXEVJSHZ","bundle":"https://pith.science/pith/EOCMRQVYUZKIWTGKTUYXEVJSHZ/bundle.json","state":"https://pith.science/pith/EOCMRQVYUZKIWTGKTUYXEVJSHZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EOCMRQVYUZKIWTGKTUYXEVJSHZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:EOCMRQVYUZKIWTGKTUYXEVJSHZ","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":"1dd967dd78ee2a5be35496bd6087632ac6d44098258076c46117c271f94346fe","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2023-11-15T14:50:08Z","title_canon_sha256":"8bc38eabd95875908a18b5bd5dd7682a7a37098cdb29a2603ae935d12d34c0b7"},"schema_version":"1.0","source":{"id":"2311.09007","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2311.09007","created_at":"2026-07-05T07:30:56Z"},{"alias_kind":"arxiv_version","alias_value":"2311.09007v2","created_at":"2026-07-05T07:30:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2311.09007","created_at":"2026-07-05T07:30:56Z"},{"alias_kind":"pith_short_12","alias_value":"EOCMRQVYUZKI","created_at":"2026-07-05T07:30:56Z"},{"alias_kind":"pith_short_16","alias_value":"EOCMRQVYUZKIWTGK","created_at":"2026-07-05T07:30:56Z"},{"alias_kind":"pith_short_8","alias_value":"EOCMRQVY","created_at":"2026-07-05T07:30:56Z"}],"graph_snapshots":[{"event_id":"sha256:46fce384a3f29cda1003728c412ceedacbcf884efa12618b9523689c8a6ca114","target":"graph","created_at":"2026-07-05T07:30:56Z","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/2311.09007/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"It has recently been suggested that black holes (BHs) may grow with time, so that their mass is proportional to the cosmological scale factor to the power $n$, with suggested values $n \\approx 3$ for supermassive BHs in elliptical galaxies. Here we test these predictions with stellar mass BHs in X-ray binaries using their masses and ages. We perform two sets of tests to assess the compatible values of $n$. First, we assume that no compact object grows over the Tolman-Oppenheimer-Volkof limit which marks the borderline between neutron stars and BHs. We show that half of BHs would be born with a","authors_text":"Ema Mlinar, Toma\\v{z} Zwitter","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2023-11-15T14:50:08Z","title":"Determining cosmological growth parameter for stellar-mass black holes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2311.09007","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":"sha256:00a5cb4130e909deed6afcb5eac857b3bdfe4d03e5c9b40d3c255bfc0bed37f5","target":"record","created_at":"2026-07-05T07:30:56Z","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":"1dd967dd78ee2a5be35496bd6087632ac6d44098258076c46117c271f94346fe","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2023-11-15T14:50:08Z","title_canon_sha256":"8bc38eabd95875908a18b5bd5dd7682a7a37098cdb29a2603ae935d12d34c0b7"},"schema_version":"1.0","source":{"id":"2311.09007","kind":"arxiv","version":2}},"canonical_sha256":"2384c8c2b8a6548b4cca9d317255323e75c461af37f4b9ce33978ed68f0c3423","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2384c8c2b8a6548b4cca9d317255323e75c461af37f4b9ce33978ed68f0c3423","first_computed_at":"2026-07-05T07:30:56.660522Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:30:56.660522Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Ie77kuniVQpXi+IehFdm6ZIGdB/Uff8sXM5g+1/98F7LQGcZLe+J3YjxanBdsIJgdOCfuZPXJ8UrsbkkXD7dAw==","signature_status":"signed_v1","signed_at":"2026-07-05T07:30:56.660884Z","signed_message":"canonical_sha256_bytes"},"source_id":"2311.09007","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:00a5cb4130e909deed6afcb5eac857b3bdfe4d03e5c9b40d3c255bfc0bed37f5","sha256:46fce384a3f29cda1003728c412ceedacbcf884efa12618b9523689c8a6ca114"],"state_sha256":"7b8ea43c4a110ee8b9f40ceb118429f1f5d55950086eb391b67d026b0dfa2488"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gGRhfL5Jv+1zq1T8pEBmlkPW1cdige75lwob7QmxJgMWsONZeMXJxq8KO3AnhNzr+pRfnr8SL6QuldZMbq+QCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T04:55:38.246839Z","bundle_sha256":"9461f4b997c1e91016dd68cdf3f3862d0ec5df43f04aafc78d98503f1a513c1e"}}