{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:6VGF4KPSHWG3ERHM7UX5NRQNJB","short_pith_number":"pith:6VGF4KPS","canonical_record":{"source":{"id":"1010.4742","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-10-22T15:35:47Z","cross_cats_sorted":[],"title_canon_sha256":"161cf64d0324fcc4d11bb3ad001da917e2d5694b0df6da7ec1b0d32148a1798d","abstract_canon_sha256":"df17b285c8015ed1a064281bcf6b021fbf50c2dd5ce27e6cfb915538b9a84710"},"schema_version":"1.0"},"canonical_sha256":"f54c5e29f23d8db244ecfd2fd6c60d485eb3254799b80645d481d4664bb23760","source":{"kind":"arxiv","id":"1010.4742","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1010.4742","created_at":"2026-05-18T02:04:59Z"},{"alias_kind":"arxiv_version","alias_value":"1010.4742v1","created_at":"2026-05-18T02:04:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1010.4742","created_at":"2026-05-18T02:04:59Z"},{"alias_kind":"pith_short_12","alias_value":"6VGF4KPSHWG3","created_at":"2026-05-18T12:26:04Z"},{"alias_kind":"pith_short_16","alias_value":"6VGF4KPSHWG3ERHM","created_at":"2026-05-18T12:26:04Z"},{"alias_kind":"pith_short_8","alias_value":"6VGF4KPS","created_at":"2026-05-18T12:26:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:6VGF4KPSHWG3ERHM7UX5NRQNJB","target":"record","payload":{"canonical_record":{"source":{"id":"1010.4742","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-10-22T15:35:47Z","cross_cats_sorted":[],"title_canon_sha256":"161cf64d0324fcc4d11bb3ad001da917e2d5694b0df6da7ec1b0d32148a1798d","abstract_canon_sha256":"df17b285c8015ed1a064281bcf6b021fbf50c2dd5ce27e6cfb915538b9a84710"},"schema_version":"1.0"},"canonical_sha256":"f54c5e29f23d8db244ecfd2fd6c60d485eb3254799b80645d481d4664bb23760","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:04:59.515424Z","signature_b64":"++HBQ6RbWlfP/PtqKDSOtZdhoaKgntZ/vr2ufB3w1NlzrKGPON12Yzj29eHDcLrdojxSt3uaL7FdiT6mrngMCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f54c5e29f23d8db244ecfd2fd6c60d485eb3254799b80645d481d4664bb23760","last_reissued_at":"2026-05-18T02:04:59.514705Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:04:59.514705Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1010.4742","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":"2026-05-18T02:04:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"R78vr62aSxMJJ+70RTQ/vQCrlGcu2Vzx/Bcms37eKunE9UvcD7T/FgR1t+IcNqQggzqXCBEXqS+G7tK3E7TbDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T20:40:35.200706Z"},"content_sha256":"69986778534d7aa802f74b5aa7fad863ddcce128d799e96961d218585d3856c5","schema_version":"1.0","event_id":"sha256:69986778534d7aa802f74b5aa7fad863ddcce128d799e96961d218585d3856c5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:6VGF4KPSHWG3ERHM7UX5NRQNJB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The intriguing evolutionary history of the massive black hole X-ray binary M33 X-7","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Bart Willems, Evert Glebbeek, Francesca Valsecchi, Jerome A. Orosz, Jifeng Liu, Tassos Fragos, Vassiliki Kalogera, Will M. Farr","submitted_at":"2010-10-22T15:35:47Z","abstract_excerpt":"Black hole (BH) X-ray binaries (XRBs) are X-ray luminous binary systems comprising a BH accreting matter from a companion star. Understanding their origins sheds light on the still not well understood physics of BH formation. M33 X-7 hosts one of the most massive stellar-mass BH among all XRBs known to date, a 15.65 Msun BH orbiting a 70 Msun companion star in a 3.45 day orbit. The high masses of the two components and the tight orbit relative to the large H-rich stellar component challenge our understanding of the typically invoked BH-XRBs formation channels. The measured underluminosity of t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1010.4742","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":"2026-05-18T02:04:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OzQURGRkABUpD6+aJ+4DvFV+/kWpy72mcODENxNqFMccHY/UWEjMhxBTdo6uKtxql6Az1vOtU/GwCxiejeQzBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T20:40:35.201056Z"},"content_sha256":"49576f89da73e65ef38a25083bcf2ae015f669feb59805acd7d20739fc4ea03f","schema_version":"1.0","event_id":"sha256:49576f89da73e65ef38a25083bcf2ae015f669feb59805acd7d20739fc4ea03f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6VGF4KPSHWG3ERHM7UX5NRQNJB/bundle.json","state_url":"https://pith.science/pith/6VGF4KPSHWG3ERHM7UX5NRQNJB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6VGF4KPSHWG3ERHM7UX5NRQNJB/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":"2026-06-03T20:40:35Z","links":{"resolver":"https://pith.science/pith/6VGF4KPSHWG3ERHM7UX5NRQNJB","bundle":"https://pith.science/pith/6VGF4KPSHWG3ERHM7UX5NRQNJB/bundle.json","state":"https://pith.science/pith/6VGF4KPSHWG3ERHM7UX5NRQNJB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6VGF4KPSHWG3ERHM7UX5NRQNJB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:6VGF4KPSHWG3ERHM7UX5NRQNJB","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":"df17b285c8015ed1a064281bcf6b021fbf50c2dd5ce27e6cfb915538b9a84710","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-10-22T15:35:47Z","title_canon_sha256":"161cf64d0324fcc4d11bb3ad001da917e2d5694b0df6da7ec1b0d32148a1798d"},"schema_version":"1.0","source":{"id":"1010.4742","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1010.4742","created_at":"2026-05-18T02:04:59Z"},{"alias_kind":"arxiv_version","alias_value":"1010.4742v1","created_at":"2026-05-18T02:04:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1010.4742","created_at":"2026-05-18T02:04:59Z"},{"alias_kind":"pith_short_12","alias_value":"6VGF4KPSHWG3","created_at":"2026-05-18T12:26:04Z"},{"alias_kind":"pith_short_16","alias_value":"6VGF4KPSHWG3ERHM","created_at":"2026-05-18T12:26:04Z"},{"alias_kind":"pith_short_8","alias_value":"6VGF4KPS","created_at":"2026-05-18T12:26:04Z"}],"graph_snapshots":[{"event_id":"sha256:49576f89da73e65ef38a25083bcf2ae015f669feb59805acd7d20739fc4ea03f","target":"graph","created_at":"2026-05-18T02:04:59Z","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":"Black hole (BH) X-ray binaries (XRBs) are X-ray luminous binary systems comprising a BH accreting matter from a companion star. Understanding their origins sheds light on the still not well understood physics of BH formation. M33 X-7 hosts one of the most massive stellar-mass BH among all XRBs known to date, a 15.65 Msun BH orbiting a 70 Msun companion star in a 3.45 day orbit. The high masses of the two components and the tight orbit relative to the large H-rich stellar component challenge our understanding of the typically invoked BH-XRBs formation channels. The measured underluminosity of t","authors_text":"Bart Willems, Evert Glebbeek, Francesca Valsecchi, Jerome A. Orosz, Jifeng Liu, Tassos Fragos, Vassiliki Kalogera, Will M. Farr","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-10-22T15:35:47Z","title":"The intriguing evolutionary history of the massive black hole X-ray binary M33 X-7"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1010.4742","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":"sha256:69986778534d7aa802f74b5aa7fad863ddcce128d799e96961d218585d3856c5","target":"record","created_at":"2026-05-18T02:04:59Z","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":"df17b285c8015ed1a064281bcf6b021fbf50c2dd5ce27e6cfb915538b9a84710","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-10-22T15:35:47Z","title_canon_sha256":"161cf64d0324fcc4d11bb3ad001da917e2d5694b0df6da7ec1b0d32148a1798d"},"schema_version":"1.0","source":{"id":"1010.4742","kind":"arxiv","version":1}},"canonical_sha256":"f54c5e29f23d8db244ecfd2fd6c60d485eb3254799b80645d481d4664bb23760","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f54c5e29f23d8db244ecfd2fd6c60d485eb3254799b80645d481d4664bb23760","first_computed_at":"2026-05-18T02:04:59.514705Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:04:59.514705Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"++HBQ6RbWlfP/PtqKDSOtZdhoaKgntZ/vr2ufB3w1NlzrKGPON12Yzj29eHDcLrdojxSt3uaL7FdiT6mrngMCw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:04:59.515424Z","signed_message":"canonical_sha256_bytes"},"source_id":"1010.4742","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:69986778534d7aa802f74b5aa7fad863ddcce128d799e96961d218585d3856c5","sha256:49576f89da73e65ef38a25083bcf2ae015f669feb59805acd7d20739fc4ea03f"],"state_sha256":"3d0cfad92e2ca9d93ced58ad77ddb194bc9f96857d53deefe8cb756cc339cd0d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TiZi5lJW6JysXz8f5rK2LyVlFaMG7TIXA2FLZdWhpJDzLsqgtgo0NYr0vjq+oRXJx2NELjzYyBR4sOBlY4e4DA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T20:40:35.203091Z","bundle_sha256":"c5261f857481f0167691a58a80cab02c1264e3ae89e7574469454527402178a5"}}