{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2010:6VGF4KPSHWG3ERHM7UX5NRQNJB","short_pith_number":"pith:6VGF4KPS","schema_version":"1.0","canonical_sha256":"f54c5e29f23d8db244ecfd2fd6c60d485eb3254799b80645d481d4664bb23760","source":{"kind":"arxiv","id":"1010.4742","version":1},"attestation_state":"computed","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"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"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"},"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"},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1010.4742","created_at":"2026-05-18T02:04:59.514818+00:00"},{"alias_kind":"arxiv_version","alias_value":"1010.4742v1","created_at":"2026-05-18T02:04:59.514818+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1010.4742","created_at":"2026-05-18T02:04:59.514818+00:00"},{"alias_kind":"pith_short_12","alias_value":"6VGF4KPSHWG3","created_at":"2026-05-18T12:26:04.259169+00:00"},{"alias_kind":"pith_short_16","alias_value":"6VGF4KPSHWG3ERHM","created_at":"2026-05-18T12:26:04.259169+00:00"},{"alias_kind":"pith_short_8","alias_value":"6VGF4KPS","created_at":"2026-05-18T12:26:04.259169+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/6VGF4KPSHWG3ERHM7UX5NRQNJB","json":"https://pith.science/pith/6VGF4KPSHWG3ERHM7UX5NRQNJB.json","graph_json":"https://pith.science/api/pith-number/6VGF4KPSHWG3ERHM7UX5NRQNJB/graph.json","events_json":"https://pith.science/api/pith-number/6VGF4KPSHWG3ERHM7UX5NRQNJB/events.json","paper":"https://pith.science/paper/6VGF4KPS"},"agent_actions":{"view_html":"https://pith.science/pith/6VGF4KPSHWG3ERHM7UX5NRQNJB","download_json":"https://pith.science/pith/6VGF4KPSHWG3ERHM7UX5NRQNJB.json","view_paper":"https://pith.science/paper/6VGF4KPS","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1010.4742&json=true","fetch_graph":"https://pith.science/api/pith-number/6VGF4KPSHWG3ERHM7UX5NRQNJB/graph.json","fetch_events":"https://pith.science/api/pith-number/6VGF4KPSHWG3ERHM7UX5NRQNJB/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/6VGF4KPSHWG3ERHM7UX5NRQNJB/action/timestamp_anchor","attest_storage":"https://pith.science/pith/6VGF4KPSHWG3ERHM7UX5NRQNJB/action/storage_attestation","attest_author":"https://pith.science/pith/6VGF4KPSHWG3ERHM7UX5NRQNJB/action/author_attestation","sign_citation":"https://pith.science/pith/6VGF4KPSHWG3ERHM7UX5NRQNJB/action/citation_signature","submit_replication":"https://pith.science/pith/6VGF4KPSHWG3ERHM7UX5NRQNJB/action/replication_record"}},"created_at":"2026-05-18T02:04:59.514818+00:00","updated_at":"2026-05-18T02:04:59.514818+00:00"}