{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:YV3QSDUXFCPJSGQH7BQ2DJU26O","short_pith_number":"pith:YV3QSDUX","canonical_record":{"source":{"id":"0904.3733","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-04-23T16:27:11Z","cross_cats_sorted":[],"title_canon_sha256":"9096883e7d93f45452cfa2bc9ccc88e29ca447a99350bf9d15db09b6d0743d97","abstract_canon_sha256":"6ef47123e18a68f540e8748e1560e6f94a3a6f2a46a7287d014a90bd55d586a4"},"schema_version":"1.0"},"canonical_sha256":"c577090e97289e991a07f861a1a69af3ab25cd1a268ff9acc4588575bf962d96","source":{"kind":"arxiv","id":"0904.3733","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0904.3733","created_at":"2026-05-18T02:34:59Z"},{"alias_kind":"arxiv_version","alias_value":"0904.3733v1","created_at":"2026-05-18T02:34:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0904.3733","created_at":"2026-05-18T02:34:59Z"},{"alias_kind":"pith_short_12","alias_value":"YV3QSDUXFCPJ","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_16","alias_value":"YV3QSDUXFCPJSGQH","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_8","alias_value":"YV3QSDUX","created_at":"2026-05-18T12:26:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:YV3QSDUXFCPJSGQH7BQ2DJU26O","target":"record","payload":{"canonical_record":{"source":{"id":"0904.3733","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-04-23T16:27:11Z","cross_cats_sorted":[],"title_canon_sha256":"9096883e7d93f45452cfa2bc9ccc88e29ca447a99350bf9d15db09b6d0743d97","abstract_canon_sha256":"6ef47123e18a68f540e8748e1560e6f94a3a6f2a46a7287d014a90bd55d586a4"},"schema_version":"1.0"},"canonical_sha256":"c577090e97289e991a07f861a1a69af3ab25cd1a268ff9acc4588575bf962d96","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:34:59.598699Z","signature_b64":"KJmToKNvuZ57cDcKGHrIZ3WEjUPIDzEGxIAAFckNSshUUAWcnX/8aBcIr335N14fomxQLLNQlyAaDF4bJTRzAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c577090e97289e991a07f861a1a69af3ab25cd1a268ff9acc4588575bf962d96","last_reissued_at":"2026-05-18T02:34:59.598237Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:34:59.598237Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0904.3733","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":"2026-05-18T02:34:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jMYtnMowFen0JW60Ee+M+SGja3JqHVV7GG60yxbAEJ4EqQ1CpsKjhmzk5Z7SQobzNA+HLvVxd/m38yRBG93uBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T01:22:16.459837Z"},"content_sha256":"95a631ba076ff4c25f6469d1f4f3f53c5aca2e1b0761d9f194bc17c86ac3e1ea","schema_version":"1.0","event_id":"sha256:95a631ba076ff4c25f6469d1f4f3f53c5aca2e1b0761d9f194bc17c86ac3e1ea"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:YV3QSDUXFCPJSGQH7BQ2DJU26O","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Evolutionary State of the Massive Interacting Binary BD+36 4063","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"D. R. Gies, R. A. Matson, S. J. Williams, W. Huang","submitted_at":"2009-04-23T16:27:11Z","abstract_excerpt":"We present a spectroscopic and photometric analysis of the remarkable massive binary system, BD +36 4063. We argue that the visible ON star is undergoing a rapid mass transfer episode that results in a thick and opaque disk that surrounds and renders invisible its massive companion. A comparison of the projected rotational velocity and the orbital semiamplitude of the visible star indicates a mass ratio near unity. Models for conservative mass transfer show that the equal mass state occurs at the point of minimum separation, and we argue that BD +36 4063 may represent the first system identifi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0904.3733","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":"2026-05-18T02:34:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fIJcyNAx1uPivCLlFUxzTUIZTka11pqOFuCj+c4ivxl1dgkur8ZLos/ZnKVhKGhg0mbTetL4cklVc6e2vwXPDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T01:22:16.460200Z"},"content_sha256":"4c16623f8d9e98169850f8ac180e1dfc625966f969582aad57c292ec22a2119e","schema_version":"1.0","event_id":"sha256:4c16623f8d9e98169850f8ac180e1dfc625966f969582aad57c292ec22a2119e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YV3QSDUXFCPJSGQH7BQ2DJU26O/bundle.json","state_url":"https://pith.science/pith/YV3QSDUXFCPJSGQH7BQ2DJU26O/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YV3QSDUXFCPJSGQH7BQ2DJU26O/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":"2026-06-04T01:22:16Z","links":{"resolver":"https://pith.science/pith/YV3QSDUXFCPJSGQH7BQ2DJU26O","bundle":"https://pith.science/pith/YV3QSDUXFCPJSGQH7BQ2DJU26O/bundle.json","state":"https://pith.science/pith/YV3QSDUXFCPJSGQH7BQ2DJU26O/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YV3QSDUXFCPJSGQH7BQ2DJU26O/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:YV3QSDUXFCPJSGQH7BQ2DJU26O","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":"6ef47123e18a68f540e8748e1560e6f94a3a6f2a46a7287d014a90bd55d586a4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-04-23T16:27:11Z","title_canon_sha256":"9096883e7d93f45452cfa2bc9ccc88e29ca447a99350bf9d15db09b6d0743d97"},"schema_version":"1.0","source":{"id":"0904.3733","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0904.3733","created_at":"2026-05-18T02:34:59Z"},{"alias_kind":"arxiv_version","alias_value":"0904.3733v1","created_at":"2026-05-18T02:34:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0904.3733","created_at":"2026-05-18T02:34:59Z"},{"alias_kind":"pith_short_12","alias_value":"YV3QSDUXFCPJ","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_16","alias_value":"YV3QSDUXFCPJSGQH","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_8","alias_value":"YV3QSDUX","created_at":"2026-05-18T12:26:02Z"}],"graph_snapshots":[{"event_id":"sha256:4c16623f8d9e98169850f8ac180e1dfc625966f969582aad57c292ec22a2119e","target":"graph","created_at":"2026-05-18T02:34:59Z","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":"We present a spectroscopic and photometric analysis of the remarkable massive binary system, BD +36 4063. We argue that the visible ON star is undergoing a rapid mass transfer episode that results in a thick and opaque disk that surrounds and renders invisible its massive companion. A comparison of the projected rotational velocity and the orbital semiamplitude of the visible star indicates a mass ratio near unity. Models for conservative mass transfer show that the equal mass state occurs at the point of minimum separation, and we argue that BD +36 4063 may represent the first system identifi","authors_text":"D. R. Gies, R. A. Matson, S. J. Williams, W. Huang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-04-23T16:27:11Z","title":"The Evolutionary State of the Massive Interacting Binary BD+36 4063"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0904.3733","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":"sha256:95a631ba076ff4c25f6469d1f4f3f53c5aca2e1b0761d9f194bc17c86ac3e1ea","target":"record","created_at":"2026-05-18T02:34:59Z","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":"6ef47123e18a68f540e8748e1560e6f94a3a6f2a46a7287d014a90bd55d586a4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-04-23T16:27:11Z","title_canon_sha256":"9096883e7d93f45452cfa2bc9ccc88e29ca447a99350bf9d15db09b6d0743d97"},"schema_version":"1.0","source":{"id":"0904.3733","kind":"arxiv","version":1}},"canonical_sha256":"c577090e97289e991a07f861a1a69af3ab25cd1a268ff9acc4588575bf962d96","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c577090e97289e991a07f861a1a69af3ab25cd1a268ff9acc4588575bf962d96","first_computed_at":"2026-05-18T02:34:59.598237Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:34:59.598237Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KJmToKNvuZ57cDcKGHrIZ3WEjUPIDzEGxIAAFckNSshUUAWcnX/8aBcIr335N14fomxQLLNQlyAaDF4bJTRzAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:34:59.598699Z","signed_message":"canonical_sha256_bytes"},"source_id":"0904.3733","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:95a631ba076ff4c25f6469d1f4f3f53c5aca2e1b0761d9f194bc17c86ac3e1ea","sha256:4c16623f8d9e98169850f8ac180e1dfc625966f969582aad57c292ec22a2119e"],"state_sha256":"addceab115e9e256c60ecd4b546ccf5e943d8bd0da5ef114cf855726cce6acb0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XXISfoZXaA5JMWehAz126lQo6GR88DaV6iQOSlcv6p/Dzaw2ZhrakzykHZ6aBF/AWNwrf0y5lLVQhHdV1mhQCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T01:22:16.462260Z","bundle_sha256":"e2c39cb0db8f95cf8aeb72123186326cec7dfa6c1f26343ae9beaaeb5b210b7d"}}