{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:WPIJD3I3SPQB3N4FN2LVCTHOAX","short_pith_number":"pith:WPIJD3I3","canonical_record":{"source":{"id":"1201.4689","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-01-23T11:41:14Z","cross_cats_sorted":[],"title_canon_sha256":"876147382dfdc07b28ca6925b0a1a57ca82db70faee2477d14350749b10d13bd","abstract_canon_sha256":"37a9d0fcb892618626109cb659fbd5f645df51319bb5616c37d83913e5c25a94"},"schema_version":"1.0"},"canonical_sha256":"b3d091ed1b93e01db7856e97514cee05e4ce5d65af3c9769b8ee806803f102a8","source":{"kind":"arxiv","id":"1201.4689","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1201.4689","created_at":"2026-05-18T01:58:43Z"},{"alias_kind":"arxiv_version","alias_value":"1201.4689v1","created_at":"2026-05-18T01:58:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1201.4689","created_at":"2026-05-18T01:58:43Z"},{"alias_kind":"pith_short_12","alias_value":"WPIJD3I3SPQB","created_at":"2026-05-18T12:27:25Z"},{"alias_kind":"pith_short_16","alias_value":"WPIJD3I3SPQB3N4F","created_at":"2026-05-18T12:27:25Z"},{"alias_kind":"pith_short_8","alias_value":"WPIJD3I3","created_at":"2026-05-18T12:27:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:WPIJD3I3SPQB3N4FN2LVCTHOAX","target":"record","payload":{"canonical_record":{"source":{"id":"1201.4689","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-01-23T11:41:14Z","cross_cats_sorted":[],"title_canon_sha256":"876147382dfdc07b28ca6925b0a1a57ca82db70faee2477d14350749b10d13bd","abstract_canon_sha256":"37a9d0fcb892618626109cb659fbd5f645df51319bb5616c37d83913e5c25a94"},"schema_version":"1.0"},"canonical_sha256":"b3d091ed1b93e01db7856e97514cee05e4ce5d65af3c9769b8ee806803f102a8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:58:43.573009Z","signature_b64":"N0dxek6kWefwRVe2F5tk5+fxGvZydIPtNDayALtpOJZly7DnGBGQZE7v5jbAQ0//4eE3GBOVzzs4QWjpz3IqDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b3d091ed1b93e01db7856e97514cee05e4ce5d65af3c9769b8ee806803f102a8","last_reissued_at":"2026-05-18T01:58:43.572248Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:58:43.572248Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1201.4689","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":"2026-05-18T01:58:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XnTMBWztcXmPasLOm7oGbNe7ING2Yihd//VR9z5q7nQd6dfXdZRjFzeT+53Kra1gN7JjpDYX/ITMAeDKYV3oBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T23:34:26.644435Z"},"content_sha256":"07b8483a8875b72a9efc9091afa68938de7f799e4d6033237884a344d3aaa4ca","schema_version":"1.0","event_id":"sha256:07b8483a8875b72a9efc9091afa68938de7f799e4d6033237884a344d3aaa4ca"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:WPIJD3I3SPQB3N4FN2LVCTHOAX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Mass of the Compact Object in the Low-Mass X-ray Binary 2S 0921-630","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. M. Cherepashchuk, E. A. Antokhina, M. K. Abubekerov, V. V. Shimanskii","submitted_at":"2012-01-23T11:41:14Z","abstract_excerpt":"We interpret the observed radial-velocity curve of the optical star in the low-mass X-ray binary 2S 0921-630 using a Roche model, taking into account the X-ray heating of the optical star and screening of X-rays coming from the relativistic object by the accretion disk. Consequences of possible anisotropy of the X-ray radiation are considered.We obtain relations between the masses of the optical and compact (X-ray) components, mv and mx, for orbital inclinations i=60, 75, 90 degrees. Including X-ray heating enabled us to reduce the compact object's mass by near 0.5-1Msun, compared to the case "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1201.4689","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":"2026-05-18T01:58:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CjU14otBfzWdhb+cZjG3xckDntczBDMMpaLng1MmDEhp4ue+G8RlmiaIo505ljdX7A13g8Ni2bV+pWqalZGbAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T23:34:26.645106Z"},"content_sha256":"f440c62d696e21d001d8fea699e5205d6dbe3b9785c861110184967044816f9b","schema_version":"1.0","event_id":"sha256:f440c62d696e21d001d8fea699e5205d6dbe3b9785c861110184967044816f9b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WPIJD3I3SPQB3N4FN2LVCTHOAX/bundle.json","state_url":"https://pith.science/pith/WPIJD3I3SPQB3N4FN2LVCTHOAX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WPIJD3I3SPQB3N4FN2LVCTHOAX/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":"2026-05-30T23:34:26Z","links":{"resolver":"https://pith.science/pith/WPIJD3I3SPQB3N4FN2LVCTHOAX","bundle":"https://pith.science/pith/WPIJD3I3SPQB3N4FN2LVCTHOAX/bundle.json","state":"https://pith.science/pith/WPIJD3I3SPQB3N4FN2LVCTHOAX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WPIJD3I3SPQB3N4FN2LVCTHOAX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:WPIJD3I3SPQB3N4FN2LVCTHOAX","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":"37a9d0fcb892618626109cb659fbd5f645df51319bb5616c37d83913e5c25a94","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-01-23T11:41:14Z","title_canon_sha256":"876147382dfdc07b28ca6925b0a1a57ca82db70faee2477d14350749b10d13bd"},"schema_version":"1.0","source":{"id":"1201.4689","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1201.4689","created_at":"2026-05-18T01:58:43Z"},{"alias_kind":"arxiv_version","alias_value":"1201.4689v1","created_at":"2026-05-18T01:58:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1201.4689","created_at":"2026-05-18T01:58:43Z"},{"alias_kind":"pith_short_12","alias_value":"WPIJD3I3SPQB","created_at":"2026-05-18T12:27:25Z"},{"alias_kind":"pith_short_16","alias_value":"WPIJD3I3SPQB3N4F","created_at":"2026-05-18T12:27:25Z"},{"alias_kind":"pith_short_8","alias_value":"WPIJD3I3","created_at":"2026-05-18T12:27:25Z"}],"graph_snapshots":[{"event_id":"sha256:f440c62d696e21d001d8fea699e5205d6dbe3b9785c861110184967044816f9b","target":"graph","created_at":"2026-05-18T01:58:43Z","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 interpret the observed radial-velocity curve of the optical star in the low-mass X-ray binary 2S 0921-630 using a Roche model, taking into account the X-ray heating of the optical star and screening of X-rays coming from the relativistic object by the accretion disk. Consequences of possible anisotropy of the X-ray radiation are considered.We obtain relations between the masses of the optical and compact (X-ray) components, mv and mx, for orbital inclinations i=60, 75, 90 degrees. Including X-ray heating enabled us to reduce the compact object's mass by near 0.5-1Msun, compared to the case ","authors_text":"A. M. Cherepashchuk, E. A. Antokhina, M. K. Abubekerov, V. V. Shimanskii","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-01-23T11:41:14Z","title":"The Mass of the Compact Object in the Low-Mass X-ray Binary 2S 0921-630"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1201.4689","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":"sha256:07b8483a8875b72a9efc9091afa68938de7f799e4d6033237884a344d3aaa4ca","target":"record","created_at":"2026-05-18T01:58:43Z","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":"37a9d0fcb892618626109cb659fbd5f645df51319bb5616c37d83913e5c25a94","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-01-23T11:41:14Z","title_canon_sha256":"876147382dfdc07b28ca6925b0a1a57ca82db70faee2477d14350749b10d13bd"},"schema_version":"1.0","source":{"id":"1201.4689","kind":"arxiv","version":1}},"canonical_sha256":"b3d091ed1b93e01db7856e97514cee05e4ce5d65af3c9769b8ee806803f102a8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b3d091ed1b93e01db7856e97514cee05e4ce5d65af3c9769b8ee806803f102a8","first_computed_at":"2026-05-18T01:58:43.572248Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:58:43.572248Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"N0dxek6kWefwRVe2F5tk5+fxGvZydIPtNDayALtpOJZly7DnGBGQZE7v5jbAQ0//4eE3GBOVzzs4QWjpz3IqDw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:58:43.573009Z","signed_message":"canonical_sha256_bytes"},"source_id":"1201.4689","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:07b8483a8875b72a9efc9091afa68938de7f799e4d6033237884a344d3aaa4ca","sha256:f440c62d696e21d001d8fea699e5205d6dbe3b9785c861110184967044816f9b"],"state_sha256":"8d7ebd218f41578a139f64e76a57bad56c47cd148954fb2a3909e5cd24c34251"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"614ZsF4EmbycRHRyDbiiztmFSj2fBUi7Ni7ojt535bphh+BlfkPZa+3apt+P0T03/wPIua888M90hQoWUwosBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T23:34:26.648582Z","bundle_sha256":"3ec29ebaa99501c1b787488ccbda3e72a503689c1c362b188809cc89bd9ec4dc"}}