{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2002:AO3Y3EUQ6GT6Q23CYUDNRYN4X5","short_pith_number":"pith:AO3Y3EUQ","canonical_record":{"source":{"id":"astro-ph/0207640","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2002-07-30T01:58:21Z","cross_cats_sorted":[],"title_canon_sha256":"c34c6f260679c85a7369014140327950316ca8ab1f09b3150aac7035b2dd4a57","abstract_canon_sha256":"e817f818339ca6e4d3af30060177d0bf00d4f310a93e4c016378d12ecb5a2566"},"schema_version":"1.0"},"canonical_sha256":"03b78d9290f1a7e86b62c506d8e1bcbf6517a447b973d3cbf045d75b74bb9e67","source":{"kind":"arxiv","id":"astro-ph/0207640","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0207640","created_at":"2026-07-04T14:12:08Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0207640v1","created_at":"2026-07-04T14:12:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0207640","created_at":"2026-07-04T14:12:08Z"},{"alias_kind":"pith_short_12","alias_value":"AO3Y3EUQ6GT6","created_at":"2026-07-04T14:12:08Z"},{"alias_kind":"pith_short_16","alias_value":"AO3Y3EUQ6GT6Q23C","created_at":"2026-07-04T14:12:08Z"},{"alias_kind":"pith_short_8","alias_value":"AO3Y3EUQ","created_at":"2026-07-04T14:12:08Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2002:AO3Y3EUQ6GT6Q23CYUDNRYN4X5","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0207640","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2002-07-30T01:58:21Z","cross_cats_sorted":[],"title_canon_sha256":"c34c6f260679c85a7369014140327950316ca8ab1f09b3150aac7035b2dd4a57","abstract_canon_sha256":"e817f818339ca6e4d3af30060177d0bf00d4f310a93e4c016378d12ecb5a2566"},"schema_version":"1.0"},"canonical_sha256":"03b78d9290f1a7e86b62c506d8e1bcbf6517a447b973d3cbf045d75b74bb9e67","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T14:12:08.173086Z","signature_b64":"ZJqF3Bay5KQkBsnosP4OG/ycS6ryTR0oUfNpeQ8KZlPZHhPDOoks4sbaoDJmcP51o1MO5yUZY2CsZYk9dCowAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"03b78d9290f1a7e86b62c506d8e1bcbf6517a447b973d3cbf045d75b74bb9e67","last_reissued_at":"2026-07-04T14:12:08.172687Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T14:12:08.172687Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0207640","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":"2026-07-04T14:12:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HQxYRHaX8sKpDddRN6KseSkvKX+amA/kOxUPY7JFdmPDu4QGsGYJddFXrWPb6qUeuRV54WDtlm1C72Fq6ho6CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T19:24:05.401841Z"},"content_sha256":"73b88adb6eb9c099c34e3d5f52cf5e8a646ea71b9c8033893c765c024ab7477b","schema_version":"1.0","event_id":"sha256:73b88adb6eb9c099c34e3d5f52cf5e8a646ea71b9c8033893c765c024ab7477b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2002:AO3Y3EUQ6GT6Q23CYUDNRYN4X5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Sco X-1 and Cyg X-1: Determination of Strength and Structure of Magnetic Field in the Nearest Environment of Accreting Compact Stars","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"L.G. Titarchuk, N.A. Silant'ev, Yu.N. Gnedin","submitted_at":"2002-07-30T01:58:21Z","abstract_excerpt":"We estimated the magnetic field strength of compact stars in X-ray binaries Sco X-1 and Cyg X-1, via various methods of determination of magnetic fields. For Sco X-1 we used three independent methods. One of them is based on the correct account of the Faraday rotation of polarization plane in the process of electron scattering of X-rays from accreting neutron stars. Numerical calculations are made with use of first X-rays polarimetric data presented by Long et al. (1979). Other original method of determing the magnetic field developed by Titarchuk at al. (2001) is based on observed quasi-perio"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0207640","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/astro-ph/0207640/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":"2026-07-04T14:12:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PQYOko+4bb/VVnH8UP6mBeuiciYfegoEk7cwjW82ndJ9i4scdRd8UvMIaLo5RVnATc707ztsScY6hZuDCHb4Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T19:24:05.402768Z"},"content_sha256":"5ae5c93d827bf9181373110b124f2b03929ef0927e043166a8d008a54e29b18a","schema_version":"1.0","event_id":"sha256:5ae5c93d827bf9181373110b124f2b03929ef0927e043166a8d008a54e29b18a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AO3Y3EUQ6GT6Q23CYUDNRYN4X5/bundle.json","state_url":"https://pith.science/pith/AO3Y3EUQ6GT6Q23CYUDNRYN4X5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AO3Y3EUQ6GT6Q23CYUDNRYN4X5/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":"2026-08-14T19:24:05Z","links":{"resolver":"https://pith.science/pith/AO3Y3EUQ6GT6Q23CYUDNRYN4X5","bundle":"https://pith.science/pith/AO3Y3EUQ6GT6Q23CYUDNRYN4X5/bundle.json","state":"https://pith.science/pith/AO3Y3EUQ6GT6Q23CYUDNRYN4X5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AO3Y3EUQ6GT6Q23CYUDNRYN4X5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2002:AO3Y3EUQ6GT6Q23CYUDNRYN4X5","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":"e817f818339ca6e4d3af30060177d0bf00d4f310a93e4c016378d12ecb5a2566","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2002-07-30T01:58:21Z","title_canon_sha256":"c34c6f260679c85a7369014140327950316ca8ab1f09b3150aac7035b2dd4a57"},"schema_version":"1.0","source":{"id":"astro-ph/0207640","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0207640","created_at":"2026-07-04T14:12:08Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0207640v1","created_at":"2026-07-04T14:12:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0207640","created_at":"2026-07-04T14:12:08Z"},{"alias_kind":"pith_short_12","alias_value":"AO3Y3EUQ6GT6","created_at":"2026-07-04T14:12:08Z"},{"alias_kind":"pith_short_16","alias_value":"AO3Y3EUQ6GT6Q23C","created_at":"2026-07-04T14:12:08Z"},{"alias_kind":"pith_short_8","alias_value":"AO3Y3EUQ","created_at":"2026-07-04T14:12:08Z"}],"graph_snapshots":[{"event_id":"sha256:5ae5c93d827bf9181373110b124f2b03929ef0927e043166a8d008a54e29b18a","target":"graph","created_at":"2026-07-04T14:12:08Z","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/astro-ph/0207640/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We estimated the magnetic field strength of compact stars in X-ray binaries Sco X-1 and Cyg X-1, via various methods of determination of magnetic fields. For Sco X-1 we used three independent methods. One of them is based on the correct account of the Faraday rotation of polarization plane in the process of electron scattering of X-rays from accreting neutron stars. Numerical calculations are made with use of first X-rays polarimetric data presented by Long et al. (1979). Other original method of determing the magnetic field developed by Titarchuk at al. (2001) is based on observed quasi-perio","authors_text":"L.G. Titarchuk, N.A. Silant'ev, Yu.N. Gnedin","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2002-07-30T01:58:21Z","title":"Sco X-1 and Cyg X-1: Determination of Strength and Structure of Magnetic Field in the Nearest Environment of Accreting Compact Stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0207640","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":"sha256:73b88adb6eb9c099c34e3d5f52cf5e8a646ea71b9c8033893c765c024ab7477b","target":"record","created_at":"2026-07-04T14:12:08Z","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":"e817f818339ca6e4d3af30060177d0bf00d4f310a93e4c016378d12ecb5a2566","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2002-07-30T01:58:21Z","title_canon_sha256":"c34c6f260679c85a7369014140327950316ca8ab1f09b3150aac7035b2dd4a57"},"schema_version":"1.0","source":{"id":"astro-ph/0207640","kind":"arxiv","version":1}},"canonical_sha256":"03b78d9290f1a7e86b62c506d8e1bcbf6517a447b973d3cbf045d75b74bb9e67","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"03b78d9290f1a7e86b62c506d8e1bcbf6517a447b973d3cbf045d75b74bb9e67","first_computed_at":"2026-07-04T14:12:08.172687Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T14:12:08.172687Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ZJqF3Bay5KQkBsnosP4OG/ycS6ryTR0oUfNpeQ8KZlPZHhPDOoks4sbaoDJmcP51o1MO5yUZY2CsZYk9dCowAg==","signature_status":"signed_v1","signed_at":"2026-07-04T14:12:08.173086Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0207640","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:73b88adb6eb9c099c34e3d5f52cf5e8a646ea71b9c8033893c765c024ab7477b","sha256:5ae5c93d827bf9181373110b124f2b03929ef0927e043166a8d008a54e29b18a"],"state_sha256":"d12dfb030c2e8884097f96659ce965f05c433165826dede01fe7c7c1dbb9dfbf"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"drYM1ML8wLGQBq2Bb3K0hcSTWnR2uy1j4cO0yr5oQV43i+SmC6Z4crxevzwGsOZaNDVRELNYebci+Hefwd39Cw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-14T19:24:05.409862Z","bundle_sha256":"daddcad0182256315de4e6e7328705e6f33673bf55ba304ba1f3a1a55b065c36"}}