{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:GURSXDNHGHEVF4SBRCHHRXZOOS","short_pith_number":"pith:GURSXDNH","canonical_record":{"source":{"id":"0904.1116","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2009-04-07T11:33:50Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"dccdd21672c66de0cec91627aeb45583cd2a2a4dfb4018fba029b51633f0c896","abstract_canon_sha256":"23cc628e6e64c08d5240ce504a46bd7c405f1d16a2b76fba80dcad4990a8ee22"},"schema_version":"1.0"},"canonical_sha256":"35232b8da731c952f241888e78df2e74bb773fbaf4fe265cd9763f40d92e994b","source":{"kind":"arxiv","id":"0904.1116","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0904.1116","created_at":"2026-05-18T02:14:07Z"},{"alias_kind":"arxiv_version","alias_value":"0904.1116v1","created_at":"2026-05-18T02:14:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0904.1116","created_at":"2026-05-18T02:14:07Z"},{"alias_kind":"pith_short_12","alias_value":"GURSXDNHGHEV","created_at":"2026-05-18T12:25:59Z"},{"alias_kind":"pith_short_16","alias_value":"GURSXDNHGHEVF4SB","created_at":"2026-05-18T12:25:59Z"},{"alias_kind":"pith_short_8","alias_value":"GURSXDNH","created_at":"2026-05-18T12:25:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:GURSXDNHGHEVF4SBRCHHRXZOOS","target":"record","payload":{"canonical_record":{"source":{"id":"0904.1116","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2009-04-07T11:33:50Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"dccdd21672c66de0cec91627aeb45583cd2a2a4dfb4018fba029b51633f0c896","abstract_canon_sha256":"23cc628e6e64c08d5240ce504a46bd7c405f1d16a2b76fba80dcad4990a8ee22"},"schema_version":"1.0"},"canonical_sha256":"35232b8da731c952f241888e78df2e74bb773fbaf4fe265cd9763f40d92e994b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:14:07.085141Z","signature_b64":"U0h0J7ftTJ9Ji4C0au4uWMELZ4krGd19ZHWoKQJ/Q/38/9IHqTPR6PkSOsFo8MOeRROhAA3BNKD4HghCzcZjCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"35232b8da731c952f241888e78df2e74bb773fbaf4fe265cd9763f40d92e994b","last_reissued_at":"2026-05-18T02:14:07.084621Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:14:07.084621Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0904.1116","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":"2026-05-18T02:14:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Be82kLzA1P1Y2cB2fpdzlNoxxzNAe84X3YJ25QfyaBBsMKvgEsJ6Mi78vz1li+Lf0Vda9zzuUcy+QCC9upgQBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T19:31:54.124959Z"},"content_sha256":"f66bce1374584d949c079340b931a66c33d22eaed9a64c60953e97c6247d67bc","schema_version":"1.0","event_id":"sha256:f66bce1374584d949c079340b931a66c33d22eaed9a64c60953e97c6247d67bc"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:GURSXDNHGHEVF4SBRCHHRXZOOS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"New Insights into X-ray Binaries","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.GA","authors_text":"Jorge Casares","submitted_at":"2009-04-07T11:33:50Z","abstract_excerpt":"X-ray binaries are excellent laboratories to study collapsed objects. On the one hand, transient X-ray binaries contain the best examples of stellar-mass black holes while persistent X-ray binaries mostly harbour accreting neutron stars. The determination of stellar masses in persistent X-ray binaries is usually hampered by the overwhelming luminosity of the X-ray heated accretion disc. However, the discovery of high-excitation emission lines from the irradiated companion star has opened new routes in the study of compact objects. This paper presents novel techniques which exploits these irrad"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0904.1116","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":"2026-05-18T02:14:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CZM5xXJK9XSYjnJYEVYwBiX5XySAYmaaBG560wlMeYy++qLAGHqjH/KnSl4jAH0/CBLexP//h0oljShE2H65Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T19:31:54.125677Z"},"content_sha256":"bb53ac21b2c2a4c7551c95ca6d14dcddf2dd4ff3ba37d8944a2ab38c9a97be3d","schema_version":"1.0","event_id":"sha256:bb53ac21b2c2a4c7551c95ca6d14dcddf2dd4ff3ba37d8944a2ab38c9a97be3d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GURSXDNHGHEVF4SBRCHHRXZOOS/bundle.json","state_url":"https://pith.science/pith/GURSXDNHGHEVF4SBRCHHRXZOOS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GURSXDNHGHEVF4SBRCHHRXZOOS/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":"2026-06-08T19:31:54Z","links":{"resolver":"https://pith.science/pith/GURSXDNHGHEVF4SBRCHHRXZOOS","bundle":"https://pith.science/pith/GURSXDNHGHEVF4SBRCHHRXZOOS/bundle.json","state":"https://pith.science/pith/GURSXDNHGHEVF4SBRCHHRXZOOS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GURSXDNHGHEVF4SBRCHHRXZOOS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:GURSXDNHGHEVF4SBRCHHRXZOOS","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":"23cc628e6e64c08d5240ce504a46bd7c405f1d16a2b76fba80dcad4990a8ee22","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2009-04-07T11:33:50Z","title_canon_sha256":"dccdd21672c66de0cec91627aeb45583cd2a2a4dfb4018fba029b51633f0c896"},"schema_version":"1.0","source":{"id":"0904.1116","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0904.1116","created_at":"2026-05-18T02:14:07Z"},{"alias_kind":"arxiv_version","alias_value":"0904.1116v1","created_at":"2026-05-18T02:14:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0904.1116","created_at":"2026-05-18T02:14:07Z"},{"alias_kind":"pith_short_12","alias_value":"GURSXDNHGHEV","created_at":"2026-05-18T12:25:59Z"},{"alias_kind":"pith_short_16","alias_value":"GURSXDNHGHEVF4SB","created_at":"2026-05-18T12:25:59Z"},{"alias_kind":"pith_short_8","alias_value":"GURSXDNH","created_at":"2026-05-18T12:25:59Z"}],"graph_snapshots":[{"event_id":"sha256:bb53ac21b2c2a4c7551c95ca6d14dcddf2dd4ff3ba37d8944a2ab38c9a97be3d","target":"graph","created_at":"2026-05-18T02:14:07Z","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":"X-ray binaries are excellent laboratories to study collapsed objects. On the one hand, transient X-ray binaries contain the best examples of stellar-mass black holes while persistent X-ray binaries mostly harbour accreting neutron stars. The determination of stellar masses in persistent X-ray binaries is usually hampered by the overwhelming luminosity of the X-ray heated accretion disc. However, the discovery of high-excitation emission lines from the irradiated companion star has opened new routes in the study of compact objects. This paper presents novel techniques which exploits these irrad","authors_text":"Jorge Casares","cross_cats":["astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2009-04-07T11:33:50Z","title":"New Insights into X-ray Binaries"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0904.1116","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:f66bce1374584d949c079340b931a66c33d22eaed9a64c60953e97c6247d67bc","target":"record","created_at":"2026-05-18T02:14:07Z","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":"23cc628e6e64c08d5240ce504a46bd7c405f1d16a2b76fba80dcad4990a8ee22","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2009-04-07T11:33:50Z","title_canon_sha256":"dccdd21672c66de0cec91627aeb45583cd2a2a4dfb4018fba029b51633f0c896"},"schema_version":"1.0","source":{"id":"0904.1116","kind":"arxiv","version":1}},"canonical_sha256":"35232b8da731c952f241888e78df2e74bb773fbaf4fe265cd9763f40d92e994b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"35232b8da731c952f241888e78df2e74bb773fbaf4fe265cd9763f40d92e994b","first_computed_at":"2026-05-18T02:14:07.084621Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:14:07.084621Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"U0h0J7ftTJ9Ji4C0au4uWMELZ4krGd19ZHWoKQJ/Q/38/9IHqTPR6PkSOsFo8MOeRROhAA3BNKD4HghCzcZjCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:14:07.085141Z","signed_message":"canonical_sha256_bytes"},"source_id":"0904.1116","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f66bce1374584d949c079340b931a66c33d22eaed9a64c60953e97c6247d67bc","sha256:bb53ac21b2c2a4c7551c95ca6d14dcddf2dd4ff3ba37d8944a2ab38c9a97be3d"],"state_sha256":"2d695abca1b7ad9a162627928f66ba0d875d7259183da3b77ab0616a87d47d69"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jQIBujewBqudD/YTkCGuiQ4oQr0Inxz1ZSIWdL7gkbKxA7nt//FmANA5z9ewukdRu6t4PeLKvqDgrCoi5kGsBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T19:31:54.129511Z","bundle_sha256":"daa301e403a8a6837d2b89819d23e03852faabcc25ef173f36f525d17c989b0c"}}