{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:FG3JSMWHOJNLOQCE57GZZ76Z45","short_pith_number":"pith:FG3JSMWH","canonical_record":{"source":{"id":"1106.2019","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-06-10T11:27:44Z","cross_cats_sorted":[],"title_canon_sha256":"96d145388baf014843fa8b691575dbf20a53a8c03cc21aae2090b3b7d2d76fa0","abstract_canon_sha256":"b66d2cdbff09ef06209ae7a2a2a5d9ab58530701e6e88a5bb360df10b13e9d9e"},"schema_version":"1.0"},"canonical_sha256":"29b69932c7725ab74044efcd9cffd9e75fecaf93bc4eb17377c55b7e4886bdab","source":{"kind":"arxiv","id":"1106.2019","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1106.2019","created_at":"2026-05-18T04:20:13Z"},{"alias_kind":"arxiv_version","alias_value":"1106.2019v1","created_at":"2026-05-18T04:20:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1106.2019","created_at":"2026-05-18T04:20:13Z"},{"alias_kind":"pith_short_12","alias_value":"FG3JSMWHOJNL","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_16","alias_value":"FG3JSMWHOJNLOQCE","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_8","alias_value":"FG3JSMWH","created_at":"2026-05-18T12:26:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:FG3JSMWHOJNLOQCE57GZZ76Z45","target":"record","payload":{"canonical_record":{"source":{"id":"1106.2019","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-06-10T11:27:44Z","cross_cats_sorted":[],"title_canon_sha256":"96d145388baf014843fa8b691575dbf20a53a8c03cc21aae2090b3b7d2d76fa0","abstract_canon_sha256":"b66d2cdbff09ef06209ae7a2a2a5d9ab58530701e6e88a5bb360df10b13e9d9e"},"schema_version":"1.0"},"canonical_sha256":"29b69932c7725ab74044efcd9cffd9e75fecaf93bc4eb17377c55b7e4886bdab","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:20:13.845189Z","signature_b64":"3QmQy2lQxhSQhzSKelCfyrWtOZGLij4+Zpg75XSPrVNuV4wDSJdqu4I18FiJ4Nf/EdNYYF1MiYPefV0QptmAAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"29b69932c7725ab74044efcd9cffd9e75fecaf93bc4eb17377c55b7e4886bdab","last_reissued_at":"2026-05-18T04:20:13.844678Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:20:13.844678Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1106.2019","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":"2026-05-18T04:20:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WDx24KGc3GYBq3yykorYA7v4dqZAvOZ6kOiI4l4SCFxqQyOpdy64txqyYFPe2sRwt/pJqOK3rxk/wM+CaIrJCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T19:53:13.716302Z"},"content_sha256":"19a910c16c0d9242482b7a4c10926f863cb0e52236537f35ba70073153ba9116","schema_version":"1.0","event_id":"sha256:19a910c16c0d9242482b7a4c10926f863cb0e52236537f35ba70073153ba9116"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:FG3JSMWHOJNLOQCE57GZZ76Z45","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"V1898 Cygni: An interacting eclipsing binary in the vicinity of North America nebula","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. Dervisoglu, C. Ibanoglu, E. Sipahi, \\\"O. \\c{C}ak{\\i}rl{\\i}","submitted_at":"2011-06-10T11:27:44Z","abstract_excerpt":"We present spectroscopic observations of the double-lined early type eclipsing binary V1898\\,Cyg. The radial velocities were obtained by means of the cross-correlation technique. Analyses of the BV light curves and RVs led to determination of the fundamental stellar parameters of the V1898\\,Cyg's components. We derived new ephemerides for the eclipsing pair using the observed times of mid-eclipses. The residuals between the observed and computed times of mid-eclipses were analysed and a rate of the period change $\\dot{P}/P= 6.68 \\times 10^{-7}\\,yr^{-1}$ was obtained. The orbital period is incr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1106.2019","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":"2026-05-18T04:20:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6JuCbErE5yaSUbczBTCSmaVMDfiQXLl49TehyH/2gQJhq1IzTnX7O5OIJOUSR+/36VtUQw6vol7u5zcbxcteDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T19:53:13.716664Z"},"content_sha256":"34d4ff58b2946a295738db2238884ecc79cc21fa5d9d9f6743be982eec153516","schema_version":"1.0","event_id":"sha256:34d4ff58b2946a295738db2238884ecc79cc21fa5d9d9f6743be982eec153516"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FG3JSMWHOJNLOQCE57GZZ76Z45/bundle.json","state_url":"https://pith.science/pith/FG3JSMWHOJNLOQCE57GZZ76Z45/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FG3JSMWHOJNLOQCE57GZZ76Z45/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":"2026-06-28T19:53:13Z","links":{"resolver":"https://pith.science/pith/FG3JSMWHOJNLOQCE57GZZ76Z45","bundle":"https://pith.science/pith/FG3JSMWHOJNLOQCE57GZZ76Z45/bundle.json","state":"https://pith.science/pith/FG3JSMWHOJNLOQCE57GZZ76Z45/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FG3JSMWHOJNLOQCE57GZZ76Z45/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:FG3JSMWHOJNLOQCE57GZZ76Z45","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":"b66d2cdbff09ef06209ae7a2a2a5d9ab58530701e6e88a5bb360df10b13e9d9e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-06-10T11:27:44Z","title_canon_sha256":"96d145388baf014843fa8b691575dbf20a53a8c03cc21aae2090b3b7d2d76fa0"},"schema_version":"1.0","source":{"id":"1106.2019","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1106.2019","created_at":"2026-05-18T04:20:13Z"},{"alias_kind":"arxiv_version","alias_value":"1106.2019v1","created_at":"2026-05-18T04:20:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1106.2019","created_at":"2026-05-18T04:20:13Z"},{"alias_kind":"pith_short_12","alias_value":"FG3JSMWHOJNL","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_16","alias_value":"FG3JSMWHOJNLOQCE","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_8","alias_value":"FG3JSMWH","created_at":"2026-05-18T12:26:28Z"}],"graph_snapshots":[{"event_id":"sha256:34d4ff58b2946a295738db2238884ecc79cc21fa5d9d9f6743be982eec153516","target":"graph","created_at":"2026-05-18T04:20:13Z","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 spectroscopic observations of the double-lined early type eclipsing binary V1898\\,Cyg. The radial velocities were obtained by means of the cross-correlation technique. Analyses of the BV light curves and RVs led to determination of the fundamental stellar parameters of the V1898\\,Cyg's components. We derived new ephemerides for the eclipsing pair using the observed times of mid-eclipses. The residuals between the observed and computed times of mid-eclipses were analysed and a rate of the period change $\\dot{P}/P= 6.68 \\times 10^{-7}\\,yr^{-1}$ was obtained. The orbital period is incr","authors_text":"A. Dervisoglu, C. Ibanoglu, E. Sipahi, \\\"O. \\c{C}ak{\\i}rl{\\i}","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-06-10T11:27:44Z","title":"V1898 Cygni: An interacting eclipsing binary in the vicinity of North America nebula"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1106.2019","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":"sha256:19a910c16c0d9242482b7a4c10926f863cb0e52236537f35ba70073153ba9116","target":"record","created_at":"2026-05-18T04:20:13Z","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":"b66d2cdbff09ef06209ae7a2a2a5d9ab58530701e6e88a5bb360df10b13e9d9e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-06-10T11:27:44Z","title_canon_sha256":"96d145388baf014843fa8b691575dbf20a53a8c03cc21aae2090b3b7d2d76fa0"},"schema_version":"1.0","source":{"id":"1106.2019","kind":"arxiv","version":1}},"canonical_sha256":"29b69932c7725ab74044efcd9cffd9e75fecaf93bc4eb17377c55b7e4886bdab","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"29b69932c7725ab74044efcd9cffd9e75fecaf93bc4eb17377c55b7e4886bdab","first_computed_at":"2026-05-18T04:20:13.844678Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:20:13.844678Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3QmQy2lQxhSQhzSKelCfyrWtOZGLij4+Zpg75XSPrVNuV4wDSJdqu4I18FiJ4Nf/EdNYYF1MiYPefV0QptmAAw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:20:13.845189Z","signed_message":"canonical_sha256_bytes"},"source_id":"1106.2019","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:19a910c16c0d9242482b7a4c10926f863cb0e52236537f35ba70073153ba9116","sha256:34d4ff58b2946a295738db2238884ecc79cc21fa5d9d9f6743be982eec153516"],"state_sha256":"7709d6967c755d24e3911b8b33545a04154b24bd3ca64c866a010823bf725cff"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UoKplGsghHJ85ZHTgi5ETdzl79iX5aioo3LtINRtIl67t7UH4nz+eHWFV32i8FMDjm1dG+1132W5jhCy5vU5Bg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-28T19:53:13.718647Z","bundle_sha256":"6d99493ae2c1e015798a720d6659a55e0d0032b4f43b190060df485a3bbc3b14"}}