{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:VJICOSVCRZEAO6H5Y2A5W4CC5E","short_pith_number":"pith:VJICOSVC","canonical_record":{"source":{"id":"1902.04141","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-02-11T20:50:08Z","cross_cats_sorted":[],"title_canon_sha256":"649c585f93c0ec2071ea373f1827068a8cb18d83c8f9542f9810dad7604c3ed0","abstract_canon_sha256":"9e19677ff3b3846386a297fb0bebc78b70dfec349fb589b098537c69335548f2"},"schema_version":"1.0"},"canonical_sha256":"aa50274aa28e480778fdc681db7042e91872bb2dfc00e99a13bf6800ff4dccd1","source":{"kind":"arxiv","id":"1902.04141","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.04141","created_at":"2026-05-17T23:39:46Z"},{"alias_kind":"arxiv_version","alias_value":"1902.04141v1","created_at":"2026-05-17T23:39:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.04141","created_at":"2026-05-17T23:39:46Z"},{"alias_kind":"pith_short_12","alias_value":"VJICOSVCRZEA","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_16","alias_value":"VJICOSVCRZEAO6H5","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_8","alias_value":"VJICOSVC","created_at":"2026-05-18T12:33:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:VJICOSVCRZEAO6H5Y2A5W4CC5E","target":"record","payload":{"canonical_record":{"source":{"id":"1902.04141","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-02-11T20:50:08Z","cross_cats_sorted":[],"title_canon_sha256":"649c585f93c0ec2071ea373f1827068a8cb18d83c8f9542f9810dad7604c3ed0","abstract_canon_sha256":"9e19677ff3b3846386a297fb0bebc78b70dfec349fb589b098537c69335548f2"},"schema_version":"1.0"},"canonical_sha256":"aa50274aa28e480778fdc681db7042e91872bb2dfc00e99a13bf6800ff4dccd1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:39:46.949554Z","signature_b64":"kMpmhaCQ076naa4NmnWM4N5kX9AU+bRyaIGE8r0ctLSVWp26zTxygK6rcI7eX0eVAGwBkUI1Bu01tbN3+lV1Bg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"aa50274aa28e480778fdc681db7042e91872bb2dfc00e99a13bf6800ff4dccd1","last_reissued_at":"2026-05-17T23:39:46.948608Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:39:46.948608Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1902.04141","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":"2026-05-17T23:39:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"n3nqMpTqgZGHwcsbnqYDjukV8fTXKAI4j450xWimczBDRq80XPmcLkwFGLM2UBdkkwBYwpRIjfZgfL1NiWkIAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T11:53:16.021663Z"},"content_sha256":"ff9d58e52ed5011d7e4ff992071709feb9526c3720027028014751cedd70b6a2","schema_version":"1.0","event_id":"sha256:ff9d58e52ed5011d7e4ff992071709feb9526c3720027028014751cedd70b6a2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:VJICOSVCRZEAO6H5Y2A5W4CC5E","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Photometric investigation and orbital period analyses of the W UMa binaries FP Lyn, FV CVn and V354 UMa","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"J Higuera, Q.-Q Xia., R. Michel","submitted_at":"2019-02-11T20:50:08Z","abstract_excerpt":"New light curves and photometric solutions of FP Lyn, FV CVn and V354 UMa are presented. It is found that these three systems are W-subtype shallow contact binaries. In addition, it is obvious that the light curves of FP Lyn and V354 UMa are asymmetric. Therefore, a hot spot was added on the primary star of FP Lyn and a dark spot was added on the secondary star of V354 UMa. At the same time, we added a third light to the photometric solution of FP Lyn for the final result. The obtained mass ratios and fill-out factors are $q=1.153$ and $f=13.4\\%$ for FP Lyn, $q=1.075$ and $f=4.6\\%$ for FV CVn,"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.04141","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":"2026-05-17T23:39:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WIcQMcUkmAW6Hmid+r+9xFl1kVnH3+z/Dnzmd85XsccbsNQ1YpbaOZ+3a6hXOVaVILX9iyfOHXXzhNhAwFLdAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T11:53:16.022519Z"},"content_sha256":"f0764813eae3eeb5cb136ea190f19398021a58894b920292aa1cce150ba47db5","schema_version":"1.0","event_id":"sha256:f0764813eae3eeb5cb136ea190f19398021a58894b920292aa1cce150ba47db5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VJICOSVCRZEAO6H5Y2A5W4CC5E/bundle.json","state_url":"https://pith.science/pith/VJICOSVCRZEAO6H5Y2A5W4CC5E/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VJICOSVCRZEAO6H5Y2A5W4CC5E/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":"2026-05-30T11:53:16Z","links":{"resolver":"https://pith.science/pith/VJICOSVCRZEAO6H5Y2A5W4CC5E","bundle":"https://pith.science/pith/VJICOSVCRZEAO6H5Y2A5W4CC5E/bundle.json","state":"https://pith.science/pith/VJICOSVCRZEAO6H5Y2A5W4CC5E/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VJICOSVCRZEAO6H5Y2A5W4CC5E/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:VJICOSVCRZEAO6H5Y2A5W4CC5E","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":"9e19677ff3b3846386a297fb0bebc78b70dfec349fb589b098537c69335548f2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-02-11T20:50:08Z","title_canon_sha256":"649c585f93c0ec2071ea373f1827068a8cb18d83c8f9542f9810dad7604c3ed0"},"schema_version":"1.0","source":{"id":"1902.04141","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.04141","created_at":"2026-05-17T23:39:46Z"},{"alias_kind":"arxiv_version","alias_value":"1902.04141v1","created_at":"2026-05-17T23:39:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.04141","created_at":"2026-05-17T23:39:46Z"},{"alias_kind":"pith_short_12","alias_value":"VJICOSVCRZEA","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_16","alias_value":"VJICOSVCRZEAO6H5","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_8","alias_value":"VJICOSVC","created_at":"2026-05-18T12:33:30Z"}],"graph_snapshots":[{"event_id":"sha256:f0764813eae3eeb5cb136ea190f19398021a58894b920292aa1cce150ba47db5","target":"graph","created_at":"2026-05-17T23:39:46Z","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":"New light curves and photometric solutions of FP Lyn, FV CVn and V354 UMa are presented. It is found that these three systems are W-subtype shallow contact binaries. In addition, it is obvious that the light curves of FP Lyn and V354 UMa are asymmetric. Therefore, a hot spot was added on the primary star of FP Lyn and a dark spot was added on the secondary star of V354 UMa. At the same time, we added a third light to the photometric solution of FP Lyn for the final result. The obtained mass ratios and fill-out factors are $q=1.153$ and $f=13.4\\%$ for FP Lyn, $q=1.075$ and $f=4.6\\%$ for FV CVn,","authors_text":"J Higuera, Q.-Q Xia., R. Michel","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-02-11T20:50:08Z","title":"Photometric investigation and orbital period analyses of the W UMa binaries FP Lyn, FV CVn and V354 UMa"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.04141","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:ff9d58e52ed5011d7e4ff992071709feb9526c3720027028014751cedd70b6a2","target":"record","created_at":"2026-05-17T23:39:46Z","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":"9e19677ff3b3846386a297fb0bebc78b70dfec349fb589b098537c69335548f2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-02-11T20:50:08Z","title_canon_sha256":"649c585f93c0ec2071ea373f1827068a8cb18d83c8f9542f9810dad7604c3ed0"},"schema_version":"1.0","source":{"id":"1902.04141","kind":"arxiv","version":1}},"canonical_sha256":"aa50274aa28e480778fdc681db7042e91872bb2dfc00e99a13bf6800ff4dccd1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"aa50274aa28e480778fdc681db7042e91872bb2dfc00e99a13bf6800ff4dccd1","first_computed_at":"2026-05-17T23:39:46.948608Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:39:46.948608Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kMpmhaCQ076naa4NmnWM4N5kX9AU+bRyaIGE8r0ctLSVWp26zTxygK6rcI7eX0eVAGwBkUI1Bu01tbN3+lV1Bg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:39:46.949554Z","signed_message":"canonical_sha256_bytes"},"source_id":"1902.04141","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ff9d58e52ed5011d7e4ff992071709feb9526c3720027028014751cedd70b6a2","sha256:f0764813eae3eeb5cb136ea190f19398021a58894b920292aa1cce150ba47db5"],"state_sha256":"ec41bc5a5b6bbf3c8354eebff2b8e610b757ae041ecad11590e559ececc82fd4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6u25Pqc+pur+xtjQICt6ft8PrFMgiB/f5zpfkP7AUBvj3qsp+h+3A0sI0Zn32bDLa6camdteQ8bXwMAl99V9CA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T11:53:16.027364Z","bundle_sha256":"daff23f19d2aa9c50b710fc8c051563f9e854e1e35ea9db6fbcee6af4bb0629e"}}