{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:3VSXI5N2OW42MDPEJ6T4Z5HJCG","short_pith_number":"pith:3VSXI5N2","canonical_record":{"source":{"id":"1412.0682","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-11-25T07:27:05Z","cross_cats_sorted":[],"title_canon_sha256":"bfd9e0609a35a26ee0c7aa3882a9523bab798e598a96e282917ede79cd545c2f","abstract_canon_sha256":"9d93a1166c10750970d4d4814e965c102aa5e14e553b57f1b4b41554b1d30269"},"schema_version":"1.0"},"canonical_sha256":"dd657475ba75b9a60de44fa7ccf4e9118f4d7ae76696d974487110be573b810d","source":{"kind":"arxiv","id":"1412.0682","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1412.0682","created_at":"2026-05-18T02:32:21Z"},{"alias_kind":"arxiv_version","alias_value":"1412.0682v1","created_at":"2026-05-18T02:32:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1412.0682","created_at":"2026-05-18T02:32:21Z"},{"alias_kind":"pith_short_12","alias_value":"3VSXI5N2OW42","created_at":"2026-05-18T12:28:11Z"},{"alias_kind":"pith_short_16","alias_value":"3VSXI5N2OW42MDPE","created_at":"2026-05-18T12:28:11Z"},{"alias_kind":"pith_short_8","alias_value":"3VSXI5N2","created_at":"2026-05-18T12:28:11Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:3VSXI5N2OW42MDPEJ6T4Z5HJCG","target":"record","payload":{"canonical_record":{"source":{"id":"1412.0682","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-11-25T07:27:05Z","cross_cats_sorted":[],"title_canon_sha256":"bfd9e0609a35a26ee0c7aa3882a9523bab798e598a96e282917ede79cd545c2f","abstract_canon_sha256":"9d93a1166c10750970d4d4814e965c102aa5e14e553b57f1b4b41554b1d30269"},"schema_version":"1.0"},"canonical_sha256":"dd657475ba75b9a60de44fa7ccf4e9118f4d7ae76696d974487110be573b810d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:32:21.412821Z","signature_b64":"FmzNBgpgeaC7nbpRqjE8fHjal1OV0NgR/gBRtVH348q8gNEdPVs6+I4ya5eWlBVaXVV5L+wUDFfWFpZC1RYKCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dd657475ba75b9a60de44fa7ccf4e9118f4d7ae76696d974487110be573b810d","last_reissued_at":"2026-05-18T02:32:21.412378Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:32:21.412378Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1412.0682","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":"2026-05-18T02:32:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WTH26+whOIrERf1rv45iy8DNwkilcKUFfuzHO2HHyPhYIFNfEWVQnadazudQo4kxbzc6QgqrYPdcdQIdnT3ACg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T15:02:59.765697Z"},"content_sha256":"cf5e5d8ae15c30919bb31a64b31b9612c4994c77473cdce4f1a4c0de6cb3d92a","schema_version":"1.0","event_id":"sha256:cf5e5d8ae15c30919bb31a64b31b9612c4994c77473cdce4f1a4c0de6cb3d92a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:3VSXI5N2OW42MDPEJ6T4Z5HJCG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Circumbinary Components of Contact Binaries","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"\\.I Bulut, O. Demircan","submitted_at":"2014-11-25T07:27:05Z","abstract_excerpt":"The period changes of contact binaries obtained by the analysis of eclipse minima timing are found mostly chaotic in nature. However, they are representable by a few cyclic changes superposed on a secular change. The cyclic changes are caused most probably by the third components revolving around the contact binaries. Some typical examples of the period changes of contact binaries are presented in the present contribution."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1412.0682","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":"2026-05-18T02:32:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UC0S5XiBXNU0D2xVeldOnZC/2S/PrPDusw6vPaKkZ8XX2Vm0gAeR9zKqkTK0Fxl73Wmmuti7cnCXId14UQ4HBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T15:02:59.766041Z"},"content_sha256":"316e6bf2fd7921b6af5d6141f1e6de96e70d879226e0f52928ec49ddcbced005","schema_version":"1.0","event_id":"sha256:316e6bf2fd7921b6af5d6141f1e6de96e70d879226e0f52928ec49ddcbced005"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3VSXI5N2OW42MDPEJ6T4Z5HJCG/bundle.json","state_url":"https://pith.science/pith/3VSXI5N2OW42MDPEJ6T4Z5HJCG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3VSXI5N2OW42MDPEJ6T4Z5HJCG/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":"2026-05-28T15:02:59Z","links":{"resolver":"https://pith.science/pith/3VSXI5N2OW42MDPEJ6T4Z5HJCG","bundle":"https://pith.science/pith/3VSXI5N2OW42MDPEJ6T4Z5HJCG/bundle.json","state":"https://pith.science/pith/3VSXI5N2OW42MDPEJ6T4Z5HJCG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3VSXI5N2OW42MDPEJ6T4Z5HJCG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:3VSXI5N2OW42MDPEJ6T4Z5HJCG","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":"9d93a1166c10750970d4d4814e965c102aa5e14e553b57f1b4b41554b1d30269","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-11-25T07:27:05Z","title_canon_sha256":"bfd9e0609a35a26ee0c7aa3882a9523bab798e598a96e282917ede79cd545c2f"},"schema_version":"1.0","source":{"id":"1412.0682","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1412.0682","created_at":"2026-05-18T02:32:21Z"},{"alias_kind":"arxiv_version","alias_value":"1412.0682v1","created_at":"2026-05-18T02:32:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1412.0682","created_at":"2026-05-18T02:32:21Z"},{"alias_kind":"pith_short_12","alias_value":"3VSXI5N2OW42","created_at":"2026-05-18T12:28:11Z"},{"alias_kind":"pith_short_16","alias_value":"3VSXI5N2OW42MDPE","created_at":"2026-05-18T12:28:11Z"},{"alias_kind":"pith_short_8","alias_value":"3VSXI5N2","created_at":"2026-05-18T12:28:11Z"}],"graph_snapshots":[{"event_id":"sha256:316e6bf2fd7921b6af5d6141f1e6de96e70d879226e0f52928ec49ddcbced005","target":"graph","created_at":"2026-05-18T02:32:21Z","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":"The period changes of contact binaries obtained by the analysis of eclipse minima timing are found mostly chaotic in nature. However, they are representable by a few cyclic changes superposed on a secular change. The cyclic changes are caused most probably by the third components revolving around the contact binaries. Some typical examples of the period changes of contact binaries are presented in the present contribution.","authors_text":"\\.I Bulut, O. Demircan","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-11-25T07:27:05Z","title":"Circumbinary Components of Contact Binaries"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1412.0682","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:cf5e5d8ae15c30919bb31a64b31b9612c4994c77473cdce4f1a4c0de6cb3d92a","target":"record","created_at":"2026-05-18T02:32:21Z","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":"9d93a1166c10750970d4d4814e965c102aa5e14e553b57f1b4b41554b1d30269","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-11-25T07:27:05Z","title_canon_sha256":"bfd9e0609a35a26ee0c7aa3882a9523bab798e598a96e282917ede79cd545c2f"},"schema_version":"1.0","source":{"id":"1412.0682","kind":"arxiv","version":1}},"canonical_sha256":"dd657475ba75b9a60de44fa7ccf4e9118f4d7ae76696d974487110be573b810d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"dd657475ba75b9a60de44fa7ccf4e9118f4d7ae76696d974487110be573b810d","first_computed_at":"2026-05-18T02:32:21.412378Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:32:21.412378Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"FmzNBgpgeaC7nbpRqjE8fHjal1OV0NgR/gBRtVH348q8gNEdPVs6+I4ya5eWlBVaXVV5L+wUDFfWFpZC1RYKCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:32:21.412821Z","signed_message":"canonical_sha256_bytes"},"source_id":"1412.0682","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cf5e5d8ae15c30919bb31a64b31b9612c4994c77473cdce4f1a4c0de6cb3d92a","sha256:316e6bf2fd7921b6af5d6141f1e6de96e70d879226e0f52928ec49ddcbced005"],"state_sha256":"78f3e6a17e5625944e5e14109e39f5cb0c5eecffad8ad74ca2de674c6b413143"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Z3l60c55wYX5ISaoNcyeRFd+XQxldiXe1MWypREFi4okbWt5nzxIF/vUIaDnxQc1HIEA7+5ySzBHNO7fmeiICQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T15:02:59.768099Z","bundle_sha256":"710e78c5c0554abf487cf048b8ac6a25bb070b4abecd436fe205407022e55e1f"}}