{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2014:LO3PSIOTNKK3VXRIIGJ7G5L4KA","short_pith_number":"pith:LO3PSIOT","schema_version":"1.0","canonical_sha256":"5bb6f921d36a95bade284193f3757c50268ce66a112ecf307cf43f4483510909","source":{"kind":"arxiv","id":"1405.6858","version":1},"attestation_state":"computed","paper":{"title":"Optical quasi-periodic oscillation and color behavior of blazar PKS 2155-304","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.HE","authors_text":"Ben-Zhong Dai, Bing-Kai Zhang, Chun-Xiao Wang, Xiao-Yun Zhao","submitted_at":"2014-05-27T10:13:41Z","abstract_excerpt":"PKS 2155-304 is a well studied BL Lac object in the southern sky. The historical optical data during different period have been collected and compiled. Light curves with a time span of 35 years have been constructed. The R-band light curve has been analyzed by means of three methods: epoch folding method, Jurkevich method and discrete correlation function (DCF) method. It is derived that there is an evident periodic component of 317 days (i.e. 0.87 yr) superposed on a long-term trend with large-amplitude variation in the light curve. The variability of this source is accompanied by a slight co"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1405.6858","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-05-27T10:13:41Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"073b2271b1e9074b3aa50788f973353c308c892dabfd24c9469588ae6f918403","abstract_canon_sha256":"e7f4de3a26f69d9ec5084c4b137f6388c6d8533c4988f3edf149b279793acf60"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:43:05.894412Z","signature_b64":"5qx18wi6wRBfKLykzSKk+iBU6+n2xYuNRsUCieDRk3JCbgMNHIgnXXflU2G6CqBCj1PfPs1Dm/uawRzzS+AsCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5bb6f921d36a95bade284193f3757c50268ce66a112ecf307cf43f4483510909","last_reissued_at":"2026-05-18T01:43:05.893667Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:43:05.893667Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Optical quasi-periodic oscillation and color behavior of blazar PKS 2155-304","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.HE","authors_text":"Ben-Zhong Dai, Bing-Kai Zhang, Chun-Xiao Wang, Xiao-Yun Zhao","submitted_at":"2014-05-27T10:13:41Z","abstract_excerpt":"PKS 2155-304 is a well studied BL Lac object in the southern sky. The historical optical data during different period have been collected and compiled. Light curves with a time span of 35 years have been constructed. The R-band light curve has been analyzed by means of three methods: epoch folding method, Jurkevich method and discrete correlation function (DCF) method. It is derived that there is an evident periodic component of 317 days (i.e. 0.87 yr) superposed on a long-term trend with large-amplitude variation in the light curve. The variability of this source is accompanied by a slight co"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1405.6858","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1405.6858","created_at":"2026-05-18T01:43:05.893764+00:00"},{"alias_kind":"arxiv_version","alias_value":"1405.6858v1","created_at":"2026-05-18T01:43:05.893764+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1405.6858","created_at":"2026-05-18T01:43:05.893764+00:00"},{"alias_kind":"pith_short_12","alias_value":"LO3PSIOTNKK3","created_at":"2026-05-18T12:28:38.356838+00:00"},{"alias_kind":"pith_short_16","alias_value":"LO3PSIOTNKK3VXRI","created_at":"2026-05-18T12:28:38.356838+00:00"},{"alias_kind":"pith_short_8","alias_value":"LO3PSIOT","created_at":"2026-05-18T12:28:38.356838+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/LO3PSIOTNKK3VXRIIGJ7G5L4KA","json":"https://pith.science/pith/LO3PSIOTNKK3VXRIIGJ7G5L4KA.json","graph_json":"https://pith.science/api/pith-number/LO3PSIOTNKK3VXRIIGJ7G5L4KA/graph.json","events_json":"https://pith.science/api/pith-number/LO3PSIOTNKK3VXRIIGJ7G5L4KA/events.json","paper":"https://pith.science/paper/LO3PSIOT"},"agent_actions":{"view_html":"https://pith.science/pith/LO3PSIOTNKK3VXRIIGJ7G5L4KA","download_json":"https://pith.science/pith/LO3PSIOTNKK3VXRIIGJ7G5L4KA.json","view_paper":"https://pith.science/paper/LO3PSIOT","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1405.6858&json=true","fetch_graph":"https://pith.science/api/pith-number/LO3PSIOTNKK3VXRIIGJ7G5L4KA/graph.json","fetch_events":"https://pith.science/api/pith-number/LO3PSIOTNKK3VXRIIGJ7G5L4KA/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/LO3PSIOTNKK3VXRIIGJ7G5L4KA/action/timestamp_anchor","attest_storage":"https://pith.science/pith/LO3PSIOTNKK3VXRIIGJ7G5L4KA/action/storage_attestation","attest_author":"https://pith.science/pith/LO3PSIOTNKK3VXRIIGJ7G5L4KA/action/author_attestation","sign_citation":"https://pith.science/pith/LO3PSIOTNKK3VXRIIGJ7G5L4KA/action/citation_signature","submit_replication":"https://pith.science/pith/LO3PSIOTNKK3VXRIIGJ7G5L4KA/action/replication_record"}},"created_at":"2026-05-18T01:43:05.893764+00:00","updated_at":"2026-05-18T01:43:05.893764+00:00"}