{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:736FM5FUND5N2GR2CDJJ76M4YD","short_pith_number":"pith:736FM5FU","canonical_record":{"source":{"id":"1208.3655","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-08-17T18:24:18Z","cross_cats_sorted":[],"title_canon_sha256":"aef9cd14e53d0193c5dbbd499dc61031933ab746f568264006afa9babf20f26e","abstract_canon_sha256":"416cd74bf69295ad83be5355a123a23032cb571f79c4d077209698d59373f603"},"schema_version":"1.0"},"canonical_sha256":"fefc5674b468fadd1a3a10d29ff99cc0f5e6f861bc1546c34deac0e66c3de076","source":{"kind":"arxiv","id":"1208.3655","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1208.3655","created_at":"2026-05-18T01:55:09Z"},{"alias_kind":"arxiv_version","alias_value":"1208.3655v2","created_at":"2026-05-18T01:55:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1208.3655","created_at":"2026-05-18T01:55:09Z"},{"alias_kind":"pith_short_12","alias_value":"736FM5FUND5N","created_at":"2026-05-18T12:26:56Z"},{"alias_kind":"pith_short_16","alias_value":"736FM5FUND5N2GR2","created_at":"2026-05-18T12:26:56Z"},{"alias_kind":"pith_short_8","alias_value":"736FM5FU","created_at":"2026-05-18T12:26:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:736FM5FUND5N2GR2CDJJ76M4YD","target":"record","payload":{"canonical_record":{"source":{"id":"1208.3655","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-08-17T18:24:18Z","cross_cats_sorted":[],"title_canon_sha256":"aef9cd14e53d0193c5dbbd499dc61031933ab746f568264006afa9babf20f26e","abstract_canon_sha256":"416cd74bf69295ad83be5355a123a23032cb571f79c4d077209698d59373f603"},"schema_version":"1.0"},"canonical_sha256":"fefc5674b468fadd1a3a10d29ff99cc0f5e6f861bc1546c34deac0e66c3de076","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:55:09.695941Z","signature_b64":"cUtqZkfe7UgyQPDbtkBIUXtlVUM9cfnTrSBdfL9KzWc2Z4QQnh8FmUOkGgaZKJLrQF3W5ZkbtuaHtoCDtwwbCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fefc5674b468fadd1a3a10d29ff99cc0f5e6f861bc1546c34deac0e66c3de076","last_reissued_at":"2026-05-18T01:55:09.695389Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:55:09.695389Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1208.3655","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:55:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iRckdStpjJFanGUFrjNP7qZTXrEmy850Z7xD/BUBjpzP3Mpm1P28p7XsZ/qInpe/HmtZSPGBQWeA9CsC1yWRBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T22:33:08.996787Z"},"content_sha256":"4640f7f6f1af4582a446e5132516f22716bfcc7cdf9e91bfeb36280b6957461c","schema_version":"1.0","event_id":"sha256:4640f7f6f1af4582a446e5132516f22716bfcc7cdf9e91bfeb36280b6957461c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:736FM5FUND5N2GR2CDJJ76M4YD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Phenomenological Modeling of the Light Curves of Algol-Type Eclipsing Binary Stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Ivan L. Andronov","submitted_at":"2012-08-17T18:24:18Z","abstract_excerpt":"We introduce a special class of functions for mathematical modeling of periodic signals of special shape with irregularly spaced arguments. This method was developed for determination of phenomenological characteristics of the light curves, which are necessary for registration in the \"General Catalogue of Variable Stars\" and other databases. For eclipsing binary stars with smooth light curves - of types EB and EW - it is recommended a trigonometric polynomial of optimal degree in a complete or symmetric form. For eclipsing binary systems with narrow minima (EA-type), statistically optimal is a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1208.3655","kind":"arxiv","version":2},"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":"2026-05-18T01:55:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UGRWdrZv5r21DjEHLeydqVglum5vF01Izvjk9WuA+nBjJjf/OSUr5eOW0fAldPzJpnRK4DFwzy3CFyeM5Q2dDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T22:33:08.997746Z"},"content_sha256":"94be744de9838009ad863ce6772f9a45e53733149062947bdb6376b325c8c2e1","schema_version":"1.0","event_id":"sha256:94be744de9838009ad863ce6772f9a45e53733149062947bdb6376b325c8c2e1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/736FM5FUND5N2GR2CDJJ76M4YD/bundle.json","state_url":"https://pith.science/pith/736FM5FUND5N2GR2CDJJ76M4YD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/736FM5FUND5N2GR2CDJJ76M4YD/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":"2026-05-28T22:33:08Z","links":{"resolver":"https://pith.science/pith/736FM5FUND5N2GR2CDJJ76M4YD","bundle":"https://pith.science/pith/736FM5FUND5N2GR2CDJJ76M4YD/bundle.json","state":"https://pith.science/pith/736FM5FUND5N2GR2CDJJ76M4YD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/736FM5FUND5N2GR2CDJJ76M4YD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:736FM5FUND5N2GR2CDJJ76M4YD","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":"416cd74bf69295ad83be5355a123a23032cb571f79c4d077209698d59373f603","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-08-17T18:24:18Z","title_canon_sha256":"aef9cd14e53d0193c5dbbd499dc61031933ab746f568264006afa9babf20f26e"},"schema_version":"1.0","source":{"id":"1208.3655","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1208.3655","created_at":"2026-05-18T01:55:09Z"},{"alias_kind":"arxiv_version","alias_value":"1208.3655v2","created_at":"2026-05-18T01:55:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1208.3655","created_at":"2026-05-18T01:55:09Z"},{"alias_kind":"pith_short_12","alias_value":"736FM5FUND5N","created_at":"2026-05-18T12:26:56Z"},{"alias_kind":"pith_short_16","alias_value":"736FM5FUND5N2GR2","created_at":"2026-05-18T12:26:56Z"},{"alias_kind":"pith_short_8","alias_value":"736FM5FU","created_at":"2026-05-18T12:26:56Z"}],"graph_snapshots":[{"event_id":"sha256:94be744de9838009ad863ce6772f9a45e53733149062947bdb6376b325c8c2e1","target":"graph","created_at":"2026-05-18T01:55:09Z","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 introduce a special class of functions for mathematical modeling of periodic signals of special shape with irregularly spaced arguments. This method was developed for determination of phenomenological characteristics of the light curves, which are necessary for registration in the \"General Catalogue of Variable Stars\" and other databases. For eclipsing binary stars with smooth light curves - of types EB and EW - it is recommended a trigonometric polynomial of optimal degree in a complete or symmetric form. For eclipsing binary systems with narrow minima (EA-type), statistically optimal is a","authors_text":"Ivan L. Andronov","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-08-17T18:24:18Z","title":"Phenomenological Modeling of the Light Curves of Algol-Type Eclipsing Binary Stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1208.3655","kind":"arxiv","version":2},"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":"sha256:4640f7f6f1af4582a446e5132516f22716bfcc7cdf9e91bfeb36280b6957461c","target":"record","created_at":"2026-05-18T01:55:09Z","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":"416cd74bf69295ad83be5355a123a23032cb571f79c4d077209698d59373f603","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-08-17T18:24:18Z","title_canon_sha256":"aef9cd14e53d0193c5dbbd499dc61031933ab746f568264006afa9babf20f26e"},"schema_version":"1.0","source":{"id":"1208.3655","kind":"arxiv","version":2}},"canonical_sha256":"fefc5674b468fadd1a3a10d29ff99cc0f5e6f861bc1546c34deac0e66c3de076","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fefc5674b468fadd1a3a10d29ff99cc0f5e6f861bc1546c34deac0e66c3de076","first_computed_at":"2026-05-18T01:55:09.695389Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:55:09.695389Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cUtqZkfe7UgyQPDbtkBIUXtlVUM9cfnTrSBdfL9KzWc2Z4QQnh8FmUOkGgaZKJLrQF3W5ZkbtuaHtoCDtwwbCA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:55:09.695941Z","signed_message":"canonical_sha256_bytes"},"source_id":"1208.3655","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4640f7f6f1af4582a446e5132516f22716bfcc7cdf9e91bfeb36280b6957461c","sha256:94be744de9838009ad863ce6772f9a45e53733149062947bdb6376b325c8c2e1"],"state_sha256":"0f50a585f30dcac45f3a87ca266283ae10f799ee5c4efeab099d141ed25b6534"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rtrFticg0imuSyHAuv4MG/jl+Ik0yu2E3PQ/QFUsvum73lkS3FBxsGCZMxCBj15bLuw4y87LjnagQBDF1dBEDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T22:33:09.001339Z","bundle_sha256":"5ac87e8eb2f155e85e2ecdf35723323a28c8c54b83f31c437295baa26c605165"}}