{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:B67RG25E7CNWNR6RMR6YUIA22X","short_pith_number":"pith:B67RG25E","canonical_record":{"source":{"id":"2502.00243","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2025-02-01T00:48:05Z","cross_cats_sorted":["physics.data-an"],"title_canon_sha256":"e5498cb08e8e620bfc981692f82daa58cb94b918fa19badd4ab10f4398e81c05","abstract_canon_sha256":"37629e892503a4842eb445a107f0d80188fb2846b7631dcda674b91e3d82babd"},"schema_version":"1.0"},"canonical_sha256":"0fbf136ba4f89b66c7d1647d8a201ad5c5bd23e1b8d0e37ed821179d8bde91a5","source":{"kind":"arxiv","id":"2502.00243","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2502.00243","created_at":"2026-07-05T10:09:16Z"},{"alias_kind":"arxiv_version","alias_value":"2502.00243v1","created_at":"2026-07-05T10:09:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2502.00243","created_at":"2026-07-05T10:09:16Z"},{"alias_kind":"pith_short_12","alias_value":"B67RG25E7CNW","created_at":"2026-07-05T10:09:16Z"},{"alias_kind":"pith_short_16","alias_value":"B67RG25E7CNWNR6R","created_at":"2026-07-05T10:09:16Z"},{"alias_kind":"pith_short_8","alias_value":"B67RG25E","created_at":"2026-07-05T10:09:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:B67RG25E7CNWNR6RMR6YUIA22X","target":"record","payload":{"canonical_record":{"source":{"id":"2502.00243","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2025-02-01T00:48:05Z","cross_cats_sorted":["physics.data-an"],"title_canon_sha256":"e5498cb08e8e620bfc981692f82daa58cb94b918fa19badd4ab10f4398e81c05","abstract_canon_sha256":"37629e892503a4842eb445a107f0d80188fb2846b7631dcda674b91e3d82babd"},"schema_version":"1.0"},"canonical_sha256":"0fbf136ba4f89b66c7d1647d8a201ad5c5bd23e1b8d0e37ed821179d8bde91a5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:09:16.142083Z","signature_b64":"MEsUKjBgX6FrAniaf0nnYiHL1094LRwjzxUw3HItU/WZZBLYqWjheeVDbSF0ioEYkLBtQEyoYQ+0mR7VOvCVAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0fbf136ba4f89b66c7d1647d8a201ad5c5bd23e1b8d0e37ed821179d8bde91a5","last_reissued_at":"2026-07-05T10:09:16.141597Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:09:16.141597Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2502.00243","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":"2026-07-05T10:09:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7EcA2NGBmiiumMUg4y3ylqZkBw8B7vM/465UcfWt439eo6NCgn1xLTOb4Z8pnHxrMkc5vpy8gyF+dmxgpauOAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T19:10:42.451293Z"},"content_sha256":"97490cfce6e508dd65b84dbb919dc01702a531a8378b86d55143aa638bc42750","schema_version":"1.0","event_id":"sha256:97490cfce6e508dd65b84dbb919dc01702a531a8378b86d55143aa638bc42750"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:B67RG25E7CNWNR6RMR6YUIA22X","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Fast Periodicity Detection Algorithm Sensitive to Arbitrary Waveforms","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["physics.data-an"],"primary_cat":"astro-ph.IM","authors_text":"Douglas P. Finkbeiner, Samuel E. Whitebook, Thomas A. Prince","submitted_at":"2025-02-01T00:48:05Z","abstract_excerpt":"A reexamination of period finding algorithms is prompted by new large area astronomical sky surveys that can identify billions of individual sources having a thousand or more observations per source. This large increase in data necessitates fast and efficient period detection algorithms. In this paper, we provide an initial description of an algorithm that is being used for detection of periodic behavior in a sample of 1.5 billion objects using light curves generated from Zwicky Transient Facility (ZTF) data (Bellm et al. 2019; Masci et al. 2018). We call this algorithm \"Fast Periodicity Weigh"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2502.00243","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2502.00243/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T10:09:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uwNkQO2zaAYVBPwcJPOFjKyQ7hNYybACnrIDg5PK+/Nc+XtpNuE9b4Qkjm5ya8RWGJdjrzD327M//G29oK4MCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T19:10:42.451896Z"},"content_sha256":"a481a30c96b0d44d674603ff24d76f9eda7d2251c5537e53572c40306291434b","schema_version":"1.0","event_id":"sha256:a481a30c96b0d44d674603ff24d76f9eda7d2251c5537e53572c40306291434b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/B67RG25E7CNWNR6RMR6YUIA22X/bundle.json","state_url":"https://pith.science/pith/B67RG25E7CNWNR6RMR6YUIA22X/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/B67RG25E7CNWNR6RMR6YUIA22X/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":"2026-08-10T19:10:42Z","links":{"resolver":"https://pith.science/pith/B67RG25E7CNWNR6RMR6YUIA22X","bundle":"https://pith.science/pith/B67RG25E7CNWNR6RMR6YUIA22X/bundle.json","state":"https://pith.science/pith/B67RG25E7CNWNR6RMR6YUIA22X/state.json","well_known_bundle":"https://pith.science/.well-known/pith/B67RG25E7CNWNR6RMR6YUIA22X/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:B67RG25E7CNWNR6RMR6YUIA22X","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":"37629e892503a4842eb445a107f0d80188fb2846b7631dcda674b91e3d82babd","cross_cats_sorted":["physics.data-an"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2025-02-01T00:48:05Z","title_canon_sha256":"e5498cb08e8e620bfc981692f82daa58cb94b918fa19badd4ab10f4398e81c05"},"schema_version":"1.0","source":{"id":"2502.00243","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2502.00243","created_at":"2026-07-05T10:09:16Z"},{"alias_kind":"arxiv_version","alias_value":"2502.00243v1","created_at":"2026-07-05T10:09:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2502.00243","created_at":"2026-07-05T10:09:16Z"},{"alias_kind":"pith_short_12","alias_value":"B67RG25E7CNW","created_at":"2026-07-05T10:09:16Z"},{"alias_kind":"pith_short_16","alias_value":"B67RG25E7CNWNR6R","created_at":"2026-07-05T10:09:16Z"},{"alias_kind":"pith_short_8","alias_value":"B67RG25E","created_at":"2026-07-05T10:09:16Z"}],"graph_snapshots":[{"event_id":"sha256:a481a30c96b0d44d674603ff24d76f9eda7d2251c5537e53572c40306291434b","target":"graph","created_at":"2026-07-05T10:09:16Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2502.00243/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A reexamination of period finding algorithms is prompted by new large area astronomical sky surveys that can identify billions of individual sources having a thousand or more observations per source. This large increase in data necessitates fast and efficient period detection algorithms. In this paper, we provide an initial description of an algorithm that is being used for detection of periodic behavior in a sample of 1.5 billion objects using light curves generated from Zwicky Transient Facility (ZTF) data (Bellm et al. 2019; Masci et al. 2018). We call this algorithm \"Fast Periodicity Weigh","authors_text":"Douglas P. Finkbeiner, Samuel E. Whitebook, Thomas A. Prince","cross_cats":["physics.data-an"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2025-02-01T00:48:05Z","title":"A Fast Periodicity Detection Algorithm Sensitive to Arbitrary Waveforms"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2502.00243","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":"sha256:97490cfce6e508dd65b84dbb919dc01702a531a8378b86d55143aa638bc42750","target":"record","created_at":"2026-07-05T10:09:16Z","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":"37629e892503a4842eb445a107f0d80188fb2846b7631dcda674b91e3d82babd","cross_cats_sorted":["physics.data-an"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2025-02-01T00:48:05Z","title_canon_sha256":"e5498cb08e8e620bfc981692f82daa58cb94b918fa19badd4ab10f4398e81c05"},"schema_version":"1.0","source":{"id":"2502.00243","kind":"arxiv","version":1}},"canonical_sha256":"0fbf136ba4f89b66c7d1647d8a201ad5c5bd23e1b8d0e37ed821179d8bde91a5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0fbf136ba4f89b66c7d1647d8a201ad5c5bd23e1b8d0e37ed821179d8bde91a5","first_computed_at":"2026-07-05T10:09:16.141597Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:09:16.141597Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"MEsUKjBgX6FrAniaf0nnYiHL1094LRwjzxUw3HItU/WZZBLYqWjheeVDbSF0ioEYkLBtQEyoYQ+0mR7VOvCVAw==","signature_status":"signed_v1","signed_at":"2026-07-05T10:09:16.142083Z","signed_message":"canonical_sha256_bytes"},"source_id":"2502.00243","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:97490cfce6e508dd65b84dbb919dc01702a531a8378b86d55143aa638bc42750","sha256:a481a30c96b0d44d674603ff24d76f9eda7d2251c5537e53572c40306291434b"],"state_sha256":"a4826b7a8249e6a4f8362c62e9d78cc67cbc095105b088daf90a9f6f4f94b2ac"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"97PK2oCCGuxCQdY6DtRSrqyl7t6pt/ggIyYGbUQSq3yyB2v5dFv2LBjl001/blI32wKbsrvXK295f2rFZIpkDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-10T19:10:42.458664Z","bundle_sha256":"2c4527c1ec5af17e44105a6f8db23c80c817ae0899fd528e809d8490e10116b9"}}