{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:MFRLMN4RIFPLFLLNSRP6OWODLZ","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":"1c79e376f61ac74f956e5d1b10d11671772cab6591117eab5e99c89c90621dee","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-07-03T07:59:29Z","title_canon_sha256":"d14874e3eafeb5e048df0f83f937ad17d409c8a58ab7a783c5970e2fd6782c95"},"schema_version":"1.0","source":{"id":"2007.01537","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2007.01537","created_at":"2026-07-05T01:48:48Z"},{"alias_kind":"arxiv_version","alias_value":"2007.01537v1","created_at":"2026-07-05T01:48:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.01537","created_at":"2026-07-05T01:48:48Z"},{"alias_kind":"pith_short_12","alias_value":"MFRLMN4RIFPL","created_at":"2026-07-05T01:48:48Z"},{"alias_kind":"pith_short_16","alias_value":"MFRLMN4RIFPLFLLN","created_at":"2026-07-05T01:48:48Z"},{"alias_kind":"pith_short_8","alias_value":"MFRLMN4R","created_at":"2026-07-05T01:48:48Z"}],"graph_snapshots":[{"event_id":"sha256:7ad1668b15ac1254b7663d022292822a282821b57b6a1ac683880e77ba845d46","target":"graph","created_at":"2026-07-05T01:48:48Z","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/2007.01537/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Variable sources probe a wide range of astrophysical phenomena. We present a catalog of over ten million variable source candidates found in Data Release 1 (DR1) of the Zwicky Transient Facility (ZTF). We perform a periodicity search up to a frequency of 160 day^-1, and we classify the light curves into erratic and smooth variables. We also present variability indicators and the results of a periodicity search, up to a frequency of 5 day^-1, for about 1 billion sources in the ZTF-DR1 light curve database. We present several new short-period (<90 min) candidates, and about 60 new dwarf nova can","authors_text":"Avishay Gal-Yam, Eran O. Ofek, Frank Masci, Guy Nir, Maayane Soumagnac, Peter Nugent, Shrinivas R. Kulkarni","cross_cats":["astro-ph.IM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-07-03T07:59:29Z","title":"A catalog of over ten million variable source candidates in ZTF data release 1"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.01537","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:df1d6d5118b2d0c07de3aeb339e5676e192cc1f82acc709739ede3bd97d3d616","target":"record","created_at":"2026-07-05T01:48:48Z","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":"1c79e376f61ac74f956e5d1b10d11671772cab6591117eab5e99c89c90621dee","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-07-03T07:59:29Z","title_canon_sha256":"d14874e3eafeb5e048df0f83f937ad17d409c8a58ab7a783c5970e2fd6782c95"},"schema_version":"1.0","source":{"id":"2007.01537","kind":"arxiv","version":1}},"canonical_sha256":"6162b63791415eb2ad6d945fe759c35e4b7797d94e635721ac90327285d62397","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6162b63791415eb2ad6d945fe759c35e4b7797d94e635721ac90327285d62397","first_computed_at":"2026-07-05T01:48:48.396678Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:48:48.396678Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"OoDLJHe29dHVER/YCcxmPSOEmXSK3TaAk/6Twf8wfJ1rdMXmSYFck9UAtyokRpxeFWP8/GZoOLh+TFuVhryqCQ==","signature_status":"signed_v1","signed_at":"2026-07-05T01:48:48.397213Z","signed_message":"canonical_sha256_bytes"},"source_id":"2007.01537","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:df1d6d5118b2d0c07de3aeb339e5676e192cc1f82acc709739ede3bd97d3d616","sha256:7ad1668b15ac1254b7663d022292822a282821b57b6a1ac683880e77ba845d46"],"state_sha256":"435ad8dcc00f39ae3f2bb0885787614b18f8fd9d627ee66cdc4ed6a0370847d3"}