{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:JOFISP763JRLZHL24NWNXZBXAM","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":"2e0807d68f699a51f469cf3dbd85f2ce5216558243693e7d9a91e1da22b15260","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-12-08T18:39:11Z","title_canon_sha256":"5569b39d9689658fda276b0a48d0baedeb7793e37111d8bc2bfbb545c9cb5f05"},"schema_version":"1.0","source":{"id":"2412.06019","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2412.06019","created_at":"2026-07-05T09:46:13Z"},{"alias_kind":"arxiv_version","alias_value":"2412.06019v1","created_at":"2026-07-05T09:46:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2412.06019","created_at":"2026-07-05T09:46:13Z"},{"alias_kind":"pith_short_12","alias_value":"JOFISP763JRL","created_at":"2026-07-05T09:46:13Z"},{"alias_kind":"pith_short_16","alias_value":"JOFISP763JRLZHL2","created_at":"2026-07-05T09:46:13Z"},{"alias_kind":"pith_short_8","alias_value":"JOFISP76","created_at":"2026-07-05T09:46:13Z"}],"graph_snapshots":[{"event_id":"sha256:41b6ce8c1b2df4204d362fc47a8db51c84ff134701ac3d26239f96c6e70a7625","target":"graph","created_at":"2026-07-05T09:46:13Z","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/2412.06019/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Using the Zwicky Transient Facility (ZTF), Burdge et al. (2020) discovered systems of eclipsing double white dwarfs (EDWDs) having orbital periods <1 hr. From the properties of 3 of the discovered systems, I estimate a merger rate of DWDs, per WD in the Galaxy, of $R_{\\rm merge, WD}\\approx8\\times 10^{-12}$yr$^{-1}$, or a rate per unit stellar mass in the Galaxy, of $R_{\\rm merge, M*}\\approx4.8\\times 10^{-13}$yr$^{-1}$M$_\\odot^{-1}$.This likely somewhat underestimates the rate, because of several known effects that work against EDWD detection in ZTF. The derived merger rate is within the uncert","authors_text":"Dan Maoz","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-12-08T18:39:11Z","title":"The Double-White-Dwarf Merger Rate from ZTF"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2412.06019","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":"sha256:554429d7bbd64e2f9415a046bc505a4d905af87057b318c3f71f2f64827dbae7","target":"record","created_at":"2026-07-05T09:46:13Z","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":"2e0807d68f699a51f469cf3dbd85f2ce5216558243693e7d9a91e1da22b15260","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-12-08T18:39:11Z","title_canon_sha256":"5569b39d9689658fda276b0a48d0baedeb7793e37111d8bc2bfbb545c9cb5f05"},"schema_version":"1.0","source":{"id":"2412.06019","kind":"arxiv","version":1}},"canonical_sha256":"4b8a893ffeda62bc9d7ae36cdbe437032b0dcf6086379654863239fc5d69cf87","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4b8a893ffeda62bc9d7ae36cdbe437032b0dcf6086379654863239fc5d69cf87","first_computed_at":"2026-07-05T09:46:13.099501Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:46:13.099501Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"52FAud7qWXbZWmS/Qp/VJA8XWW/CJ/6azbGRy2CIbla7qBO45cCcLqsAE7fkqdjLwruJBfw8ahP9C0dDTW19Dg==","signature_status":"signed_v1","signed_at":"2026-07-05T09:46:13.099978Z","signed_message":"canonical_sha256_bytes"},"source_id":"2412.06019","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:554429d7bbd64e2f9415a046bc505a4d905af87057b318c3f71f2f64827dbae7","sha256:41b6ce8c1b2df4204d362fc47a8db51c84ff134701ac3d26239f96c6e70a7625"],"state_sha256":"cf1946ac84317f85cd3028a68c88ba470db7663749bad0a517208a72faef6a3c"}