{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:5HLWXAWDSTCTD5XC66V5Q2JF26","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":"b09d1ca01e2a956cdbd2a285608294236603fb9a6e8670f48b2c48436c3ecbbf","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2021-11-30T10:33:29Z","title_canon_sha256":"7f796a00f3189194282e4ce7b599e651a2d5f007d1850b53e9451b6564fc75c6"},"schema_version":"1.0","source":{"id":"2111.15269","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2111.15269","created_at":"2026-07-05T03:36:24Z"},{"alias_kind":"arxiv_version","alias_value":"2111.15269v1","created_at":"2026-07-05T03:36:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2111.15269","created_at":"2026-07-05T03:36:24Z"},{"alias_kind":"pith_short_12","alias_value":"5HLWXAWDSTCT","created_at":"2026-07-05T03:36:24Z"},{"alias_kind":"pith_short_16","alias_value":"5HLWXAWDSTCTD5XC","created_at":"2026-07-05T03:36:24Z"},{"alias_kind":"pith_short_8","alias_value":"5HLWXAWD","created_at":"2026-07-05T03:36:24Z"}],"graph_snapshots":[{"event_id":"sha256:85d3ddc6f95175b653661dd8483e0b2199087a991a8e7f92dde654564dbfbd73","target":"graph","created_at":"2026-07-05T03:36:24Z","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/2111.15269/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We are preparing a telescope system to carry out a survey of detection and analysis of lunar impact flashes. In the framework of this project, here we present all necessary methods to automatically identify these luminous events, their lunar impact coordinates, the origin of the impacting meteoroids, as well as the estimation of their physical properties such as mass and size. We tested our methods against confirmed impact events and constructed the meteoroid size frequency distribution of impactors using literature data of the last 20 years. In addition, we present the first lunar impact even","authors_text":"Antony Cook, Chrysa Avdellidou, Daniel Sheward, Edhah Munaibari, Jeremie Vaubaillon, Marco Delbo, Mark Wieczorek, Paul Hayne, Raven Larson","cross_cats":["astro-ph.IM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2021-11-30T10:33:29Z","title":"Impacts on the Moon: analysis methods and size distribution of impactors"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2111.15269","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":"sha256:9da13f76cca5cb5f983d295f4ba42e6a3dd869787eff527f4bf29827e7dc6325","target":"record","created_at":"2026-07-05T03:36:24Z","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":"b09d1ca01e2a956cdbd2a285608294236603fb9a6e8670f48b2c48436c3ecbbf","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2021-11-30T10:33:29Z","title_canon_sha256":"7f796a00f3189194282e4ce7b599e651a2d5f007d1850b53e9451b6564fc75c6"},"schema_version":"1.0","source":{"id":"2111.15269","kind":"arxiv","version":1}},"canonical_sha256":"e9d76b82c394c531f6e2f7abd86925d78f76e683869460b0d12a30c5e2b5f7a5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e9d76b82c394c531f6e2f7abd86925d78f76e683869460b0d12a30c5e2b5f7a5","first_computed_at":"2026-07-05T03:36:24.542569Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:36:24.542569Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dYDDRaJnKolzOWy0LqcFFWFiFnaAxDBxu+EN+s1J4Q/tQiZUHjkSJKKrrmVzhsTUOStSvHlF++3YzNr4zATPDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T03:36:24.542937Z","signed_message":"canonical_sha256_bytes"},"source_id":"2111.15269","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9da13f76cca5cb5f983d295f4ba42e6a3dd869787eff527f4bf29827e7dc6325","sha256:85d3ddc6f95175b653661dd8483e0b2199087a991a8e7f92dde654564dbfbd73"],"state_sha256":"453f9aa701d36615290d0c739001922054d2cf32ad84c2b587c7d262fcf735e6"}