{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:PRCVORW4W75UJNRJVGF6AZLUTD","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":"277f95f6ce7820ae235c4e6c7623077442eedc79aae99d7581e0eba6c1e14b94","cross_cats_sorted":["astro-ph.EP","astro-ph.GA"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-12-16T19:00:00Z","title_canon_sha256":"675d04153e49ffbed15f4a974395ec6d736d9cb5efeeb050404420334576e281"},"schema_version":"1.0","source":{"id":"2012.09166","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2012.09166","created_at":"2026-07-05T02:04:49Z"},{"alias_kind":"arxiv_version","alias_value":"2012.09166v1","created_at":"2026-07-05T02:04:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2012.09166","created_at":"2026-07-05T02:04:49Z"},{"alias_kind":"pith_short_12","alias_value":"PRCVORW4W75U","created_at":"2026-07-05T02:04:49Z"},{"alias_kind":"pith_short_16","alias_value":"PRCVORW4W75UJNRJ","created_at":"2026-07-05T02:04:49Z"},{"alias_kind":"pith_short_8","alias_value":"PRCVORW4","created_at":"2026-07-05T02:04:49Z"}],"graph_snapshots":[{"event_id":"sha256:50d3a353d47f1bb30c6a87e3776614fe0f7d06b89ebd4d5d8d23e1f3526d18be","target":"graph","created_at":"2026-07-05T02:04:49Z","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/2012.09166/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A recent survey of the inner $0.35\\times0.35$pc of the NGC 2024 star forming region revealed two distinct millimetre continuum disc populations that appear to be spatially segregated by the boundary of a dense cloud. The eastern (and more embedded) population is $\\sim0.2-0.5$Myr old, with an ALMA mm continuum disc detection rate of about $45\\,$per cent. However this drops to only $\\sim15$per cent in the 1Myr western population. When presenting this result, van Terwisga et al. (2020) suggested that the two main UV sources, IRS 1 (a B0.5V star in the western region) and IRS 2b (an O8V star in th","authors_text":"Andrew D. Sellek, Andrew J. Winter, Cathie J. Clarke, Dean C. Hines, Giulia Ballabio, Jinyoung S. Kim, Karl R. Stapelfeldt, Thomas J. Haworth","cross_cats":["astro-ph.EP","astro-ph.GA"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-12-16T19:00:00Z","title":"Proplyds in the Flame Nebula NGC 2024"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2012.09166","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":"sha256:79a33bab490f0e723843438cbdf51f9aa569c4824a711f0a96a36527cfc293a7","target":"record","created_at":"2026-07-05T02:04:49Z","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":"277f95f6ce7820ae235c4e6c7623077442eedc79aae99d7581e0eba6c1e14b94","cross_cats_sorted":["astro-ph.EP","astro-ph.GA"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-12-16T19:00:00Z","title_canon_sha256":"675d04153e49ffbed15f4a974395ec6d736d9cb5efeeb050404420334576e281"},"schema_version":"1.0","source":{"id":"2012.09166","kind":"arxiv","version":1}},"canonical_sha256":"7c455746dcb7fb44b629a98be0657498d3f20a545e6fb9a605b39ac5d06cd148","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7c455746dcb7fb44b629a98be0657498d3f20a545e6fb9a605b39ac5d06cd148","first_computed_at":"2026-07-05T02:04:49.404558Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:04:49.404558Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wVvdHq3+E76SSG/2lDWIOjbeYSibm+osS2aprdr1FPJ2u0w106GgUNN5ZfoI+Unlr1KPW7zOXHCKPI86RoJxBw==","signature_status":"signed_v1","signed_at":"2026-07-05T02:04:49.404969Z","signed_message":"canonical_sha256_bytes"},"source_id":"2012.09166","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:79a33bab490f0e723843438cbdf51f9aa569c4824a711f0a96a36527cfc293a7","sha256:50d3a353d47f1bb30c6a87e3776614fe0f7d06b89ebd4d5d8d23e1f3526d18be"],"state_sha256":"33b9994eb8c334a87761e3b5168e3347407b95c400983b721481831188dcb1b1"}