{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:GRX2MCOCSNRGBZVRYJYXEV4FKI","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":"4d49a33cff6051ac3dc6a7db6660b55983b2ccb3d3dfe37becbe9c106bd249cf","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2021-04-15T16:30:25Z","title_canon_sha256":"34fe294c1f5e2504db0e2e45d8a35f2601b572bff06685e948cdca023b4420a7"},"schema_version":"1.0","source":{"id":"2104.07577","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2104.07577","created_at":"2026-07-05T02:35:43Z"},{"alias_kind":"arxiv_version","alias_value":"2104.07577v1","created_at":"2026-07-05T02:35:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2104.07577","created_at":"2026-07-05T02:35:43Z"},{"alias_kind":"pith_short_12","alias_value":"GRX2MCOCSNRG","created_at":"2026-07-05T02:35:43Z"},{"alias_kind":"pith_short_16","alias_value":"GRX2MCOCSNRGBZVR","created_at":"2026-07-05T02:35:43Z"},{"alias_kind":"pith_short_8","alias_value":"GRX2MCOC","created_at":"2026-07-05T02:35:43Z"}],"graph_snapshots":[{"event_id":"sha256:c567c75339dd592085e5128ff22bb87f486dc3600ce03c831657e9ec00067756","target":"graph","created_at":"2026-07-05T02:35:43Z","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/2104.07577/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Remote and in-situ observations of cometary gases have revealed the presence of a wealth of complex organic molecules, including carbon chains, alcohols, imines and the amino acid glycine. Such chemical complexity in cometary material implies that impacts by comets could have supplied reagents for prebiotic chemistry to young planetary surfaces. However, the assumption that some of the molecules observed in cometary comae at millimetre wavelengths originate from ices stored inside the nucleus has not yet been proven. In fact, the comae of moderately-active comets reach sufficient densities wit","authors_text":"M. A Cordiner, S. B. Charnley","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2021-04-15T16:30:25Z","title":"Neutral-Neutral Synthesis of Organic Molecules in Cometary Comae"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2104.07577","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":"sha256:6b573677c3b0d764a630bfd2307d9c93aeef318fa26f5fdeacd08972275c951d","target":"record","created_at":"2026-07-05T02:35:43Z","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":"4d49a33cff6051ac3dc6a7db6660b55983b2ccb3d3dfe37becbe9c106bd249cf","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2021-04-15T16:30:25Z","title_canon_sha256":"34fe294c1f5e2504db0e2e45d8a35f2601b572bff06685e948cdca023b4420a7"},"schema_version":"1.0","source":{"id":"2104.07577","kind":"arxiv","version":1}},"canonical_sha256":"346fa609c2936260e6b1c271725785520140c2f462d45ccea10aa657abd01faf","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"346fa609c2936260e6b1c271725785520140c2f462d45ccea10aa657abd01faf","first_computed_at":"2026-07-05T02:35:43.059634Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:35:43.059634Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"E5kZbaD45F/aeGkrAHMBAdfqM/gRjlXUEl0KqbKduqACMINp3SH3fJtPkfBlz+SkczJnYUvapG7JkGHbm1hWDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T02:35:43.059981Z","signed_message":"canonical_sha256_bytes"},"source_id":"2104.07577","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6b573677c3b0d764a630bfd2307d9c93aeef318fa26f5fdeacd08972275c951d","sha256:c567c75339dd592085e5128ff22bb87f486dc3600ce03c831657e9ec00067756"],"state_sha256":"12783903a7cbfd8227c94771499c711c49646827d2087af3cfe229665ca059ba"}