{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2025:KSJFXSPUPY3KJZDC7R5CKHH5YQ","short_pith_number":"pith:KSJFXSPU","schema_version":"1.0","canonical_sha256":"54925bc9f47e36a4e462fc7a251cfdc43617415e8f84c83b2614009f02a1a505","source":{"kind":"arxiv","id":"2507.08727","version":1},"attestation_state":"computed","paper":{"title":"Constraining the survival of HCN during cometary impacts","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Amy Bonsor, Auriol S. P. Rae, Catriona H. McDonald, Paul B. Rimmer, Richard J. Anslow, Zoe R. Todd","submitted_at":"2025-07-11T16:27:30Z","abstract_excerpt":"Cometary impacts have been invoked as an atmosphere-independent method of stockpiling hydrogen cyanide (HCN), a key prebiotic feedstock molecule, into environments favourable for the onset of prebiotic chemistry on the early Earth. This work revisits the prospects for cometary delivery of HCN through new impacts simulations of idealised cometary bodies using the shock physics code iSALE combined with simple chemical modelling. Using temperature and pressure profiles for material within spherical, non-porous comets with a high resolution of Lagrangian tracer particles, we assess the survival ra"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2507.08727","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-07-11T16:27:30Z","cross_cats_sorted":[],"title_canon_sha256":"4a3ae5967a52b762449fa946fdab43ac0bfd782823157265e6e4a59e1609cad5","abstract_canon_sha256":"746cf9875a3f6464be34ed03a83de34d35919c692bfc142d73dee035d26fe8b0"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:35:45.566969Z","signature_b64":"9uzJ0CZi2KfZTfaZUVdPVNE0krw0O5aCsEwvzRPYcyiWTFZVH9I8AG+pU0Orx+4MagzByBJ9n4NDYgy+ucnzCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"54925bc9f47e36a4e462fc7a251cfdc43617415e8f84c83b2614009f02a1a505","last_reissued_at":"2026-07-05T11:35:45.566512Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:35:45.566512Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Constraining the survival of HCN during cometary impacts","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Amy Bonsor, Auriol S. P. Rae, Catriona H. McDonald, Paul B. Rimmer, Richard J. Anslow, Zoe R. Todd","submitted_at":"2025-07-11T16:27:30Z","abstract_excerpt":"Cometary impacts have been invoked as an atmosphere-independent method of stockpiling hydrogen cyanide (HCN), a key prebiotic feedstock molecule, into environments favourable for the onset of prebiotic chemistry on the early Earth. This work revisits the prospects for cometary delivery of HCN through new impacts simulations of idealised cometary bodies using the shock physics code iSALE combined with simple chemical modelling. Using temperature and pressure profiles for material within spherical, non-porous comets with a high resolution of Lagrangian tracer particles, we assess the survival ra"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.08727","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2507.08727/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"2507.08727","created_at":"2026-07-05T11:35:45.566569+00:00"},{"alias_kind":"arxiv_version","alias_value":"2507.08727v1","created_at":"2026-07-05T11:35:45.566569+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.08727","created_at":"2026-07-05T11:35:45.566569+00:00"},{"alias_kind":"pith_short_12","alias_value":"KSJFXSPUPY3K","created_at":"2026-07-05T11:35:45.566569+00:00"},{"alias_kind":"pith_short_16","alias_value":"KSJFXSPUPY3KJZDC","created_at":"2026-07-05T11:35:45.566569+00:00"},{"alias_kind":"pith_short_8","alias_value":"KSJFXSPU","created_at":"2026-07-05T11:35:45.566569+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/KSJFXSPUPY3KJZDC7R5CKHH5YQ","json":"https://pith.science/pith/KSJFXSPUPY3KJZDC7R5CKHH5YQ.json","graph_json":"https://pith.science/api/pith-number/KSJFXSPUPY3KJZDC7R5CKHH5YQ/graph.json","events_json":"https://pith.science/api/pith-number/KSJFXSPUPY3KJZDC7R5CKHH5YQ/events.json","paper":"https://pith.science/paper/KSJFXSPU"},"agent_actions":{"view_html":"https://pith.science/pith/KSJFXSPUPY3KJZDC7R5CKHH5YQ","download_json":"https://pith.science/pith/KSJFXSPUPY3KJZDC7R5CKHH5YQ.json","view_paper":"https://pith.science/paper/KSJFXSPU","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2507.08727&json=true","fetch_graph":"https://pith.science/api/pith-number/KSJFXSPUPY3KJZDC7R5CKHH5YQ/graph.json","fetch_events":"https://pith.science/api/pith-number/KSJFXSPUPY3KJZDC7R5CKHH5YQ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/KSJFXSPUPY3KJZDC7R5CKHH5YQ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/KSJFXSPUPY3KJZDC7R5CKHH5YQ/action/storage_attestation","attest_author":"https://pith.science/pith/KSJFXSPUPY3KJZDC7R5CKHH5YQ/action/author_attestation","sign_citation":"https://pith.science/pith/KSJFXSPUPY3KJZDC7R5CKHH5YQ/action/citation_signature","submit_replication":"https://pith.science/pith/KSJFXSPUPY3KJZDC7R5CKHH5YQ/action/replication_record"}},"created_at":"2026-07-05T11:35:45.566569+00:00","updated_at":"2026-07-05T11:35:45.566569+00:00"}