{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:JYKLJ2CQVPLLGMMRYWGP6CAQ4A","short_pith_number":"pith:JYKLJ2CQ","schema_version":"1.0","canonical_sha256":"4e14b4e850abd6b33191c58cff0810e0044c42aafde97c40b5a56df502863003","source":{"kind":"arxiv","id":"1611.07516","version":1},"attestation_state":"computed","paper":{"title":"Meteorites and the RNA World: A Thermodynamic Model of Nucleobase Synthesis within Planetesimals","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Ben K. D. Pearce, Ralph E. Pudritz","submitted_at":"2016-11-22T20:59:58Z","abstract_excerpt":"The possible meteorite parent body origin of Earth's pregenetic nucleobases is substantiated by the guanine (G), adenine (A) and uracil (U) measured in various meteorites. Cytosine (C) and thymine (T) however are absent in meteorites, making the emergence of a RNA and later RNA/DNA/protein world problematic. We investigate the meteorite parent body (planetesimal) origin of all nucleobases by computationally modeling 18 reactions that potentially contribute to nucleobase formation in such environments. Out of this list, we identify the two most important reactions for each nucleobase and find t"},"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":"1611.07516","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2016-11-22T20:59:58Z","cross_cats_sorted":[],"title_canon_sha256":"8eb5cd0c004f6b6202ccb1c9115f4e76a03948b908d2c3c76cc10db1abfe84fa","abstract_canon_sha256":"173ee0dbfb9f5f46250acb7f9a9c7bbe5c8fdb6b036afb81d065af0bf672f184"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:57:19.910379Z","signature_b64":"eIS47pXRAVY7ZD2uW7rtc2s6iKLwoSMwxv96e479knUJkcvhWMOI1PsVAyv48ZAyNRfavUFAQIsju3Tf3vQEAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4e14b4e850abd6b33191c58cff0810e0044c42aafde97c40b5a56df502863003","last_reissued_at":"2026-05-18T00:57:19.909803Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:57:19.909803Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Meteorites and the RNA World: A Thermodynamic Model of Nucleobase Synthesis within Planetesimals","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Ben K. D. Pearce, Ralph E. Pudritz","submitted_at":"2016-11-22T20:59:58Z","abstract_excerpt":"The possible meteorite parent body origin of Earth's pregenetic nucleobases is substantiated by the guanine (G), adenine (A) and uracil (U) measured in various meteorites. Cytosine (C) and thymine (T) however are absent in meteorites, making the emergence of a RNA and later RNA/DNA/protein world problematic. We investigate the meteorite parent body (planetesimal) origin of all nucleobases by computationally modeling 18 reactions that potentially contribute to nucleobase formation in such environments. Out of this list, we identify the two most important reactions for each nucleobase and find t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1611.07516","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":""},"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":"1611.07516","created_at":"2026-05-18T00:57:19.909901+00:00"},{"alias_kind":"arxiv_version","alias_value":"1611.07516v1","created_at":"2026-05-18T00:57:19.909901+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1611.07516","created_at":"2026-05-18T00:57:19.909901+00:00"},{"alias_kind":"pith_short_12","alias_value":"JYKLJ2CQVPLL","created_at":"2026-05-18T12:30:25.849896+00:00"},{"alias_kind":"pith_short_16","alias_value":"JYKLJ2CQVPLLGMMR","created_at":"2026-05-18T12:30:25.849896+00:00"},{"alias_kind":"pith_short_8","alias_value":"JYKLJ2CQ","created_at":"2026-05-18T12:30:25.849896+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/JYKLJ2CQVPLLGMMRYWGP6CAQ4A","json":"https://pith.science/pith/JYKLJ2CQVPLLGMMRYWGP6CAQ4A.json","graph_json":"https://pith.science/api/pith-number/JYKLJ2CQVPLLGMMRYWGP6CAQ4A/graph.json","events_json":"https://pith.science/api/pith-number/JYKLJ2CQVPLLGMMRYWGP6CAQ4A/events.json","paper":"https://pith.science/paper/JYKLJ2CQ"},"agent_actions":{"view_html":"https://pith.science/pith/JYKLJ2CQVPLLGMMRYWGP6CAQ4A","download_json":"https://pith.science/pith/JYKLJ2CQVPLLGMMRYWGP6CAQ4A.json","view_paper":"https://pith.science/paper/JYKLJ2CQ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1611.07516&json=true","fetch_graph":"https://pith.science/api/pith-number/JYKLJ2CQVPLLGMMRYWGP6CAQ4A/graph.json","fetch_events":"https://pith.science/api/pith-number/JYKLJ2CQVPLLGMMRYWGP6CAQ4A/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/JYKLJ2CQVPLLGMMRYWGP6CAQ4A/action/timestamp_anchor","attest_storage":"https://pith.science/pith/JYKLJ2CQVPLLGMMRYWGP6CAQ4A/action/storage_attestation","attest_author":"https://pith.science/pith/JYKLJ2CQVPLLGMMRYWGP6CAQ4A/action/author_attestation","sign_citation":"https://pith.science/pith/JYKLJ2CQVPLLGMMRYWGP6CAQ4A/action/citation_signature","submit_replication":"https://pith.science/pith/JYKLJ2CQVPLLGMMRYWGP6CAQ4A/action/replication_record"}},"created_at":"2026-05-18T00:57:19.909901+00:00","updated_at":"2026-05-18T00:57:19.909901+00:00"}