{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:IROUFLB5QMI7OMLD7FFBZBST2P","short_pith_number":"pith:IROUFLB5","schema_version":"1.0","canonical_sha256":"445d42ac3d8311f73163f94a1c8653d3d5048a5748ed92cc3255ee1cb68c84e0","source":{"kind":"arxiv","id":"1110.2644","version":2},"attestation_state":"computed","paper":{"title":"New extended deuterium fractionation model: assessment at dense ISM conditions and sensitivity analysis","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. I. Vasyunin, D.A. Semenov, E. Herbst, T. Albertsson, Th. Henning","submitted_at":"2011-10-12T13:00:20Z","abstract_excerpt":"Observations of deuterated species are useful in probing the temperature, ionization level, evolutionary stage, chemistry, and thermal history of astrophysical environments. The analysis of data from ALMA and other new telescopes requires an elaborate model of deuterium fractionation. This paper presents a publicly available chemical network with multi-deuterated species and an extended, up-to-date set of gas-phase and surface reactions. To test this network, we simulate deuterium fractionation in diverse interstellar sources. Two cases of initial abundances are considered: i) atomic except fo"},"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":"1110.2644","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-10-12T13:00:20Z","cross_cats_sorted":[],"title_canon_sha256":"822712a87098d4540177ed797731eb52bafb87322b6e92296990bb6753546707","abstract_canon_sha256":"ab400afb8aafaba84fe5a422a01e920683ae438f131c812489781e3607933473"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:10:12.379939Z","signature_b64":"Bf5fqyoTMGPHMZMXTke2ajqdg5WsEmgOTcIEdBfM4JZBdu6ozPCfkmL1ECK/DWtujsC9+RQIZMETdJmKGHpADg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"445d42ac3d8311f73163f94a1c8653d3d5048a5748ed92cc3255ee1cb68c84e0","last_reissued_at":"2026-05-18T03:10:12.379340Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:10:12.379340Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"New extended deuterium fractionation model: assessment at dense ISM conditions and sensitivity analysis","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. I. Vasyunin, D.A. Semenov, E. Herbst, T. Albertsson, Th. Henning","submitted_at":"2011-10-12T13:00:20Z","abstract_excerpt":"Observations of deuterated species are useful in probing the temperature, ionization level, evolutionary stage, chemistry, and thermal history of astrophysical environments. The analysis of data from ALMA and other new telescopes requires an elaborate model of deuterium fractionation. This paper presents a publicly available chemical network with multi-deuterated species and an extended, up-to-date set of gas-phase and surface reactions. To test this network, we simulate deuterium fractionation in diverse interstellar sources. Two cases of initial abundances are considered: i) atomic except fo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1110.2644","kind":"arxiv","version":2},"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":"1110.2644","created_at":"2026-05-18T03:10:12.379411+00:00"},{"alias_kind":"arxiv_version","alias_value":"1110.2644v2","created_at":"2026-05-18T03:10:12.379411+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1110.2644","created_at":"2026-05-18T03:10:12.379411+00:00"},{"alias_kind":"pith_short_12","alias_value":"IROUFLB5QMI7","created_at":"2026-05-18T12:26:32.869790+00:00"},{"alias_kind":"pith_short_16","alias_value":"IROUFLB5QMI7OMLD","created_at":"2026-05-18T12:26:32.869790+00:00"},{"alias_kind":"pith_short_8","alias_value":"IROUFLB5","created_at":"2026-05-18T12:26:32.869790+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/IROUFLB5QMI7OMLD7FFBZBST2P","json":"https://pith.science/pith/IROUFLB5QMI7OMLD7FFBZBST2P.json","graph_json":"https://pith.science/api/pith-number/IROUFLB5QMI7OMLD7FFBZBST2P/graph.json","events_json":"https://pith.science/api/pith-number/IROUFLB5QMI7OMLD7FFBZBST2P/events.json","paper":"https://pith.science/paper/IROUFLB5"},"agent_actions":{"view_html":"https://pith.science/pith/IROUFLB5QMI7OMLD7FFBZBST2P","download_json":"https://pith.science/pith/IROUFLB5QMI7OMLD7FFBZBST2P.json","view_paper":"https://pith.science/paper/IROUFLB5","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1110.2644&json=true","fetch_graph":"https://pith.science/api/pith-number/IROUFLB5QMI7OMLD7FFBZBST2P/graph.json","fetch_events":"https://pith.science/api/pith-number/IROUFLB5QMI7OMLD7FFBZBST2P/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/IROUFLB5QMI7OMLD7FFBZBST2P/action/timestamp_anchor","attest_storage":"https://pith.science/pith/IROUFLB5QMI7OMLD7FFBZBST2P/action/storage_attestation","attest_author":"https://pith.science/pith/IROUFLB5QMI7OMLD7FFBZBST2P/action/author_attestation","sign_citation":"https://pith.science/pith/IROUFLB5QMI7OMLD7FFBZBST2P/action/citation_signature","submit_replication":"https://pith.science/pith/IROUFLB5QMI7OMLD7FFBZBST2P/action/replication_record"}},"created_at":"2026-05-18T03:10:12.379411+00:00","updated_at":"2026-05-18T03:10:12.379411+00:00"}