{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2004:XVN3Z2OVDNEET2BEKOKQH6LUE3","short_pith_number":"pith:XVN3Z2OV","schema_version":"1.0","canonical_sha256":"bd5bbce9d51b4849e824539503f97426e520f8c32a660082a282b577776146a5","source":{"kind":"arxiv","id":"astro-ph/0401309","version":1},"attestation_state":"computed","paper":{"title":"Carbon budget and carbon chemistry in Photon Dominated Regions","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. Abergel, D. Fosse, D. Teyssier, E. Roueff, J. Pety, M. Gerin","submitted_at":"2004-01-15T17:31:49Z","abstract_excerpt":"We present a study of small carbon chains and rings in Photon Dominated Regions (PDRs) performed at millimetre wavelengths. Our sample consists of the Horsehead nebula (B33), the rho,Oph L1688 cloud interface, and the cometary-shaped cloud IC63. Using the IRAM 30-m telescope, the SEST and the Effelsberg 100-m teles cope at Effelsberg., we mapped the emission of \\cch, c-C3H2 and C4H, and searched for heavy hydrocarbons such as c-C3H, l-C3H, l-C3H2, l-C4H2 and C6H. The large scale maps show that small hydrocarbons are present until the edge of all PDRs, which is surprising as they are expected 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":"astro-ph/0401309","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2004-01-15T17:31:49Z","cross_cats_sorted":[],"title_canon_sha256":"0b08fcd482ee95c4990f6c4b1e94ff3363e8a8e41639df86adb24f630522d885","abstract_canon_sha256":"ee73da54a7896233cd3732ab971f77a6145e71bc8730edd3fdcb8d83744350ab"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:42:51.193713Z","signature_b64":"PIckQiAnZeZ9ERLl9mz/fbfwqVDbGQDj548xk8tFSkaIKoAs1JcnrE+gPy10X+rVDBhJjQi98NMpxz6qniqHBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bd5bbce9d51b4849e824539503f97426e520f8c32a660082a282b577776146a5","last_reissued_at":"2026-07-04T16:42:51.193295Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:42:51.193295Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Carbon budget and carbon chemistry in Photon Dominated Regions","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. Abergel, D. Fosse, D. Teyssier, E. Roueff, J. Pety, M. Gerin","submitted_at":"2004-01-15T17:31:49Z","abstract_excerpt":"We present a study of small carbon chains and rings in Photon Dominated Regions (PDRs) performed at millimetre wavelengths. Our sample consists of the Horsehead nebula (B33), the rho,Oph L1688 cloud interface, and the cometary-shaped cloud IC63. Using the IRAM 30-m telescope, the SEST and the Effelsberg 100-m teles cope at Effelsberg., we mapped the emission of \\cch, c-C3H2 and C4H, and searched for heavy hydrocarbons such as c-C3H, l-C3H, l-C3H2, l-C4H2 and C6H. The large scale maps show that small hydrocarbons are present until the edge of all PDRs, which is surprising as they are expected t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0401309","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/astro-ph/0401309/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":"astro-ph/0401309","created_at":"2026-07-04T16:42:51.193365+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0401309v1","created_at":"2026-07-04T16:42:51.193365+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0401309","created_at":"2026-07-04T16:42:51.193365+00:00"},{"alias_kind":"pith_short_12","alias_value":"XVN3Z2OVDNEE","created_at":"2026-07-04T16:42:51.193365+00:00"},{"alias_kind":"pith_short_16","alias_value":"XVN3Z2OVDNEET2BE","created_at":"2026-07-04T16:42:51.193365+00:00"},{"alias_kind":"pith_short_8","alias_value":"XVN3Z2OV","created_at":"2026-07-04T16:42:51.193365+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2605.18438","citing_title":"Velocity-resolved [O I] 63,145 um, [C II] 158 um, and OH mapping along the Orion BN/KL explosive outflow and irradiated shocks","ref_index":294,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/XVN3Z2OVDNEET2BEKOKQH6LUE3","json":"https://pith.science/pith/XVN3Z2OVDNEET2BEKOKQH6LUE3.json","graph_json":"https://pith.science/api/pith-number/XVN3Z2OVDNEET2BEKOKQH6LUE3/graph.json","events_json":"https://pith.science/api/pith-number/XVN3Z2OVDNEET2BEKOKQH6LUE3/events.json","paper":"https://pith.science/paper/XVN3Z2OV"},"agent_actions":{"view_html":"https://pith.science/pith/XVN3Z2OVDNEET2BEKOKQH6LUE3","download_json":"https://pith.science/pith/XVN3Z2OVDNEET2BEKOKQH6LUE3.json","view_paper":"https://pith.science/paper/XVN3Z2OV","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/0401309&json=true","fetch_graph":"https://pith.science/api/pith-number/XVN3Z2OVDNEET2BEKOKQH6LUE3/graph.json","fetch_events":"https://pith.science/api/pith-number/XVN3Z2OVDNEET2BEKOKQH6LUE3/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/XVN3Z2OVDNEET2BEKOKQH6LUE3/action/timestamp_anchor","attest_storage":"https://pith.science/pith/XVN3Z2OVDNEET2BEKOKQH6LUE3/action/storage_attestation","attest_author":"https://pith.science/pith/XVN3Z2OVDNEET2BEKOKQH6LUE3/action/author_attestation","sign_citation":"https://pith.science/pith/XVN3Z2OVDNEET2BEKOKQH6LUE3/action/citation_signature","submit_replication":"https://pith.science/pith/XVN3Z2OVDNEET2BEKOKQH6LUE3/action/replication_record"}},"created_at":"2026-07-04T16:42:51.193365+00:00","updated_at":"2026-07-04T16:42:51.193365+00:00"}