{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:6YOII4VN7CFLJUQSPQPFHIWQEN","short_pith_number":"pith:6YOII4VN","schema_version":"1.0","canonical_sha256":"f61c8472adf88ab4d2127c1e53a2d0237f718afdee8c519fc16bd002dc9d4267","source":{"kind":"arxiv","id":"1712.08778","version":1},"attestation_state":"computed","paper":{"title":"Chemical modelling of glycolaldehyde and ethylene glycol in star-forming regions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"A. Coutens, D. Qu\\'enard, I. Jim\\'enez-Serra, J. Holdship, J. M. C. Rawlings, M. T. Beltr\\'an, S. Viti, V. M. Rivilla","submitted_at":"2017-12-23T14:12:15Z","abstract_excerpt":"Glycolaldehyde (HOCH$_2$CHO) and ethylene glycol ((CH$_2$OH)$_2$) are two complex organic molecules detected in the hot cores and hot corinos of several star-forming regions. The ethylene glycol/glycolaldehyde abundance ratio seems to show an increase with the source luminosity. In the literature, several surface-chemistry formation mechanisms have been proposed for these two species. With the UCLCHEM chemical code, we explored the different scenarios and compared the predictions for a range of sources of different luminosities with the observations. None of the scenarios reproduce perfectly 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":"1712.08778","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-12-23T14:12:15Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"61e0c1a51f9ca21b57244e1a1180fcfe7ec87a53f861bdda25478cfe84cea70c","abstract_canon_sha256":"846613e4d92ae1a8b519e34e3e74df5779a869686da1497ee10ae70d817b01b1"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:24:14.560238Z","signature_b64":"pWs9Ig/Cd9wnXt5M60421LZsBn9GnErhdcje5aYTmV3pMVSvOb2JgIkTAIo2gKfghnej7/y4GcUUEwJgoVZ8CA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f61c8472adf88ab4d2127c1e53a2d0237f718afdee8c519fc16bd002dc9d4267","last_reissued_at":"2026-05-18T00:24:14.559631Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:24:14.559631Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Chemical modelling of glycolaldehyde and ethylene glycol in star-forming regions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"A. Coutens, D. Qu\\'enard, I. Jim\\'enez-Serra, J. Holdship, J. M. C. Rawlings, M. T. Beltr\\'an, S. Viti, V. M. Rivilla","submitted_at":"2017-12-23T14:12:15Z","abstract_excerpt":"Glycolaldehyde (HOCH$_2$CHO) and ethylene glycol ((CH$_2$OH)$_2$) are two complex organic molecules detected in the hot cores and hot corinos of several star-forming regions. The ethylene glycol/glycolaldehyde abundance ratio seems to show an increase with the source luminosity. In the literature, several surface-chemistry formation mechanisms have been proposed for these two species. With the UCLCHEM chemical code, we explored the different scenarios and compared the predictions for a range of sources of different luminosities with the observations. None of the scenarios reproduce perfectly t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1712.08778","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":"1712.08778","created_at":"2026-05-18T00:24:14.559709+00:00"},{"alias_kind":"arxiv_version","alias_value":"1712.08778v1","created_at":"2026-05-18T00:24:14.559709+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1712.08778","created_at":"2026-05-18T00:24:14.559709+00:00"},{"alias_kind":"pith_short_12","alias_value":"6YOII4VN7CFL","created_at":"2026-05-18T12:31:03.183658+00:00"},{"alias_kind":"pith_short_16","alias_value":"6YOII4VN7CFLJUQS","created_at":"2026-05-18T12:31:03.183658+00:00"},{"alias_kind":"pith_short_8","alias_value":"6YOII4VN","created_at":"2026-05-18T12:31:03.183658+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/6YOII4VN7CFLJUQSPQPFHIWQEN","json":"https://pith.science/pith/6YOII4VN7CFLJUQSPQPFHIWQEN.json","graph_json":"https://pith.science/api/pith-number/6YOII4VN7CFLJUQSPQPFHIWQEN/graph.json","events_json":"https://pith.science/api/pith-number/6YOII4VN7CFLJUQSPQPFHIWQEN/events.json","paper":"https://pith.science/paper/6YOII4VN"},"agent_actions":{"view_html":"https://pith.science/pith/6YOII4VN7CFLJUQSPQPFHIWQEN","download_json":"https://pith.science/pith/6YOII4VN7CFLJUQSPQPFHIWQEN.json","view_paper":"https://pith.science/paper/6YOII4VN","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1712.08778&json=true","fetch_graph":"https://pith.science/api/pith-number/6YOII4VN7CFLJUQSPQPFHIWQEN/graph.json","fetch_events":"https://pith.science/api/pith-number/6YOII4VN7CFLJUQSPQPFHIWQEN/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/6YOII4VN7CFLJUQSPQPFHIWQEN/action/timestamp_anchor","attest_storage":"https://pith.science/pith/6YOII4VN7CFLJUQSPQPFHIWQEN/action/storage_attestation","attest_author":"https://pith.science/pith/6YOII4VN7CFLJUQSPQPFHIWQEN/action/author_attestation","sign_citation":"https://pith.science/pith/6YOII4VN7CFLJUQSPQPFHIWQEN/action/citation_signature","submit_replication":"https://pith.science/pith/6YOII4VN7CFLJUQSPQPFHIWQEN/action/replication_record"}},"created_at":"2026-05-18T00:24:14.559709+00:00","updated_at":"2026-05-18T00:24:14.559709+00:00"}