{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2021:AAJI2SDN4VZMTOYPYRSJJIV5IW","short_pith_number":"pith:AAJI2SDN","schema_version":"1.0","canonical_sha256":"00128d486de572c9bb0fc46494a2bd4589f72d1f02c85bc84cdb0591ecce5c4d","source":{"kind":"arxiv","id":"2105.12996","version":1},"attestation_state":"computed","paper":{"title":"The sulphur saga in TMC-1: Discovery of HCSCN and HCSCCH","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"B. Tercero, C. Cabezas, J. Cernicharo, J. R. Pardo, M. Agundez, N. Marcelino, P. de Vicente, Y. Endo","submitted_at":"2021-05-27T08:34:54Z","abstract_excerpt":"We report the detection, for the first time in space, of cyano thioformaldehyde (HCSCN) and propynethial (HCSCCH) towards the starless core TMC-1. Cyano thioformaldehyde presents a series of prominent a- and b-type lines, which are the strongest previously unassigned features in our Q-band line survey of TMC-1. Remarkably, HCSCN is four times more abundant than cyano formaldehyde (HCOCN). On the other hand, HCSCCH is five times less abundant than propynal (HCOCCH). Surprisingly, we find an abundance ratio HCSCCH/HCSCN of 0.25, in contrast with most other ethynyl-cyanide pairs of molecules for "},"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":"2105.12996","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-05-27T08:34:54Z","cross_cats_sorted":[],"title_canon_sha256":"cda0b45783c19fdce441c3a6507391de04ccf0a9ff13054d3b1c4aa26f860e92","abstract_canon_sha256":"0957003b8e6ba70264224651670010c821279617bc31b99caa4bfac80900cba1"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:51:26.544224Z","signature_b64":"u5Fdsi6dErXZj9zF5gpFiYaa3XVnBN0ByQVZJzfDHI3y1BLtYibrRD16AMXUj/hVI71n1ykEgYgiPow8i5y9BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"00128d486de572c9bb0fc46494a2bd4589f72d1f02c85bc84cdb0591ecce5c4d","last_reissued_at":"2026-07-05T02:51:26.543788Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:51:26.543788Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The sulphur saga in TMC-1: Discovery of HCSCN and HCSCCH","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"B. Tercero, C. Cabezas, J. Cernicharo, J. R. Pardo, M. Agundez, N. Marcelino, P. de Vicente, Y. Endo","submitted_at":"2021-05-27T08:34:54Z","abstract_excerpt":"We report the detection, for the first time in space, of cyano thioformaldehyde (HCSCN) and propynethial (HCSCCH) towards the starless core TMC-1. Cyano thioformaldehyde presents a series of prominent a- and b-type lines, which are the strongest previously unassigned features in our Q-band line survey of TMC-1. Remarkably, HCSCN is four times more abundant than cyano formaldehyde (HCOCN). On the other hand, HCSCCH is five times less abundant than propynal (HCOCCH). Surprisingly, we find an abundance ratio HCSCCH/HCSCN of 0.25, in contrast with most other ethynyl-cyanide pairs of molecules for "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2105.12996","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/2105.12996/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":"2105.12996","created_at":"2026-07-05T02:51:26.543844+00:00"},{"alias_kind":"arxiv_version","alias_value":"2105.12996v1","created_at":"2026-07-05T02:51:26.543844+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2105.12996","created_at":"2026-07-05T02:51:26.543844+00:00"},{"alias_kind":"pith_short_12","alias_value":"AAJI2SDN4VZM","created_at":"2026-07-05T02:51:26.543844+00:00"},{"alias_kind":"pith_short_16","alias_value":"AAJI2SDN4VZMTOYP","created_at":"2026-07-05T02:51:26.543844+00:00"},{"alias_kind":"pith_short_8","alias_value":"AAJI2SDN","created_at":"2026-07-05T02:51:26.543844+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/AAJI2SDN4VZMTOYPYRSJJIV5IW","json":"https://pith.science/pith/AAJI2SDN4VZMTOYPYRSJJIV5IW.json","graph_json":"https://pith.science/api/pith-number/AAJI2SDN4VZMTOYPYRSJJIV5IW/graph.json","events_json":"https://pith.science/api/pith-number/AAJI2SDN4VZMTOYPYRSJJIV5IW/events.json","paper":"https://pith.science/paper/AAJI2SDN"},"agent_actions":{"view_html":"https://pith.science/pith/AAJI2SDN4VZMTOYPYRSJJIV5IW","download_json":"https://pith.science/pith/AAJI2SDN4VZMTOYPYRSJJIV5IW.json","view_paper":"https://pith.science/paper/AAJI2SDN","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2105.12996&json=true","fetch_graph":"https://pith.science/api/pith-number/AAJI2SDN4VZMTOYPYRSJJIV5IW/graph.json","fetch_events":"https://pith.science/api/pith-number/AAJI2SDN4VZMTOYPYRSJJIV5IW/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/AAJI2SDN4VZMTOYPYRSJJIV5IW/action/timestamp_anchor","attest_storage":"https://pith.science/pith/AAJI2SDN4VZMTOYPYRSJJIV5IW/action/storage_attestation","attest_author":"https://pith.science/pith/AAJI2SDN4VZMTOYPYRSJJIV5IW/action/author_attestation","sign_citation":"https://pith.science/pith/AAJI2SDN4VZMTOYPYRSJJIV5IW/action/citation_signature","submit_replication":"https://pith.science/pith/AAJI2SDN4VZMTOYPYRSJJIV5IW/action/replication_record"}},"created_at":"2026-07-05T02:51:26.543844+00:00","updated_at":"2026-07-05T02:51:26.543844+00:00"}