{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:NOBS75PCHJQYEW3JDXCZ6O6TXQ","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"746972bd72879adff419aed0338f91f87b811efc9e5b5a01035015f977dce448","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-07-19T16:13:29Z","title_canon_sha256":"28ccfff899216eb33f6836fc53d97f3bf5a520b67780216ebdebae853bb0df4a"},"schema_version":"1.0","source":{"id":"2207.09369","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2207.09369","created_at":"2026-07-05T04:43:50Z"},{"alias_kind":"arxiv_version","alias_value":"2207.09369v1","created_at":"2026-07-05T04:43:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2207.09369","created_at":"2026-07-05T04:43:50Z"},{"alias_kind":"pith_short_12","alias_value":"NOBS75PCHJQY","created_at":"2026-07-05T04:43:50Z"},{"alias_kind":"pith_short_16","alias_value":"NOBS75PCHJQYEW3J","created_at":"2026-07-05T04:43:50Z"},{"alias_kind":"pith_short_8","alias_value":"NOBS75PC","created_at":"2026-07-05T04:43:50Z"}],"graph_snapshots":[{"event_id":"sha256:d831d02827ef8bfb9efc9db2fbd3581d4b41fbb0eecb3fcdf80d96b8dd9b5f57","target":"graph","created_at":"2026-07-05T04:43:50Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2207.09369/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We report the detection of fulvenallene ($c$-C$_5$H$_4$CCH$_2$) in the direction of TMC-1 with the QUIJOTE line survey. Thirty rotational transitions with $K_a$=0,1,2,3 and $J$=9-15 were detected. The best rotational temperature fitting of the data is 9\\,K and a derived column density is (2.7$\\pm$0.3)$\\times$10$^{12}$ cm$^{-2}$, which is only a factor of 4.4 below that of its potential precursor cyclopentadiene ($c$-C$_5$H$_6$), and 1.4--1.9 times higher than that of the ethynyl derivatives of cyclopentadiene. We searched for fulvene ($c$-C$_5$H$_4$CH$_2$), a CH$_2$ derivative of cyclopentadie","authors_text":"Bel\\'en Tercero, Carlos Cabezas, Jos\\'e Cernicharo, Juan R. Pardo, Marcelino Ag\\'undez, Nuria Marcelino, Pablo de Vicente, Ralf I. Kaiser, Ra\\'ul Fuentetaja","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-07-19T16:13:29Z","title":"Discovery of fulvenallene in TMC-1 with the QUIJOTE line survey"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2207.09369","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:6f4ba92fb2321dcd70aef9f093c398371292cfbd65c0b49b024f9c9bfaa4579c","target":"record","created_at":"2026-07-05T04:43:50Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"746972bd72879adff419aed0338f91f87b811efc9e5b5a01035015f977dce448","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-07-19T16:13:29Z","title_canon_sha256":"28ccfff899216eb33f6836fc53d97f3bf5a520b67780216ebdebae853bb0df4a"},"schema_version":"1.0","source":{"id":"2207.09369","kind":"arxiv","version":1}},"canonical_sha256":"6b832ff5e23a61825b691dc59f3bd3bc2585016cbdd7e639517a6a04111d76dc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6b832ff5e23a61825b691dc59f3bd3bc2585016cbdd7e639517a6a04111d76dc","first_computed_at":"2026-07-05T04:43:50.224531Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:43:50.224531Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qo3l0CYsYtOt71cZUlyxDmS5BWgBHLDOLgZERWQACjNoryy+Gdf7Wa+FEeOe5mPclfl/EX7JRQidsf2IHF1yDw==","signature_status":"signed_v1","signed_at":"2026-07-05T04:43:50.224873Z","signed_message":"canonical_sha256_bytes"},"source_id":"2207.09369","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6f4ba92fb2321dcd70aef9f093c398371292cfbd65c0b49b024f9c9bfaa4579c","sha256:d831d02827ef8bfb9efc9db2fbd3581d4b41fbb0eecb3fcdf80d96b8dd9b5f57"],"state_sha256":"cf2b57c82e4ceed5418d55700db8810bee482af031eb319d27711dd6a24a3559"}