{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:SVC7T52BIYF2YIEAILLNXCFF3F","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":"84b047ef4c75e8303b38228a7d5f605bfa5f3caae43614e4c378581a0ab7f4c3","cross_cats_sorted":["astro-ph.GA","astro-ph.SR","physics.chem-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-01-06T14:18:26Z","title_canon_sha256":"c1acbb41206ca32df3af4e0e4b3ddff78dff53d6efd8710f74d437ff7f58cfae"},"schema_version":"1.0","source":{"id":"2501.03031","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2501.03031","created_at":"2026-07-05T09:57:29Z"},{"alias_kind":"arxiv_version","alias_value":"2501.03031v1","created_at":"2026-07-05T09:57:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2501.03031","created_at":"2026-07-05T09:57:29Z"},{"alias_kind":"pith_short_12","alias_value":"SVC7T52BIYF2","created_at":"2026-07-05T09:57:29Z"},{"alias_kind":"pith_short_16","alias_value":"SVC7T52BIYF2YIEA","created_at":"2026-07-05T09:57:29Z"},{"alias_kind":"pith_short_8","alias_value":"SVC7T52B","created_at":"2026-07-05T09:57:29Z"}],"graph_snapshots":[{"event_id":"sha256:ff84c92693dafcb6f9d5a51e258f9e025d09e8a171abd28dc9f2f7cdaf094821","target":"graph","created_at":"2026-07-05T09:57:29Z","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/2501.03031/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Highly unsaturated carbon chains, including polyynes, have been detected in many astronomical regions and planetary systems. With the success of the QUIJOTE survey of the TMC-1, the community has seen a \"boom\" in the number of detected carbon chains. On the other hand, the Rosetta mission revealed the release of fully saturated hydrocarbons, C$_3$H$_8$, C$_4$H$_{10}$, C$_5$H$_{12}$, and (under specific conditions) C$_6$H$_{14}$ with C$_7$H$_{16}$, from the comet 67P/Churyumov-Gerasimenko. The detection of the latter two is attributed to dust-rich events. Similarly, the analysis of samples retu","authors_text":"G. A. Baratta, G. Fedoseev, K.-J. Chuang, M. E. Palumbo, X. Li","cross_cats":["astro-ph.GA","astro-ph.SR","physics.chem-ph"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-01-06T14:18:26Z","title":"Production of linear alkanes via the solid-state hydrogenation of interstellar polyynes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2501.03031","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":"sha256:3d5e757ee2d854c4b8263209e569fa1c2af919a4ae5f2686b60b601bfb3faa4d","target":"record","created_at":"2026-07-05T09:57:29Z","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":"84b047ef4c75e8303b38228a7d5f605bfa5f3caae43614e4c378581a0ab7f4c3","cross_cats_sorted":["astro-ph.GA","astro-ph.SR","physics.chem-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-01-06T14:18:26Z","title_canon_sha256":"c1acbb41206ca32df3af4e0e4b3ddff78dff53d6efd8710f74d437ff7f58cfae"},"schema_version":"1.0","source":{"id":"2501.03031","kind":"arxiv","version":1}},"canonical_sha256":"9545f9f741460bac208042d6db88a5d94b74f22a0df7eada1b3a3c330d1cd005","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9545f9f741460bac208042d6db88a5d94b74f22a0df7eada1b3a3c330d1cd005","first_computed_at":"2026-07-05T09:57:29.397397Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:57:29.397397Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GvIZvcDiPBUkdRt36fGTMD7isHGw+CMpQ1dML4ezIfCDVu7ZPJE95FhXAnHdCZfMxDTddBMepx5idgLqWOZiBA==","signature_status":"signed_v1","signed_at":"2026-07-05T09:57:29.397825Z","signed_message":"canonical_sha256_bytes"},"source_id":"2501.03031","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3d5e757ee2d854c4b8263209e569fa1c2af919a4ae5f2686b60b601bfb3faa4d","sha256:ff84c92693dafcb6f9d5a51e258f9e025d09e8a171abd28dc9f2f7cdaf094821"],"state_sha256":"4e4386022922b8f499689ba3b7bd5f3850dc2f14b40716ca590dbc3cc6646040"}