{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:TCFOQE2QLDKIEEKTZV6LHHUC7C","short_pith_number":"pith:TCFOQE2Q","canonical_record":{"source":{"id":"2101.05858","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-01-14T20:36:12Z","cross_cats_sorted":[],"title_canon_sha256":"4d7b57bd8cd906668d9153ba17d511bc5f3a99b9187f337103968040580707be","abstract_canon_sha256":"bf40e80aede2d036dd0a2f0b6bf89d5a6156966ff162cc795471124851c0a6d3"},"schema_version":"1.0"},"canonical_sha256":"988ae8135058d4821153cd7cb39e82f8bd47f75a5c865cfb20fba3285e05b81d","source":{"kind":"arxiv","id":"2101.05858","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2101.05858","created_at":"2026-07-05T02:14:45Z"},{"alias_kind":"arxiv_version","alias_value":"2101.05858v2","created_at":"2026-07-05T02:14:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2101.05858","created_at":"2026-07-05T02:14:45Z"},{"alias_kind":"pith_short_12","alias_value":"TCFOQE2QLDKI","created_at":"2026-07-05T02:14:45Z"},{"alias_kind":"pith_short_16","alias_value":"TCFOQE2QLDKIEEKT","created_at":"2026-07-05T02:14:45Z"},{"alias_kind":"pith_short_8","alias_value":"TCFOQE2Q","created_at":"2026-07-05T02:14:45Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:TCFOQE2QLDKIEEKTZV6LHHUC7C","target":"record","payload":{"canonical_record":{"source":{"id":"2101.05858","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-01-14T20:36:12Z","cross_cats_sorted":[],"title_canon_sha256":"4d7b57bd8cd906668d9153ba17d511bc5f3a99b9187f337103968040580707be","abstract_canon_sha256":"bf40e80aede2d036dd0a2f0b6bf89d5a6156966ff162cc795471124851c0a6d3"},"schema_version":"1.0"},"canonical_sha256":"988ae8135058d4821153cd7cb39e82f8bd47f75a5c865cfb20fba3285e05b81d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:14:45.307325Z","signature_b64":"j9SOO5Cl5sZ6tNLRqZQah5sK7EMkTePHXC/X7eJM3SameeeUmmtB15oe/mE76y0YtYpin24PcHgEncdpGqWMBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"988ae8135058d4821153cd7cb39e82f8bd47f75a5c865cfb20fba3285e05b81d","last_reissued_at":"2026-07-05T02:14:45.306874Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:14:45.306874Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2101.05858","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T02:14:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jnvPqBA6S4Y0+yywVnV7wf+S2ATei5KxYdRIcCbkFbYR5fW0/cUWnKXmMPeovlEzR+CPh5dwV/7HXg2PikOOAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-22T03:54:12.271080Z"},"content_sha256":"1a695d5fa2ef699e208857b983dc732c754c31ee547f53605dbe84d89cae39e9","schema_version":"1.0","event_id":"sha256:1a695d5fa2ef699e208857b983dc732c754c31ee547f53605dbe84d89cae39e9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:TCFOQE2QLDKIEEKTZV6LHHUC7C","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Discovery of Interstellar trans-cyanovinylacetylene (HCCCH=CHCN) and vinylcyanoacetylene (H$_2$C=CHC$_3$N) in GOTHAM Observations of TMC-1","license":"http://creativecommons.org/licenses/by-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Andrew M. Burkhardt, Anthony Remijan, Brett A. McGuire, Christopher N. Shingledecker, Ci Xue, Ilsa R. Cooke, Kin Long Kelvin Lee, Mark A. Siebert, Michael C. McCarthy, Ryan A. Loomis, Steven B. Charnley","submitted_at":"2021-01-14T20:36:12Z","abstract_excerpt":"We report the discovery of two unsaturated organic species, trans-(E)-cyanovinylacetylene and vinylcyanoacetylene, using the second data release of the GOTHAM deep survey towards TMC-1 with the 100 m Green Bank Telescope. For both detections, we performed velocity stacking and matched filter analyses using Markov chain Monte Carlo simulations, and for trans-(E)-cyanovinylacetylene, three rotational lines were observed at low signal-to-noise (${\\sim}$3$\\sigma$). From this analysis, we derive column densities of $2\\times10^{11}$ and $3\\times10^{11}$ cm$^{-2}$ for vinylcyanoacetylene and trans-(E"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2101.05858","kind":"arxiv","version":2},"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/2101.05858/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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T02:14:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xCh1wLJIH1+0loK6dz/ue/p5NyuinPNwEwn5Kp8v4bmzzFBQk9vQEAW4znW3RRdHHwYtqZlEfrDVZVdKb82ZBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-22T03:54:12.271583Z"},"content_sha256":"0f898b6485e452c158af117d51251945bf40aeb6925be37355a58c76c1723be5","schema_version":"1.0","event_id":"sha256:0f898b6485e452c158af117d51251945bf40aeb6925be37355a58c76c1723be5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TCFOQE2QLDKIEEKTZV6LHHUC7C/bundle.json","state_url":"https://pith.science/pith/TCFOQE2QLDKIEEKTZV6LHHUC7C/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TCFOQE2QLDKIEEKTZV6LHHUC7C/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-22T03:54:12Z","links":{"resolver":"https://pith.science/pith/TCFOQE2QLDKIEEKTZV6LHHUC7C","bundle":"https://pith.science/pith/TCFOQE2QLDKIEEKTZV6LHHUC7C/bundle.json","state":"https://pith.science/pith/TCFOQE2QLDKIEEKTZV6LHHUC7C/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TCFOQE2QLDKIEEKTZV6LHHUC7C/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:TCFOQE2QLDKIEEKTZV6LHHUC7C","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":"bf40e80aede2d036dd0a2f0b6bf89d5a6156966ff162cc795471124851c0a6d3","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-01-14T20:36:12Z","title_canon_sha256":"4d7b57bd8cd906668d9153ba17d511bc5f3a99b9187f337103968040580707be"},"schema_version":"1.0","source":{"id":"2101.05858","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2101.05858","created_at":"2026-07-05T02:14:45Z"},{"alias_kind":"arxiv_version","alias_value":"2101.05858v2","created_at":"2026-07-05T02:14:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2101.05858","created_at":"2026-07-05T02:14:45Z"},{"alias_kind":"pith_short_12","alias_value":"TCFOQE2QLDKI","created_at":"2026-07-05T02:14:45Z"},{"alias_kind":"pith_short_16","alias_value":"TCFOQE2QLDKIEEKT","created_at":"2026-07-05T02:14:45Z"},{"alias_kind":"pith_short_8","alias_value":"TCFOQE2Q","created_at":"2026-07-05T02:14:45Z"}],"graph_snapshots":[{"event_id":"sha256:0f898b6485e452c158af117d51251945bf40aeb6925be37355a58c76c1723be5","target":"graph","created_at":"2026-07-05T02:14:45Z","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/2101.05858/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We report the discovery of two unsaturated organic species, trans-(E)-cyanovinylacetylene and vinylcyanoacetylene, using the second data release of the GOTHAM deep survey towards TMC-1 with the 100 m Green Bank Telescope. For both detections, we performed velocity stacking and matched filter analyses using Markov chain Monte Carlo simulations, and for trans-(E)-cyanovinylacetylene, three rotational lines were observed at low signal-to-noise (${\\sim}$3$\\sigma$). From this analysis, we derive column densities of $2\\times10^{11}$ and $3\\times10^{11}$ cm$^{-2}$ for vinylcyanoacetylene and trans-(E","authors_text":"Andrew M. Burkhardt, Anthony Remijan, Brett A. McGuire, Christopher N. Shingledecker, Ci Xue, Ilsa R. Cooke, Kin Long Kelvin Lee, Mark A. Siebert, Michael C. McCarthy, Ryan A. Loomis, Steven B. Charnley","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-01-14T20:36:12Z","title":"Discovery of Interstellar trans-cyanovinylacetylene (HCCCH=CHCN) and vinylcyanoacetylene (H$_2$C=CHC$_3$N) in GOTHAM Observations of TMC-1"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2101.05858","kind":"arxiv","version":2},"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":"sha256:1a695d5fa2ef699e208857b983dc732c754c31ee547f53605dbe84d89cae39e9","target":"record","created_at":"2026-07-05T02:14:45Z","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":"bf40e80aede2d036dd0a2f0b6bf89d5a6156966ff162cc795471124851c0a6d3","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-01-14T20:36:12Z","title_canon_sha256":"4d7b57bd8cd906668d9153ba17d511bc5f3a99b9187f337103968040580707be"},"schema_version":"1.0","source":{"id":"2101.05858","kind":"arxiv","version":2}},"canonical_sha256":"988ae8135058d4821153cd7cb39e82f8bd47f75a5c865cfb20fba3285e05b81d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"988ae8135058d4821153cd7cb39e82f8bd47f75a5c865cfb20fba3285e05b81d","first_computed_at":"2026-07-05T02:14:45.306874Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:14:45.306874Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"j9SOO5Cl5sZ6tNLRqZQah5sK7EMkTePHXC/X7eJM3SameeeUmmtB15oe/mE76y0YtYpin24PcHgEncdpGqWMBA==","signature_status":"signed_v1","signed_at":"2026-07-05T02:14:45.307325Z","signed_message":"canonical_sha256_bytes"},"source_id":"2101.05858","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1a695d5fa2ef699e208857b983dc732c754c31ee547f53605dbe84d89cae39e9","sha256:0f898b6485e452c158af117d51251945bf40aeb6925be37355a58c76c1723be5"],"state_sha256":"415881a555de02d38f4a8380bc875c51ae3b409ecd66cb41c92b93f919edf013"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"URV66sk6EiJo3+l2UeIFeF1WTL9TSSa/kAG7bxrszLrOScO9qhZxb1tnukfpFvq/5awT85yWjgt8YZnzO1B1BA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-22T03:54:12.276147Z","bundle_sha256":"cb382bf95d233831cc7870bc27a47b7bfd9d0d68db853ffa32a3706e3196281c"}}