{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:ARRTQ4YC3QOTY7QWROPCJYMDAJ","short_pith_number":"pith:ARRTQ4YC","canonical_record":{"source":{"id":"1802.09401","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-02-26T15:29:34Z","cross_cats_sorted":[],"title_canon_sha256":"c3e897a893b2938701f26e31ad333ed871aaf5f09f25585c6cf53acb0981670a","abstract_canon_sha256":"1e3d957274aa985edae22ca0885eaac0f94efc350e49a02f1e20097b6bbca728"},"schema_version":"1.0"},"canonical_sha256":"0463387302dc1d3c7e168b9e24e183024e951e979493bd384af246037db9f9e4","source":{"kind":"arxiv","id":"1802.09401","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.09401","created_at":"2026-05-18T00:21:05Z"},{"alias_kind":"arxiv_version","alias_value":"1802.09401v1","created_at":"2026-05-18T00:21:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.09401","created_at":"2026-05-18T00:21:05Z"},{"alias_kind":"pith_short_12","alias_value":"ARRTQ4YC3QOT","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_16","alias_value":"ARRTQ4YC3QOTY7QW","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_8","alias_value":"ARRTQ4YC","created_at":"2026-05-18T12:32:13Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:ARRTQ4YC3QOTY7QWROPCJYMDAJ","target":"record","payload":{"canonical_record":{"source":{"id":"1802.09401","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-02-26T15:29:34Z","cross_cats_sorted":[],"title_canon_sha256":"c3e897a893b2938701f26e31ad333ed871aaf5f09f25585c6cf53acb0981670a","abstract_canon_sha256":"1e3d957274aa985edae22ca0885eaac0f94efc350e49a02f1e20097b6bbca728"},"schema_version":"1.0"},"canonical_sha256":"0463387302dc1d3c7e168b9e24e183024e951e979493bd384af246037db9f9e4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:21:05.680660Z","signature_b64":"xqRIWbDK4u/rYbkIrjJMVqXgaAQoBFiIcI6lFxvNlB24ARa7/jz+kBziALVMXaO6St0lTwJjLip5NnSHzqwhBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0463387302dc1d3c7e168b9e24e183024e951e979493bd384af246037db9f9e4","last_reissued_at":"2026-05-18T00:21:05.680085Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:21:05.680085Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1802.09401","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:21:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DJTMh5CiTvfJ2q5WEAU0NcVeAqsydwpwDfSyX+hwqlH1b7O8+Llfj/1PEZl/C40WOsDA9gf1jlabNC7ehl1ZCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T22:10:45.303839Z"},"content_sha256":"738d4be76628701632b8fbc53856cd9cc15c5e2b392bd3adc9e3519386f6f3e0","schema_version":"1.0","event_id":"sha256:738d4be76628701632b8fbc53856cd9cc15c5e2b392bd3adc9e3519386f6f3e0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:ARRTQ4YC3QOTY7QWROPCJYMDAJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Detection of interstellar HCS and its metastable isomer HSC: new pieces in the puzzle of sulfur chemistry","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"J. Cernicharo, M. Agundez, M. Tafalla, N. Marcelino","submitted_at":"2018-02-26T15:29:34Z","abstract_excerpt":"We present the first identification in interstellar space of the thioformyl radical (HCS) and its metastable isomer HSC. These species were detected toward the molecular cloud L483 thanks to observations carried out with the IRAM 30m telescope in the 3 mm band. We derive beam-averaged column densities of 7e12 cm-2 for HCS and 1.8e11 cm-2 for HSC, which translate to fractional abundances relative to H2 of 2e-10 and 6e-12, respectively. Although the amount of sulfur locked by these radicals is low, their detection allows to put interesting constraints on the chemistry of sulfur in dark clouds. I"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.09401","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:21:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bYNLU0V+eRIFoYbnlQLwStiiz8vdIfbwd9KV9RQo0WqOjPjIH7WgaJwl4Fz1GiPDpT9EtyoKvTSRumAa8RStCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T22:10:45.304547Z"},"content_sha256":"3fd5976eee646d5464f90879ef1b2e16245fdb05fa088624425a68ba0c7dd51e","schema_version":"1.0","event_id":"sha256:3fd5976eee646d5464f90879ef1b2e16245fdb05fa088624425a68ba0c7dd51e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ARRTQ4YC3QOTY7QWROPCJYMDAJ/bundle.json","state_url":"https://pith.science/pith/ARRTQ4YC3QOTY7QWROPCJYMDAJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ARRTQ4YC3QOTY7QWROPCJYMDAJ/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":"2026-05-28T22:10:45Z","links":{"resolver":"https://pith.science/pith/ARRTQ4YC3QOTY7QWROPCJYMDAJ","bundle":"https://pith.science/pith/ARRTQ4YC3QOTY7QWROPCJYMDAJ/bundle.json","state":"https://pith.science/pith/ARRTQ4YC3QOTY7QWROPCJYMDAJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ARRTQ4YC3QOTY7QWROPCJYMDAJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:ARRTQ4YC3QOTY7QWROPCJYMDAJ","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":"1e3d957274aa985edae22ca0885eaac0f94efc350e49a02f1e20097b6bbca728","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-02-26T15:29:34Z","title_canon_sha256":"c3e897a893b2938701f26e31ad333ed871aaf5f09f25585c6cf53acb0981670a"},"schema_version":"1.0","source":{"id":"1802.09401","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.09401","created_at":"2026-05-18T00:21:05Z"},{"alias_kind":"arxiv_version","alias_value":"1802.09401v1","created_at":"2026-05-18T00:21:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.09401","created_at":"2026-05-18T00:21:05Z"},{"alias_kind":"pith_short_12","alias_value":"ARRTQ4YC3QOT","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_16","alias_value":"ARRTQ4YC3QOTY7QW","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_8","alias_value":"ARRTQ4YC","created_at":"2026-05-18T12:32:13Z"}],"graph_snapshots":[{"event_id":"sha256:3fd5976eee646d5464f90879ef1b2e16245fdb05fa088624425a68ba0c7dd51e","target":"graph","created_at":"2026-05-18T00:21:05Z","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"},"paper":{"abstract_excerpt":"We present the first identification in interstellar space of the thioformyl radical (HCS) and its metastable isomer HSC. These species were detected toward the molecular cloud L483 thanks to observations carried out with the IRAM 30m telescope in the 3 mm band. We derive beam-averaged column densities of 7e12 cm-2 for HCS and 1.8e11 cm-2 for HSC, which translate to fractional abundances relative to H2 of 2e-10 and 6e-12, respectively. Although the amount of sulfur locked by these radicals is low, their detection allows to put interesting constraints on the chemistry of sulfur in dark clouds. I","authors_text":"J. Cernicharo, M. Agundez, M. Tafalla, N. Marcelino","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-02-26T15:29:34Z","title":"Detection of interstellar HCS and its metastable isomer HSC: new pieces in the puzzle of sulfur chemistry"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.09401","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":"sha256:738d4be76628701632b8fbc53856cd9cc15c5e2b392bd3adc9e3519386f6f3e0","target":"record","created_at":"2026-05-18T00:21:05Z","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":"1e3d957274aa985edae22ca0885eaac0f94efc350e49a02f1e20097b6bbca728","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-02-26T15:29:34Z","title_canon_sha256":"c3e897a893b2938701f26e31ad333ed871aaf5f09f25585c6cf53acb0981670a"},"schema_version":"1.0","source":{"id":"1802.09401","kind":"arxiv","version":1}},"canonical_sha256":"0463387302dc1d3c7e168b9e24e183024e951e979493bd384af246037db9f9e4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0463387302dc1d3c7e168b9e24e183024e951e979493bd384af246037db9f9e4","first_computed_at":"2026-05-18T00:21:05.680085Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:21:05.680085Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xqRIWbDK4u/rYbkIrjJMVqXgaAQoBFiIcI6lFxvNlB24ARa7/jz+kBziALVMXaO6St0lTwJjLip5NnSHzqwhBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:21:05.680660Z","signed_message":"canonical_sha256_bytes"},"source_id":"1802.09401","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:738d4be76628701632b8fbc53856cd9cc15c5e2b392bd3adc9e3519386f6f3e0","sha256:3fd5976eee646d5464f90879ef1b2e16245fdb05fa088624425a68ba0c7dd51e"],"state_sha256":"3c7678346cb996e8d4f9915a3422de5181c62320d88323d9e3657f977203b0ed"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZW4wr1/HzqB1hToLwVbpwTWpK0z0liXj5iX9tVnBXeWrImdPgpoq8kJnDMmZdwvTZLE1Q1dbvvvQCf/tMjz1Cg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T22:10:45.308271Z","bundle_sha256":"dda1102c1ea067f386f8f1142ede72d70c70fceafb8ffd993b8d4115dbae07f2"}}