{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:ZZ2JL6GPKIUTG2BN66NMDUNATQ","short_pith_number":"pith:ZZ2JL6GP","canonical_record":{"source":{"id":"1409.1092","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-09-03T13:58:09Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"4526bb9a3d0eebddef5b397835d6deb5b0f9ed79fddcc135b45578ddb40e5326","abstract_canon_sha256":"2ebd49074aace030acf0f3e198ed433eee456c2d1d4a601ef2565011b861bfd8"},"schema_version":"1.0"},"canonical_sha256":"ce7495f8cf522933682df79ac1d1a09c3e37671e56e8dccbe6634867fc093b4f","source":{"kind":"arxiv","id":"1409.1092","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1409.1092","created_at":"2026-05-18T01:42:08Z"},{"alias_kind":"arxiv_version","alias_value":"1409.1092v1","created_at":"2026-05-18T01:42:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1409.1092","created_at":"2026-05-18T01:42:08Z"},{"alias_kind":"pith_short_12","alias_value":"ZZ2JL6GPKIUT","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_16","alias_value":"ZZ2JL6GPKIUTG2BN","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_8","alias_value":"ZZ2JL6GP","created_at":"2026-05-18T12:28:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:ZZ2JL6GPKIUTG2BN66NMDUNATQ","target":"record","payload":{"canonical_record":{"source":{"id":"1409.1092","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-09-03T13:58:09Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"4526bb9a3d0eebddef5b397835d6deb5b0f9ed79fddcc135b45578ddb40e5326","abstract_canon_sha256":"2ebd49074aace030acf0f3e198ed433eee456c2d1d4a601ef2565011b861bfd8"},"schema_version":"1.0"},"canonical_sha256":"ce7495f8cf522933682df79ac1d1a09c3e37671e56e8dccbe6634867fc093b4f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:42:08.658374Z","signature_b64":"5A6LvFiiNnuo4UZfl+OHxEdW+u8cEzKDd1t2mAVZbkvVmTbbUhv/bdFI3Jvsdg8OuO01yd74M8Q7E2lNYm0/BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ce7495f8cf522933682df79ac1d1a09c3e37671e56e8dccbe6634867fc093b4f","last_reissued_at":"2026-05-18T01:42:08.657626Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:42:08.657626Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1409.1092","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":"2026-05-18T01:42:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"42kPHbhir8RlnUeTFc5Dq6K/CpbvpWcjTBQP8lI+1At6Dl+uyeJx9K8qDKCFdQCzgwlTftDwdvxBxIxvoKT8DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T07:25:13.159509Z"},"content_sha256":"6aceeb154873844fc224c73a2e02be6cfd858eed02a1b2d6c28831b963888199","schema_version":"1.0","event_id":"sha256:6aceeb154873844fc224c73a2e02be6cfd858eed02a1b2d6c28831b963888199"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:ZZ2JL6GPKIUTG2BN66NMDUNATQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Water deuterium fractionation in the high-mass star-forming region G34.26+0.15 based on Herschel/HIFI data","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"Audrey Coutens, Carina M. Persson, Charlotte Vastel, Dariusz C. Lis, Emmanuel Caux, Eric Herbst, Floris F. S. van der Tak, Luis Chavarr\\'ia, Maryvonne G\\'erin, Paul F. Goldsmith, Ugo Hincelin","submitted_at":"2014-09-03T13:58:09Z","abstract_excerpt":"Understanding water deuterium fractionation is important for constraining the mechanisms of water formation in interstellar clouds. Observations of HDO and H$_2^{18}$O transitions were carried out towards the high-mass star-forming region G34.26+0.15 with the HIFI instrument onboard the Herschel Space Observatory, as well as with ground-based single-dish telescopes. Ten HDO lines and three H$_2^{18}$O lines covering a broad range of upper energy levels (22-204 K) were detected. We used a non-LTE 1D analysis to determine the HDO/H$_2$O ratio as a function of radius in the envelope. Models with "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.1092","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":"2026-05-18T01:42:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Vs18gOj4rJLVANeQr/LTPR9EFBF2FIrWUDmCeKC3W63ozBqCNT5nUlovhqLT0vpgpBC3N1a9nUaXadtWzHFXBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T07:25:13.159866Z"},"content_sha256":"d7f5ae889907b4d0800e6ff2b256b6d757bf7b36b815cf530bc58050f7896496","schema_version":"1.0","event_id":"sha256:d7f5ae889907b4d0800e6ff2b256b6d757bf7b36b815cf530bc58050f7896496"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZZ2JL6GPKIUTG2BN66NMDUNATQ/bundle.json","state_url":"https://pith.science/pith/ZZ2JL6GPKIUTG2BN66NMDUNATQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZZ2JL6GPKIUTG2BN66NMDUNATQ/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":"2026-05-28T07:25:13Z","links":{"resolver":"https://pith.science/pith/ZZ2JL6GPKIUTG2BN66NMDUNATQ","bundle":"https://pith.science/pith/ZZ2JL6GPKIUTG2BN66NMDUNATQ/bundle.json","state":"https://pith.science/pith/ZZ2JL6GPKIUTG2BN66NMDUNATQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZZ2JL6GPKIUTG2BN66NMDUNATQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:ZZ2JL6GPKIUTG2BN66NMDUNATQ","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":"2ebd49074aace030acf0f3e198ed433eee456c2d1d4a601ef2565011b861bfd8","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-09-03T13:58:09Z","title_canon_sha256":"4526bb9a3d0eebddef5b397835d6deb5b0f9ed79fddcc135b45578ddb40e5326"},"schema_version":"1.0","source":{"id":"1409.1092","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1409.1092","created_at":"2026-05-18T01:42:08Z"},{"alias_kind":"arxiv_version","alias_value":"1409.1092v1","created_at":"2026-05-18T01:42:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1409.1092","created_at":"2026-05-18T01:42:08Z"},{"alias_kind":"pith_short_12","alias_value":"ZZ2JL6GPKIUT","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_16","alias_value":"ZZ2JL6GPKIUTG2BN","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_8","alias_value":"ZZ2JL6GP","created_at":"2026-05-18T12:28:59Z"}],"graph_snapshots":[{"event_id":"sha256:d7f5ae889907b4d0800e6ff2b256b6d757bf7b36b815cf530bc58050f7896496","target":"graph","created_at":"2026-05-18T01:42:08Z","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":"Understanding water deuterium fractionation is important for constraining the mechanisms of water formation in interstellar clouds. Observations of HDO and H$_2^{18}$O transitions were carried out towards the high-mass star-forming region G34.26+0.15 with the HIFI instrument onboard the Herschel Space Observatory, as well as with ground-based single-dish telescopes. Ten HDO lines and three H$_2^{18}$O lines covering a broad range of upper energy levels (22-204 K) were detected. We used a non-LTE 1D analysis to determine the HDO/H$_2$O ratio as a function of radius in the envelope. Models with ","authors_text":"Audrey Coutens, Carina M. Persson, Charlotte Vastel, Dariusz C. Lis, Emmanuel Caux, Eric Herbst, Floris F. S. van der Tak, Luis Chavarr\\'ia, Maryvonne G\\'erin, Paul F. Goldsmith, Ugo Hincelin","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-09-03T13:58:09Z","title":"Water deuterium fractionation in the high-mass star-forming region G34.26+0.15 based on Herschel/HIFI data"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.1092","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":"sha256:6aceeb154873844fc224c73a2e02be6cfd858eed02a1b2d6c28831b963888199","target":"record","created_at":"2026-05-18T01:42:08Z","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":"2ebd49074aace030acf0f3e198ed433eee456c2d1d4a601ef2565011b861bfd8","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-09-03T13:58:09Z","title_canon_sha256":"4526bb9a3d0eebddef5b397835d6deb5b0f9ed79fddcc135b45578ddb40e5326"},"schema_version":"1.0","source":{"id":"1409.1092","kind":"arxiv","version":1}},"canonical_sha256":"ce7495f8cf522933682df79ac1d1a09c3e37671e56e8dccbe6634867fc093b4f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ce7495f8cf522933682df79ac1d1a09c3e37671e56e8dccbe6634867fc093b4f","first_computed_at":"2026-05-18T01:42:08.657626Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:42:08.657626Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5A6LvFiiNnuo4UZfl+OHxEdW+u8cEzKDd1t2mAVZbkvVmTbbUhv/bdFI3Jvsdg8OuO01yd74M8Q7E2lNYm0/BA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:42:08.658374Z","signed_message":"canonical_sha256_bytes"},"source_id":"1409.1092","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6aceeb154873844fc224c73a2e02be6cfd858eed02a1b2d6c28831b963888199","sha256:d7f5ae889907b4d0800e6ff2b256b6d757bf7b36b815cf530bc58050f7896496"],"state_sha256":"cb947b1cc5607c14403d695e07ec159628388267c0f10bc130cb9c9c9026dc19"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gYFBqbVVhhPXC6Tf0VU72NGhtcsxh0IIhq1kRXKQVoAEMUEsSodCIibwG2xjwZnb7v6D2jeIv1C9hYz0STdOAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T07:25:13.161906Z","bundle_sha256":"ba81823c35ce5a0141c28ae40b7907e886ed43b12b0a01b7793d517cbdcda628"}}