{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:YM2BV6JCH7EBHV5UUNVKHXWNI3","short_pith_number":"pith:YM2BV6JC","canonical_record":{"source":{"id":"1502.00896","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-02-03T15:50:15Z","cross_cats_sorted":[],"title_canon_sha256":"28127f3a5a717535657e2cef5fcded2da66a033dcfbc5821948714c74f2dc0e9","abstract_canon_sha256":"a15d6585f2eb1ee75a2dea47931e8f8226475f77f40c36846675b3f9f6abd74c"},"schema_version":"1.0"},"canonical_sha256":"c3341af9223fc813d7b4a36aa3decd46d5d76bc06776e8a8e923b2cc6b0d8a99","source":{"kind":"arxiv","id":"1502.00896","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.00896","created_at":"2026-05-18T02:22:28Z"},{"alias_kind":"arxiv_version","alias_value":"1502.00896v1","created_at":"2026-05-18T02:22:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.00896","created_at":"2026-05-18T02:22:28Z"},{"alias_kind":"pith_short_12","alias_value":"YM2BV6JCH7EB","created_at":"2026-05-18T12:29:50Z"},{"alias_kind":"pith_short_16","alias_value":"YM2BV6JCH7EBHV5U","created_at":"2026-05-18T12:29:50Z"},{"alias_kind":"pith_short_8","alias_value":"YM2BV6JC","created_at":"2026-05-18T12:29:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:YM2BV6JCH7EBHV5UUNVKHXWNI3","target":"record","payload":{"canonical_record":{"source":{"id":"1502.00896","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-02-03T15:50:15Z","cross_cats_sorted":[],"title_canon_sha256":"28127f3a5a717535657e2cef5fcded2da66a033dcfbc5821948714c74f2dc0e9","abstract_canon_sha256":"a15d6585f2eb1ee75a2dea47931e8f8226475f77f40c36846675b3f9f6abd74c"},"schema_version":"1.0"},"canonical_sha256":"c3341af9223fc813d7b4a36aa3decd46d5d76bc06776e8a8e923b2cc6b0d8a99","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:22:28.644347Z","signature_b64":"32wYunYYaRQt5xOr7e7DbHWFxSkITYqqZUJP7rS3SdMie/sQnEb4V8Z2zAQ5zKSlyJG03J22+QoT+TdCr+lXDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c3341af9223fc813d7b4a36aa3decd46d5d76bc06776e8a8e923b2cc6b0d8a99","last_reissued_at":"2026-05-18T02:22:28.643615Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:22:28.643615Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1502.00896","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":"2026-05-18T02:22:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8rV/VKV5CJKsp8Gg+1C9PSbdOQdxKBMcKjl0++phC7hpfMG0IDRUX4KfG8kcWhEYS99wd93DkJog0emLVS/jBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T20:41:33.756750Z"},"content_sha256":"75af6e1e800b69c638dce982cdeda35f4eebfd333424fec29618ee0865ede722","schema_version":"1.0","event_id":"sha256:75af6e1e800b69c638dce982cdeda35f4eebfd333424fec29618ee0865ede722"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:YM2BV6JCH7EBHV5UUNVKHXWNI3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Detection of glycolaldehyde towards the solar-type protostar NGC1333 IRAS2A","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Audrey Coutens, Jes K. J{\\o}rgensen, Julie M. Lykke, Magnus V. Persson, Susanne F. Wampfler","submitted_at":"2015-02-03T15:50:15Z","abstract_excerpt":"Glycolaldehyde is a key molecule in the formation of biologically relevant molecules such as ribose. We report its detection with the Plateau de Bure interferometer towards the Class 0 young stellar object NGC1333 IRAS2A, which is only the second solar-type protostar for which this prebiotic molecule is detected. Local thermodynamic equilibrium analyses of glycolaldehyde, ethylene glycol (the reduced alcohol of glycolaldehyde) and methyl formate (the most abundant isomer of glycolaldehyde) were carried out. The relative abundance of ethylene glycol to glycolaldehyde is found to be ~5 -higher t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.00896","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":"2026-05-18T02:22:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eXCiJf2rtlUVCGhEpdtR49myu8HmoWOP8KwmOxMLkipNidJPTxgIQ8Xq6vc93XwHfQdKCN2RoQjQqThgr3qSAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T20:41:33.757354Z"},"content_sha256":"572c832a6694bc94622ff3a3b443567e2148dae37495a81f533dc7a8eafaeb87","schema_version":"1.0","event_id":"sha256:572c832a6694bc94622ff3a3b443567e2148dae37495a81f533dc7a8eafaeb87"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YM2BV6JCH7EBHV5UUNVKHXWNI3/bundle.json","state_url":"https://pith.science/pith/YM2BV6JCH7EBHV5UUNVKHXWNI3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YM2BV6JCH7EBHV5UUNVKHXWNI3/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":"2026-06-06T20:41:33Z","links":{"resolver":"https://pith.science/pith/YM2BV6JCH7EBHV5UUNVKHXWNI3","bundle":"https://pith.science/pith/YM2BV6JCH7EBHV5UUNVKHXWNI3/bundle.json","state":"https://pith.science/pith/YM2BV6JCH7EBHV5UUNVKHXWNI3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YM2BV6JCH7EBHV5UUNVKHXWNI3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:YM2BV6JCH7EBHV5UUNVKHXWNI3","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":"a15d6585f2eb1ee75a2dea47931e8f8226475f77f40c36846675b3f9f6abd74c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-02-03T15:50:15Z","title_canon_sha256":"28127f3a5a717535657e2cef5fcded2da66a033dcfbc5821948714c74f2dc0e9"},"schema_version":"1.0","source":{"id":"1502.00896","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.00896","created_at":"2026-05-18T02:22:28Z"},{"alias_kind":"arxiv_version","alias_value":"1502.00896v1","created_at":"2026-05-18T02:22:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.00896","created_at":"2026-05-18T02:22:28Z"},{"alias_kind":"pith_short_12","alias_value":"YM2BV6JCH7EB","created_at":"2026-05-18T12:29:50Z"},{"alias_kind":"pith_short_16","alias_value":"YM2BV6JCH7EBHV5U","created_at":"2026-05-18T12:29:50Z"},{"alias_kind":"pith_short_8","alias_value":"YM2BV6JC","created_at":"2026-05-18T12:29:50Z"}],"graph_snapshots":[{"event_id":"sha256:572c832a6694bc94622ff3a3b443567e2148dae37495a81f533dc7a8eafaeb87","target":"graph","created_at":"2026-05-18T02:22:28Z","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":"Glycolaldehyde is a key molecule in the formation of biologically relevant molecules such as ribose. We report its detection with the Plateau de Bure interferometer towards the Class 0 young stellar object NGC1333 IRAS2A, which is only the second solar-type protostar for which this prebiotic molecule is detected. Local thermodynamic equilibrium analyses of glycolaldehyde, ethylene glycol (the reduced alcohol of glycolaldehyde) and methyl formate (the most abundant isomer of glycolaldehyde) were carried out. The relative abundance of ethylene glycol to glycolaldehyde is found to be ~5 -higher t","authors_text":"Audrey Coutens, Jes K. J{\\o}rgensen, Julie M. Lykke, Magnus V. Persson, Susanne F. Wampfler","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-02-03T15:50:15Z","title":"Detection of glycolaldehyde towards the solar-type protostar NGC1333 IRAS2A"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.00896","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":"sha256:75af6e1e800b69c638dce982cdeda35f4eebfd333424fec29618ee0865ede722","target":"record","created_at":"2026-05-18T02:22:28Z","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":"a15d6585f2eb1ee75a2dea47931e8f8226475f77f40c36846675b3f9f6abd74c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-02-03T15:50:15Z","title_canon_sha256":"28127f3a5a717535657e2cef5fcded2da66a033dcfbc5821948714c74f2dc0e9"},"schema_version":"1.0","source":{"id":"1502.00896","kind":"arxiv","version":1}},"canonical_sha256":"c3341af9223fc813d7b4a36aa3decd46d5d76bc06776e8a8e923b2cc6b0d8a99","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c3341af9223fc813d7b4a36aa3decd46d5d76bc06776e8a8e923b2cc6b0d8a99","first_computed_at":"2026-05-18T02:22:28.643615Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:22:28.643615Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"32wYunYYaRQt5xOr7e7DbHWFxSkITYqqZUJP7rS3SdMie/sQnEb4V8Z2zAQ5zKSlyJG03J22+QoT+TdCr+lXDw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:22:28.644347Z","signed_message":"canonical_sha256_bytes"},"source_id":"1502.00896","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:75af6e1e800b69c638dce982cdeda35f4eebfd333424fec29618ee0865ede722","sha256:572c832a6694bc94622ff3a3b443567e2148dae37495a81f533dc7a8eafaeb87"],"state_sha256":"0a344c1503556bfad7bf874ae65de78fa0372a86cbe0aa63a3e6b10c534bb111"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oVh+oMZVRO5B4TEf6Ouf0Rv/MlNavf284ehsx7CwYQA1WdvbkYGpNtYY//APc1wM9O3RjRTpP74GGElcWZquCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T20:41:33.760620Z","bundle_sha256":"55ba1cde1b64b5231fbbbab7551299818163246efc2c6a6f91f007a5d6ee4a0c"}}