{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:ZED2DZPP62XOMGVJT5RPQVPBF5","short_pith_number":"pith:ZED2DZPP","canonical_record":{"source":{"id":"1107.5824","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-07-28T20:23:55Z","cross_cats_sorted":[],"title_canon_sha256":"d90314444d75bf952152ecebc05898d88f6ba039aff2427759ceb55bfb795ca7","abstract_canon_sha256":"48a4931a470c990cd7061a2f0db4ec8a0f562b95b6970837ec2dd3e1c66e7756"},"schema_version":"1.0"},"canonical_sha256":"c907a1e5eff6aee61aa99f62f855e12f5aaa841215e0ba78cb467136eda94131","source":{"kind":"arxiv","id":"1107.5824","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1107.5824","created_at":"2026-05-18T02:01:06Z"},{"alias_kind":"arxiv_version","alias_value":"1107.5824v1","created_at":"2026-05-18T02:01:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1107.5824","created_at":"2026-05-18T02:01:06Z"},{"alias_kind":"pith_short_12","alias_value":"ZED2DZPP62XO","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_16","alias_value":"ZED2DZPP62XOMGVJ","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_8","alias_value":"ZED2DZPP","created_at":"2026-05-18T12:26:47Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:ZED2DZPP62XOMGVJT5RPQVPBF5","target":"record","payload":{"canonical_record":{"source":{"id":"1107.5824","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-07-28T20:23:55Z","cross_cats_sorted":[],"title_canon_sha256":"d90314444d75bf952152ecebc05898d88f6ba039aff2427759ceb55bfb795ca7","abstract_canon_sha256":"48a4931a470c990cd7061a2f0db4ec8a0f562b95b6970837ec2dd3e1c66e7756"},"schema_version":"1.0"},"canonical_sha256":"c907a1e5eff6aee61aa99f62f855e12f5aaa841215e0ba78cb467136eda94131","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:01:06.113330Z","signature_b64":"jY66KnjmVTmk/oFi3WpcHFYj5RlPbsFJOjmizsjn2lnJDcZBWb/BlbzC9gPGqABGKP98uGjMo9ZS0fqfi1mgBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c907a1e5eff6aee61aa99f62f855e12f5aaa841215e0ba78cb467136eda94131","last_reissued_at":"2026-05-18T02:01:06.112802Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:01:06.112802Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1107.5824","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":"2026-05-18T02:01:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"acBlfain0tBJ2bribtzTLFcnqbkRU7Yy1dynYIqDyfxB8QUsPVk89aO+lHe32TsNywMBGxCFVkZjszB9SGoEBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T21:15:28.249103Z"},"content_sha256":"3b94e087461b39bfef04364af0fd7f78ed7ff87d7e08cd3ee7d2fb6f25c06e8a","schema_version":"1.0","event_id":"sha256:3b94e087461b39bfef04364af0fd7f78ed7ff87d7e08cd3ee7d2fb6f25c06e8a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:ZED2DZPP62XOMGVJT5RPQVPBF5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Complex molecules toward low-mass protostars: the Serpens core","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Ewine F. van Dishoeck, Karin I. Oberg, Lars E. Kristensen, Nienke van der Marel","submitted_at":"2011-07-28T20:23:55Z","abstract_excerpt":"Gas-phase complex organic molecules are commonly detected toward high-mass protostellar hot cores. Detections toward low-mass protostars and outflows are comparatively rare, and a larger sample is key to investigate how the chemistry responds to its environment. Guided by the prediction that complex organic molecules form in CH3OH-rich ices and thermally or non-thermally evaporate with CH3OH, we have identified three sight-lines in the Serpens core - SMM1, SMM4 and SMM4-W - which are likely to be rich in complex organics. Using the IRAM 30m telescope, narrow lines (FWHM of 1-2 km s-1) of CH3CH"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1107.5824","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":"2026-05-18T02:01:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hFOjWfP7Jwyf2U5mWW4pFQPgH8Rwfoa9dj+44UGVcQopi1bVQhYtG5VISu4U6nLeF+PBl2TuFMieN2iA0cQ0Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T21:15:28.249824Z"},"content_sha256":"352fcbe66ef09b84d5c4b23ad5df4155e2a9ff5baf838dd49f59a44e0d1edb53","schema_version":"1.0","event_id":"sha256:352fcbe66ef09b84d5c4b23ad5df4155e2a9ff5baf838dd49f59a44e0d1edb53"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZED2DZPP62XOMGVJT5RPQVPBF5/bundle.json","state_url":"https://pith.science/pith/ZED2DZPP62XOMGVJT5RPQVPBF5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZED2DZPP62XOMGVJT5RPQVPBF5/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":"2026-05-25T21:15:28Z","links":{"resolver":"https://pith.science/pith/ZED2DZPP62XOMGVJT5RPQVPBF5","bundle":"https://pith.science/pith/ZED2DZPP62XOMGVJT5RPQVPBF5/bundle.json","state":"https://pith.science/pith/ZED2DZPP62XOMGVJT5RPQVPBF5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZED2DZPP62XOMGVJT5RPQVPBF5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:ZED2DZPP62XOMGVJT5RPQVPBF5","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":"48a4931a470c990cd7061a2f0db4ec8a0f562b95b6970837ec2dd3e1c66e7756","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-07-28T20:23:55Z","title_canon_sha256":"d90314444d75bf952152ecebc05898d88f6ba039aff2427759ceb55bfb795ca7"},"schema_version":"1.0","source":{"id":"1107.5824","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1107.5824","created_at":"2026-05-18T02:01:06Z"},{"alias_kind":"arxiv_version","alias_value":"1107.5824v1","created_at":"2026-05-18T02:01:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1107.5824","created_at":"2026-05-18T02:01:06Z"},{"alias_kind":"pith_short_12","alias_value":"ZED2DZPP62XO","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_16","alias_value":"ZED2DZPP62XOMGVJ","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_8","alias_value":"ZED2DZPP","created_at":"2026-05-18T12:26:47Z"}],"graph_snapshots":[{"event_id":"sha256:352fcbe66ef09b84d5c4b23ad5df4155e2a9ff5baf838dd49f59a44e0d1edb53","target":"graph","created_at":"2026-05-18T02:01:06Z","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":"Gas-phase complex organic molecules are commonly detected toward high-mass protostellar hot cores. Detections toward low-mass protostars and outflows are comparatively rare, and a larger sample is key to investigate how the chemistry responds to its environment. Guided by the prediction that complex organic molecules form in CH3OH-rich ices and thermally or non-thermally evaporate with CH3OH, we have identified three sight-lines in the Serpens core - SMM1, SMM4 and SMM4-W - which are likely to be rich in complex organics. Using the IRAM 30m telescope, narrow lines (FWHM of 1-2 km s-1) of CH3CH","authors_text":"Ewine F. van Dishoeck, Karin I. Oberg, Lars E. Kristensen, Nienke van der Marel","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-07-28T20:23:55Z","title":"Complex molecules toward low-mass protostars: the Serpens core"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1107.5824","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":"sha256:3b94e087461b39bfef04364af0fd7f78ed7ff87d7e08cd3ee7d2fb6f25c06e8a","target":"record","created_at":"2026-05-18T02:01:06Z","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":"48a4931a470c990cd7061a2f0db4ec8a0f562b95b6970837ec2dd3e1c66e7756","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-07-28T20:23:55Z","title_canon_sha256":"d90314444d75bf952152ecebc05898d88f6ba039aff2427759ceb55bfb795ca7"},"schema_version":"1.0","source":{"id":"1107.5824","kind":"arxiv","version":1}},"canonical_sha256":"c907a1e5eff6aee61aa99f62f855e12f5aaa841215e0ba78cb467136eda94131","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c907a1e5eff6aee61aa99f62f855e12f5aaa841215e0ba78cb467136eda94131","first_computed_at":"2026-05-18T02:01:06.112802Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:01:06.112802Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jY66KnjmVTmk/oFi3WpcHFYj5RlPbsFJOjmizsjn2lnJDcZBWb/BlbzC9gPGqABGKP98uGjMo9ZS0fqfi1mgBg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:01:06.113330Z","signed_message":"canonical_sha256_bytes"},"source_id":"1107.5824","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3b94e087461b39bfef04364af0fd7f78ed7ff87d7e08cd3ee7d2fb6f25c06e8a","sha256:352fcbe66ef09b84d5c4b23ad5df4155e2a9ff5baf838dd49f59a44e0d1edb53"],"state_sha256":"730b9d65c3a447827a1109646405869df5b6448346c7c6b5e253349809fc7667"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zQz155bsZc3FiiiLkBis3V/8cZtRAJwHRRLEoNFOf1MS0PPXUugvo+KLa5RoRHFQj4t/p13xypOMgQGA0xasAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T21:15:28.253058Z","bundle_sha256":"9fda850980f89c69dabe42557376b7d7bab4aa8fabada80454f1add2b1b733d0"}}