{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:EJNMVPCSWHRGPVJN6AVHFKJW2J","short_pith_number":"pith:EJNMVPCS","schema_version":"1.0","canonical_sha256":"225acabc52b1e267d52df02a72a936d249e28bf512ad4b3d49364e7ed879dab9","source":{"kind":"arxiv","id":"1606.07483","version":1},"attestation_state":"computed","paper":{"title":"Discovery of the Interstellar Chiral Molecule Propylene Oxide (CH$_3$CHCH$_2$O)","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Anthony J. Remijan, Brett A. McGuire, Geoffrey A. Blake, Ian A. Finneran, P. Brandon Carroll, Philip R. Jewell, Ryan A. Loomis","submitted_at":"2016-06-23T21:24:59Z","abstract_excerpt":"Life on Earth relies on chiral molecules, that is, species not superimposable on their mirror images. This manifests itself in the selection of a single molecular handedness, or homochirality, across the biosphere. We present the astronomical detection of a chiral molecule, propylene oxide (CH$_3$CHCH$_2$O), in absorption toward the Galactic Center. Propylene oxide is detected in the gas phase in a cold, extended molecular shell around the embedded, massive protostellar clusters in the Sagittarius B2 star-forming region. This material is representative of the earliest stage of solar system evo"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1606.07483","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-06-23T21:24:59Z","cross_cats_sorted":[],"title_canon_sha256":"d4060acd035b7becbfdbc49228637e8711f45b8d120a246332698bd25d982c01","abstract_canon_sha256":"7e6d69f8b88aacd45f93926e0b293c0e31c5b2c31a4c5a7527c66a3d05415c7f"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:07:53.566404Z","signature_b64":"8TjTeCXNIuavRt8/k3HiQHkYwiERub0F2UbLGglfqSoTN2MPDeKuxF0uhUQOk4m6Vq5JuNCmQOQELW/aib3aBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"225acabc52b1e267d52df02a72a936d249e28bf512ad4b3d49364e7ed879dab9","last_reissued_at":"2026-05-18T01:07:53.565955Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:07:53.565955Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Discovery of the Interstellar Chiral Molecule Propylene Oxide (CH$_3$CHCH$_2$O)","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Anthony J. Remijan, Brett A. McGuire, Geoffrey A. Blake, Ian A. Finneran, P. Brandon Carroll, Philip R. Jewell, Ryan A. Loomis","submitted_at":"2016-06-23T21:24:59Z","abstract_excerpt":"Life on Earth relies on chiral molecules, that is, species not superimposable on their mirror images. This manifests itself in the selection of a single molecular handedness, or homochirality, across the biosphere. We present the astronomical detection of a chiral molecule, propylene oxide (CH$_3$CHCH$_2$O), in absorption toward the Galactic Center. Propylene oxide is detected in the gas phase in a cold, extended molecular shell around the embedded, massive protostellar clusters in the Sagittarius B2 star-forming region. This material is representative of the earliest stage of solar system evo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1606.07483","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1606.07483","created_at":"2026-05-18T01:07:53.566023+00:00"},{"alias_kind":"arxiv_version","alias_value":"1606.07483v1","created_at":"2026-05-18T01:07:53.566023+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1606.07483","created_at":"2026-05-18T01:07:53.566023+00:00"},{"alias_kind":"pith_short_12","alias_value":"EJNMVPCSWHRG","created_at":"2026-05-18T12:30:12.583610+00:00"},{"alias_kind":"pith_short_16","alias_value":"EJNMVPCSWHRGPVJN","created_at":"2026-05-18T12:30:12.583610+00:00"},{"alias_kind":"pith_short_8","alias_value":"EJNMVPCS","created_at":"2026-05-18T12:30:12.583610+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/EJNMVPCSWHRGPVJN6AVHFKJW2J","json":"https://pith.science/pith/EJNMVPCSWHRGPVJN6AVHFKJW2J.json","graph_json":"https://pith.science/api/pith-number/EJNMVPCSWHRGPVJN6AVHFKJW2J/graph.json","events_json":"https://pith.science/api/pith-number/EJNMVPCSWHRGPVJN6AVHFKJW2J/events.json","paper":"https://pith.science/paper/EJNMVPCS"},"agent_actions":{"view_html":"https://pith.science/pith/EJNMVPCSWHRGPVJN6AVHFKJW2J","download_json":"https://pith.science/pith/EJNMVPCSWHRGPVJN6AVHFKJW2J.json","view_paper":"https://pith.science/paper/EJNMVPCS","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1606.07483&json=true","fetch_graph":"https://pith.science/api/pith-number/EJNMVPCSWHRGPVJN6AVHFKJW2J/graph.json","fetch_events":"https://pith.science/api/pith-number/EJNMVPCSWHRGPVJN6AVHFKJW2J/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/EJNMVPCSWHRGPVJN6AVHFKJW2J/action/timestamp_anchor","attest_storage":"https://pith.science/pith/EJNMVPCSWHRGPVJN6AVHFKJW2J/action/storage_attestation","attest_author":"https://pith.science/pith/EJNMVPCSWHRGPVJN6AVHFKJW2J/action/author_attestation","sign_citation":"https://pith.science/pith/EJNMVPCSWHRGPVJN6AVHFKJW2J/action/citation_signature","submit_replication":"https://pith.science/pith/EJNMVPCSWHRGPVJN6AVHFKJW2J/action/replication_record"}},"created_at":"2026-05-18T01:07:53.566023+00:00","updated_at":"2026-05-18T01:07:53.566023+00:00"}