{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:PYNHW5XPCGVQWKD7VMWZS2RLGY","short_pith_number":"pith:PYNHW5XP","schema_version":"1.0","canonical_sha256":"7e1a7b76ef11ab0b287fab2d996a2b361ce916c3ca2eda27eada1366e382f0d1","source":{"kind":"arxiv","id":"1902.00559","version":1},"attestation_state":"computed","paper":{"title":"A Conjecture of Trautman","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"math.CV","authors_text":"Howard Jacobowitz","submitted_at":"2019-02-01T20:50:29Z","abstract_excerpt":"In 1998 the physicist Andre Trautman conjectured that a three-dimensional CR manifold is locally realizable if and only if its canonical bundle admits a closed nowhere zero section. We review the relevant definitions, give the physical context, and outline an earlier result which established a weak version of the Conjecture."},"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":"1902.00559","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.CV","submitted_at":"2019-02-01T20:50:29Z","cross_cats_sorted":[],"title_canon_sha256":"cc6f307de5d3e697b95c0b250491c409505ef597fa0001f1fd58e49490d112cb","abstract_canon_sha256":"05da224c6809b62b310c934e4d2f859c967ef9efaa0e997ef836209268e90baa"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:54:52.820768Z","signature_b64":"2FfBK7WyKxyMsja6vg2koCUSY/XRwfK6TOmJBE0Jm2zuAS9posUO52Nt3LVOu0TnGVnPmlxXEaix7AeDgiEEAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7e1a7b76ef11ab0b287fab2d996a2b361ce916c3ca2eda27eada1366e382f0d1","last_reissued_at":"2026-05-17T23:54:52.820154Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:54:52.820154Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A Conjecture of Trautman","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"math.CV","authors_text":"Howard Jacobowitz","submitted_at":"2019-02-01T20:50:29Z","abstract_excerpt":"In 1998 the physicist Andre Trautman conjectured that a three-dimensional CR manifold is locally realizable if and only if its canonical bundle admits a closed nowhere zero section. We review the relevant definitions, give the physical context, and outline an earlier result which established a weak version of the Conjecture."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.00559","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":"1902.00559","created_at":"2026-05-17T23:54:52.820243+00:00"},{"alias_kind":"arxiv_version","alias_value":"1902.00559v1","created_at":"2026-05-17T23:54:52.820243+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.00559","created_at":"2026-05-17T23:54:52.820243+00:00"},{"alias_kind":"pith_short_12","alias_value":"PYNHW5XPCGVQ","created_at":"2026-05-18T12:33:24.271573+00:00"},{"alias_kind":"pith_short_16","alias_value":"PYNHW5XPCGVQWKD7","created_at":"2026-05-18T12:33:24.271573+00:00"},{"alias_kind":"pith_short_8","alias_value":"PYNHW5XP","created_at":"2026-05-18T12:33:24.271573+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/PYNHW5XPCGVQWKD7VMWZS2RLGY","json":"https://pith.science/pith/PYNHW5XPCGVQWKD7VMWZS2RLGY.json","graph_json":"https://pith.science/api/pith-number/PYNHW5XPCGVQWKD7VMWZS2RLGY/graph.json","events_json":"https://pith.science/api/pith-number/PYNHW5XPCGVQWKD7VMWZS2RLGY/events.json","paper":"https://pith.science/paper/PYNHW5XP"},"agent_actions":{"view_html":"https://pith.science/pith/PYNHW5XPCGVQWKD7VMWZS2RLGY","download_json":"https://pith.science/pith/PYNHW5XPCGVQWKD7VMWZS2RLGY.json","view_paper":"https://pith.science/paper/PYNHW5XP","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1902.00559&json=true","fetch_graph":"https://pith.science/api/pith-number/PYNHW5XPCGVQWKD7VMWZS2RLGY/graph.json","fetch_events":"https://pith.science/api/pith-number/PYNHW5XPCGVQWKD7VMWZS2RLGY/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/PYNHW5XPCGVQWKD7VMWZS2RLGY/action/timestamp_anchor","attest_storage":"https://pith.science/pith/PYNHW5XPCGVQWKD7VMWZS2RLGY/action/storage_attestation","attest_author":"https://pith.science/pith/PYNHW5XPCGVQWKD7VMWZS2RLGY/action/author_attestation","sign_citation":"https://pith.science/pith/PYNHW5XPCGVQWKD7VMWZS2RLGY/action/citation_signature","submit_replication":"https://pith.science/pith/PYNHW5XPCGVQWKD7VMWZS2RLGY/action/replication_record"}},"created_at":"2026-05-17T23:54:52.820243+00:00","updated_at":"2026-05-17T23:54:52.820243+00:00"}