{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:BIII3FKLEPGG33OTFTMQMSMRKW","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":"6d25b64366ec1dd7345f1baad0d01cd8d754c38ac07c8cae685e371c6d0099eb","cross_cats_sorted":["gr-qc","math-ph","math.MP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.SI","submitted_at":"2019-01-22T18:59:37Z","title_canon_sha256":"05bf492447cb4fb7bb98894bb08274a6be3584a871dc7d0c1d959fc50c845a23"},"schema_version":"1.0","source":{"id":"1901.07527","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.07527","created_at":"2026-05-17T23:39:47Z"},{"alias_kind":"arxiv_version","alias_value":"1901.07527v3","created_at":"2026-05-17T23:39:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.07527","created_at":"2026-05-17T23:39:47Z"},{"alias_kind":"pith_short_12","alias_value":"BIII3FKLEPGG","created_at":"2026-05-18T12:33:12Z"},{"alias_kind":"pith_short_16","alias_value":"BIII3FKLEPGG33OT","created_at":"2026-05-18T12:33:12Z"},{"alias_kind":"pith_short_8","alias_value":"BIII3FKL","created_at":"2026-05-18T12:33:12Z"}],"graph_snapshots":[{"event_id":"sha256:064f37b7349d125376e836f604a9fc7659320e35dc2ca7383f5d29e818d9f336","target":"graph","created_at":"2026-05-17T23:39:47Z","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":"We present an infinite hierarchy of nonlocal conservation laws for the Przanowski equation, an integrable second-order PDE locally equivalent to anti-self-dual vacuum Einstein equations with nonzero cosmological constant. The hierarchy in question is constructed using a nonisospectral Lax pair for the equation under study. As a byproduct, we obtain an infinite-dimensional differential covering over the Przanowski equation.","authors_text":"A. Sergyeyev, I. Krasil'shchik","cross_cats":["gr-qc","math-ph","math.MP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.SI","submitted_at":"2019-01-22T18:59:37Z","title":"Integrability of anti-self-dual vacuum Einstein equations with nonzero cosmological constant: an infinite hierarchy of nonlocal conservation laws"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.07527","kind":"arxiv","version":3},"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:de8560285c5dbb0bacae81d6348e7090f4358939083a6c12d1c1cb704ed4ed5a","target":"record","created_at":"2026-05-17T23:39:47Z","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":"6d25b64366ec1dd7345f1baad0d01cd8d754c38ac07c8cae685e371c6d0099eb","cross_cats_sorted":["gr-qc","math-ph","math.MP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.SI","submitted_at":"2019-01-22T18:59:37Z","title_canon_sha256":"05bf492447cb4fb7bb98894bb08274a6be3584a871dc7d0c1d959fc50c845a23"},"schema_version":"1.0","source":{"id":"1901.07527","kind":"arxiv","version":3}},"canonical_sha256":"0a108d954b23cc6dedd32cd906499155a8d0f7a2a783e42246617ab27fdc7548","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0a108d954b23cc6dedd32cd906499155a8d0f7a2a783e42246617ab27fdc7548","first_computed_at":"2026-05-17T23:39:47.262380Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:39:47.262380Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"avKA2tXBQbayWcLOwT5cZOLOnO0MzfKFA8elAiXEaNuY5Hj20bdO8MouY9ThcwZ7dAEL6Kah6WnFTY0Z955NBA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:39:47.263127Z","signed_message":"canonical_sha256_bytes"},"source_id":"1901.07527","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:de8560285c5dbb0bacae81d6348e7090f4358939083a6c12d1c1cb704ed4ed5a","sha256:064f37b7349d125376e836f604a9fc7659320e35dc2ca7383f5d29e818d9f336"],"state_sha256":"ec4353ef6efbb26aab55088c5b9727af0277318914cee5bb149baad6149a6c81"}