{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2002:76NB4PXEV2ZJO36QJ64ZCD5EIQ","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":"a88cbab6b3db88a76bb25ecd6a4b0876976dab8ed799ccbf6ff6707a3bfc192e","cross_cats_sorted":[],"license":"","primary_cat":"nlin.SI","submitted_at":"2002-03-08T14:58:21Z","title_canon_sha256":"0c573d20881b29c9e743b7eb52feb8957db90685f5bf17ee8f1a704a3535172f"},"schema_version":"1.0","source":{"id":"nlin/0203014","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"nlin/0203014","created_at":"2026-05-18T01:05:22Z"},{"alias_kind":"arxiv_version","alias_value":"nlin/0203014v1","created_at":"2026-05-18T01:05:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.nlin/0203014","created_at":"2026-05-18T01:05:22Z"},{"alias_kind":"pith_short_12","alias_value":"76NB4PXEV2ZJ","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_16","alias_value":"76NB4PXEV2ZJO36Q","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_8","alias_value":"76NB4PXE","created_at":"2026-05-18T12:25:50Z"}],"graph_snapshots":[{"event_id":"sha256:d290c21bac63c012d74813e5462f1ad05efd70f8ea8a13486bf2beabc6a4f65d","target":"graph","created_at":"2026-05-18T01:05:22Z","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":"The notion of a Laplace ladder for a discrete analogue of the\n Laplace equation is presented. The adjoint of the discrete Moutard equation and a discrete counterpart of the nonlinear form of Goursat equation are introduced.","authors_text":"Maciej Nieszporski","cross_cats":[],"headline":"","license":"","primary_cat":"nlin.SI","submitted_at":"2002-03-08T14:58:21Z","title":"A Laplace ladder of discrete Laplace equations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nlin/0203014","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:dcf2c17a4c05f09404ea3c2a39080f02c93f79311a64154032ce6f112093b775","target":"record","created_at":"2026-05-18T01:05:22Z","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":"a88cbab6b3db88a76bb25ecd6a4b0876976dab8ed799ccbf6ff6707a3bfc192e","cross_cats_sorted":[],"license":"","primary_cat":"nlin.SI","submitted_at":"2002-03-08T14:58:21Z","title_canon_sha256":"0c573d20881b29c9e743b7eb52feb8957db90685f5bf17ee8f1a704a3535172f"},"schema_version":"1.0","source":{"id":"nlin/0203014","kind":"arxiv","version":1}},"canonical_sha256":"ff9a1e3ee4aeb2976fd04fb9910fa4440d522a3baaa194a3846fe502630ba11d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ff9a1e3ee4aeb2976fd04fb9910fa4440d522a3baaa194a3846fe502630ba11d","first_computed_at":"2026-05-18T01:05:22.110180Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:05:22.110180Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"FZ6teEW1Ysev9E8xD60mW6Midex0MED7aYrQCDMzAVAVDMXJ+OZfvdQoI8KJ17lN0Vlmknns8Z2pXo4KMLNjAg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:05:22.110610Z","signed_message":"canonical_sha256_bytes"},"source_id":"nlin/0203014","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dcf2c17a4c05f09404ea3c2a39080f02c93f79311a64154032ce6f112093b775","sha256:d290c21bac63c012d74813e5462f1ad05efd70f8ea8a13486bf2beabc6a4f65d"],"state_sha256":"214de1208584381689c3960b70dedadc18f5aa8afcbfb22dd8172804ff5f6f34"}