{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:7J445AUXUOTGUAOOAJEQGSAAH5","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":"0c7d2776a6f13c8bab2fd719d6942d7b3b66dcd7cfc1928353541c3d2075286f","cross_cats_sorted":["cs.AI","cs.LO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.LO","submitted_at":"2014-03-25T21:22:37Z","title_canon_sha256":"6522e2c9accf401993c8e9bba4f79f6478b174f072385c3c0a726612368c6a91"},"schema_version":"1.0","source":{"id":"1403.6512","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1403.6512","created_at":"2026-05-18T02:55:12Z"},{"alias_kind":"arxiv_version","alias_value":"1403.6512v2","created_at":"2026-05-18T02:55:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1403.6512","created_at":"2026-05-18T02:55:12Z"},{"alias_kind":"pith_short_12","alias_value":"7J445AUXUOTG","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_16","alias_value":"7J445AUXUOTGUAOO","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_8","alias_value":"7J445AUX","created_at":"2026-05-18T12:28:19Z"}],"graph_snapshots":[{"event_id":"sha256:199e5c71fb5cf8e0f6bcab702a4c6d1312f2770fa47f417b529f16bbe414f9de","target":"graph","created_at":"2026-05-18T02:55:12Z","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":"A formal framework is given for the characterizability of a class of belief revision operators, defined using minimization over a class of partial preorders, by postulates. It is shown that for partial orders characterizability implies a definability property of the class of partial orders in monadic second-order logic. Based on a non-definability result for a class of partial orders, an example is given of a non-characterizable class of revision operators. This appears to be the first non-characterizability result in belief revision.","authors_text":"Gyorgy Turan, Jon Yaggie","cross_cats":["cs.AI","cs.LO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.LO","submitted_at":"2014-03-25T21:22:37Z","title":"Non-characterizability of belief revision: an application of finite model theory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1403.6512","kind":"arxiv","version":2},"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:d6646af9c88a52c24358ac228d37072a14bec9cb0ac874fce3ebd6a99063b40b","target":"record","created_at":"2026-05-18T02:55:12Z","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":"0c7d2776a6f13c8bab2fd719d6942d7b3b66dcd7cfc1928353541c3d2075286f","cross_cats_sorted":["cs.AI","cs.LO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.LO","submitted_at":"2014-03-25T21:22:37Z","title_canon_sha256":"6522e2c9accf401993c8e9bba4f79f6478b174f072385c3c0a726612368c6a91"},"schema_version":"1.0","source":{"id":"1403.6512","kind":"arxiv","version":2}},"canonical_sha256":"fa79ce8297a3a66a01ce02490348003f5467ec1f572e6ee28356ab443a5b001e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fa79ce8297a3a66a01ce02490348003f5467ec1f572e6ee28356ab443a5b001e","first_computed_at":"2026-05-18T02:55:12.833711Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:55:12.833711Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cCsTMZAuH3cPnSRAlvEa/c0yNNItQf3Lm4J1+qR1eWhuc0gbg58Oe8VS7OQlfvdUGw+7v+K/iZiCKtA7hBxTCg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:55:12.834287Z","signed_message":"canonical_sha256_bytes"},"source_id":"1403.6512","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d6646af9c88a52c24358ac228d37072a14bec9cb0ac874fce3ebd6a99063b40b","sha256:199e5c71fb5cf8e0f6bcab702a4c6d1312f2770fa47f417b529f16bbe414f9de"],"state_sha256":"3ad2327b4ec13c6aebdbd8c645a22d843aa44930c7230b4f6b32e76ea752afab"}