{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:PKQWKGDOOMTQSKSSIPESHLAILG","short_pith_number":"pith:PKQWKGDO","canonical_record":{"source":{"id":"1203.3508","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2012-03-15T11:17:56Z","cross_cats_sorted":[],"title_canon_sha256":"cecead8f4e25a420b443c130d15ac7e443a41a124e57dacf806cd683d97908b2","abstract_canon_sha256":"b5943ce04e36dc849d206e04e3b80b3dcf73015a7a1c651416e3d615a7520d6e"},"schema_version":"1.0"},"canonical_sha256":"7aa165186e7327092a5243c923ac0859a6b5319c2cb888c6f10650a0f5857af0","source":{"kind":"arxiv","id":"1203.3508","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1203.3508","created_at":"2026-05-18T04:00:00Z"},{"alias_kind":"arxiv_version","alias_value":"1203.3508v1","created_at":"2026-05-18T04:00:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1203.3508","created_at":"2026-05-18T04:00:00Z"},{"alias_kind":"pith_short_12","alias_value":"PKQWKGDOOMTQ","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_16","alias_value":"PKQWKGDOOMTQSKSS","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_8","alias_value":"PKQWKGDO","created_at":"2026-05-18T12:27:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:PKQWKGDOOMTQSKSSIPESHLAILG","target":"record","payload":{"canonical_record":{"source":{"id":"1203.3508","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2012-03-15T11:17:56Z","cross_cats_sorted":[],"title_canon_sha256":"cecead8f4e25a420b443c130d15ac7e443a41a124e57dacf806cd683d97908b2","abstract_canon_sha256":"b5943ce04e36dc849d206e04e3b80b3dcf73015a7a1c651416e3d615a7520d6e"},"schema_version":"1.0"},"canonical_sha256":"7aa165186e7327092a5243c923ac0859a6b5319c2cb888c6f10650a0f5857af0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:00:00.099948Z","signature_b64":"wMcP3MUKWvz4I3pX0/TxnaHV90NFOYFFMBPsM80gGPnZQW42MIaQ7faxCYKl5P2pH+AX+nI8bq/ayvivJX3WDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7aa165186e7327092a5243c923ac0859a6b5319c2cb888c6f10650a0f5857af0","last_reissued_at":"2026-05-18T04:00:00.097183Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:00:00.097183Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1203.3508","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T04:00:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2WyN8ZeHu+TAztbsFvyAE/kOwimPKGxSfGfIKsfkiMerrf9w0g0VH6moKHPiRdrx75+30o38f10cKH5b1Ul5Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-26T21:47:07.943806Z"},"content_sha256":"a90d571e955a116dfea7fe3557b16303dcb5c594d8c7a5a870ba4c77c66fdfd3","schema_version":"1.0","event_id":"sha256:a90d571e955a116dfea7fe3557b16303dcb5c594d8c7a5a870ba4c77c66fdfd3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:PKQWKGDOOMTQSKSSIPESHLAILG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Merging Knowledge Bases in Possibilistic Logic by Lexicographic Aggregation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.AI","authors_text":"David A. Bell, Guilin Qi, Jianfeng Du, Weiru Liu","submitted_at":"2012-03-15T11:17:56Z","abstract_excerpt":"Belief merging is an important but difficult problem in Artificial Intelligence, especially when sources of information are pervaded with uncertainty. Many merging operators have been proposed to deal with this problem in possibilistic logic, a weighted logic which is powerful for handling inconsistency and deal- ing with uncertainty. They often result in a possibilistic knowledge base which is a set of weighted formulas. Although possibilistic logic is inconsistency tolerant, it suers from the well-known \"drowning effect\". Therefore, we may still want to obtain a consistent possi- bilistic kn"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1203.3508","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T04:00:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"G8Tlu4mBGY+YmCJjREQb4A8/u10gIwBLuFgAcGzL4f/Bqf3rYUZtdQIhUyj5OLWEC0GgqP+GQ7MMLQTxhPEIBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-26T21:47:07.944139Z"},"content_sha256":"66a57293ae67bf80161d0641472eeac93e0e42e86198b4e44454320fb92a1611","schema_version":"1.0","event_id":"sha256:66a57293ae67bf80161d0641472eeac93e0e42e86198b4e44454320fb92a1611"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PKQWKGDOOMTQSKSSIPESHLAILG/bundle.json","state_url":"https://pith.science/pith/PKQWKGDOOMTQSKSSIPESHLAILG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PKQWKGDOOMTQSKSSIPESHLAILG/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-26T21:47:07Z","links":{"resolver":"https://pith.science/pith/PKQWKGDOOMTQSKSSIPESHLAILG","bundle":"https://pith.science/pith/PKQWKGDOOMTQSKSSIPESHLAILG/bundle.json","state":"https://pith.science/pith/PKQWKGDOOMTQSKSSIPESHLAILG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PKQWKGDOOMTQSKSSIPESHLAILG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:PKQWKGDOOMTQSKSSIPESHLAILG","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":"b5943ce04e36dc849d206e04e3b80b3dcf73015a7a1c651416e3d615a7520d6e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2012-03-15T11:17:56Z","title_canon_sha256":"cecead8f4e25a420b443c130d15ac7e443a41a124e57dacf806cd683d97908b2"},"schema_version":"1.0","source":{"id":"1203.3508","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1203.3508","created_at":"2026-05-18T04:00:00Z"},{"alias_kind":"arxiv_version","alias_value":"1203.3508v1","created_at":"2026-05-18T04:00:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1203.3508","created_at":"2026-05-18T04:00:00Z"},{"alias_kind":"pith_short_12","alias_value":"PKQWKGDOOMTQ","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_16","alias_value":"PKQWKGDOOMTQSKSS","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_8","alias_value":"PKQWKGDO","created_at":"2026-05-18T12:27:18Z"}],"graph_snapshots":[{"event_id":"sha256:66a57293ae67bf80161d0641472eeac93e0e42e86198b4e44454320fb92a1611","target":"graph","created_at":"2026-05-18T04:00:00Z","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":"Belief merging is an important but difficult problem in Artificial Intelligence, especially when sources of information are pervaded with uncertainty. Many merging operators have been proposed to deal with this problem in possibilistic logic, a weighted logic which is powerful for handling inconsistency and deal- ing with uncertainty. They often result in a possibilistic knowledge base which is a set of weighted formulas. Although possibilistic logic is inconsistency tolerant, it suers from the well-known \"drowning effect\". Therefore, we may still want to obtain a consistent possi- bilistic kn","authors_text":"David A. Bell, Guilin Qi, Jianfeng Du, Weiru Liu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2012-03-15T11:17:56Z","title":"Merging Knowledge Bases in Possibilistic Logic by Lexicographic Aggregation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1203.3508","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:a90d571e955a116dfea7fe3557b16303dcb5c594d8c7a5a870ba4c77c66fdfd3","target":"record","created_at":"2026-05-18T04:00:00Z","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":"b5943ce04e36dc849d206e04e3b80b3dcf73015a7a1c651416e3d615a7520d6e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2012-03-15T11:17:56Z","title_canon_sha256":"cecead8f4e25a420b443c130d15ac7e443a41a124e57dacf806cd683d97908b2"},"schema_version":"1.0","source":{"id":"1203.3508","kind":"arxiv","version":1}},"canonical_sha256":"7aa165186e7327092a5243c923ac0859a6b5319c2cb888c6f10650a0f5857af0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7aa165186e7327092a5243c923ac0859a6b5319c2cb888c6f10650a0f5857af0","first_computed_at":"2026-05-18T04:00:00.097183Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:00:00.097183Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wMcP3MUKWvz4I3pX0/TxnaHV90NFOYFFMBPsM80gGPnZQW42MIaQ7faxCYKl5P2pH+AX+nI8bq/ayvivJX3WDg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:00:00.099948Z","signed_message":"canonical_sha256_bytes"},"source_id":"1203.3508","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a90d571e955a116dfea7fe3557b16303dcb5c594d8c7a5a870ba4c77c66fdfd3","sha256:66a57293ae67bf80161d0641472eeac93e0e42e86198b4e44454320fb92a1611"],"state_sha256":"4c42e5f71a39898413dfaff376292d4a50fd503bfdd6f90f6394e2773b298799"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3N1eIegYs+RRn14qAec1ffFyIpb+O6WqnZQY8nYiF3XZeXpnWaXwy4bFzIgiFcyO8hj+f40cAb+WWSwxHmKxBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-26T21:47:07.945990Z","bundle_sha256":"4b7f2ca7f60dae2da27b5d9014d7efb762207acafcc35de487bae472a6e286f3"}}