{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:CWESBVG3M3DJE66SPG66RBDQ7E","short_pith_number":"pith:CWESBVG3","canonical_record":{"source":{"id":"1907.09114","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GT","submitted_at":"2019-07-22T03:18:48Z","cross_cats_sorted":["cs.AI","cs.LO"],"title_canon_sha256":"130c20d2661ced720bff73a284f5d7afeb9ac86482cebf97b49a395e8816b3f1","abstract_canon_sha256":"c6f4d559f40b6e59ea233569f7e86289ee969fb7ca904a7520bd182687b3f668"},"schema_version":"1.0"},"canonical_sha256":"158920d4db66c6927bd279bde88470f901c95f745022a6c71fc68de4b41ae3aa","source":{"kind":"arxiv","id":"1907.09114","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.09114","created_at":"2026-05-17T23:40:00Z"},{"alias_kind":"arxiv_version","alias_value":"1907.09114v1","created_at":"2026-05-17T23:40:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.09114","created_at":"2026-05-17T23:40:00Z"},{"alias_kind":"pith_short_12","alias_value":"CWESBVG3M3DJ","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_16","alias_value":"CWESBVG3M3DJE66S","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_8","alias_value":"CWESBVG3","created_at":"2026-05-18T12:33:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:CWESBVG3M3DJE66SPG66RBDQ7E","target":"record","payload":{"canonical_record":{"source":{"id":"1907.09114","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GT","submitted_at":"2019-07-22T03:18:48Z","cross_cats_sorted":["cs.AI","cs.LO"],"title_canon_sha256":"130c20d2661ced720bff73a284f5d7afeb9ac86482cebf97b49a395e8816b3f1","abstract_canon_sha256":"c6f4d559f40b6e59ea233569f7e86289ee969fb7ca904a7520bd182687b3f668"},"schema_version":"1.0"},"canonical_sha256":"158920d4db66c6927bd279bde88470f901c95f745022a6c71fc68de4b41ae3aa","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:40:00.088189Z","signature_b64":"AMNqKimDmnyN4IGdY0GVzmiBLFE9T20FinYag0Y/Fgnkfc/XXbM/ilvWpUpsoS62xV714qtq86vY8d0BiVeoAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"158920d4db66c6927bd279bde88470f901c95f745022a6c71fc68de4b41ae3aa","last_reissued_at":"2026-05-17T23:40:00.087778Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:40:00.087778Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1907.09114","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":"2026-05-17T23:40:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ja9n+/SSkz5QNFuoBCHQ4/MbclNAegq2AqUcgJlkHtFJVn5sAYsQrvE+EDBBXjUwa0FV/Vcu0uI9QdRJP9lHBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T17:26:45.675959Z"},"content_sha256":"7fc04a804f38267e692c260d696ac837f18c706100ce5e49a9fcea7e8155f993","schema_version":"1.0","event_id":"sha256:7fc04a804f38267e692c260d696ac837f18c706100ce5e49a9fcea7e8155f993"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:CWESBVG3M3DJE66SPG66RBDQ7E","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Exploiting Belief Bases for Building Rich Epistemic Structures","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.AI","cs.LO"],"primary_cat":"cs.GT","authors_text":"Emiliano Lorini (IRIT-CNRS, France), Toulouse University","submitted_at":"2019-07-22T03:18:48Z","abstract_excerpt":"We introduce a semantics for epistemic logic exploiting a belief base abstraction. Differently from existing Kripke-style semantics for epistemic logic in which the notions of possible world and epistemic alternative are primitive, in the proposed semantics they are non-primitive but are defined from the concept of belief base. We show that this semantics allows us to define the universal epistemic model in a simpler and more compact way than existing inductive constructions of it. We provide (i) a number of semantic equivalence results for both the basic epistemic language with \"individual be"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.09114","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":"2026-05-17T23:40:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fkuRj7ApJiqjMmvMEF1tJmYiB1RoLXXSu6Ql2dBhJ9cwVOp3tzV/Ok2OpO/XtiX+fqVFolmbO0r3o+zlUWR8AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T17:26:45.676525Z"},"content_sha256":"4ca645b5b9601dabe9235d5080d25adc67bd9dbafd2b5300888b3b51713c7168","schema_version":"1.0","event_id":"sha256:4ca645b5b9601dabe9235d5080d25adc67bd9dbafd2b5300888b3b51713c7168"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CWESBVG3M3DJE66SPG66RBDQ7E/bundle.json","state_url":"https://pith.science/pith/CWESBVG3M3DJE66SPG66RBDQ7E/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CWESBVG3M3DJE66SPG66RBDQ7E/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":"2026-06-02T17:26:45Z","links":{"resolver":"https://pith.science/pith/CWESBVG3M3DJE66SPG66RBDQ7E","bundle":"https://pith.science/pith/CWESBVG3M3DJE66SPG66RBDQ7E/bundle.json","state":"https://pith.science/pith/CWESBVG3M3DJE66SPG66RBDQ7E/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CWESBVG3M3DJE66SPG66RBDQ7E/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:CWESBVG3M3DJE66SPG66RBDQ7E","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":"c6f4d559f40b6e59ea233569f7e86289ee969fb7ca904a7520bd182687b3f668","cross_cats_sorted":["cs.AI","cs.LO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GT","submitted_at":"2019-07-22T03:18:48Z","title_canon_sha256":"130c20d2661ced720bff73a284f5d7afeb9ac86482cebf97b49a395e8816b3f1"},"schema_version":"1.0","source":{"id":"1907.09114","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.09114","created_at":"2026-05-17T23:40:00Z"},{"alias_kind":"arxiv_version","alias_value":"1907.09114v1","created_at":"2026-05-17T23:40:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.09114","created_at":"2026-05-17T23:40:00Z"},{"alias_kind":"pith_short_12","alias_value":"CWESBVG3M3DJ","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_16","alias_value":"CWESBVG3M3DJE66S","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_8","alias_value":"CWESBVG3","created_at":"2026-05-18T12:33:15Z"}],"graph_snapshots":[{"event_id":"sha256:4ca645b5b9601dabe9235d5080d25adc67bd9dbafd2b5300888b3b51713c7168","target":"graph","created_at":"2026-05-17T23:40:00Z","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":"We introduce a semantics for epistemic logic exploiting a belief base abstraction. Differently from existing Kripke-style semantics for epistemic logic in which the notions of possible world and epistemic alternative are primitive, in the proposed semantics they are non-primitive but are defined from the concept of belief base. We show that this semantics allows us to define the universal epistemic model in a simpler and more compact way than existing inductive constructions of it. We provide (i) a number of semantic equivalence results for both the basic epistemic language with \"individual be","authors_text":"Emiliano Lorini (IRIT-CNRS, France), Toulouse University","cross_cats":["cs.AI","cs.LO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GT","submitted_at":"2019-07-22T03:18:48Z","title":"Exploiting Belief Bases for Building Rich Epistemic Structures"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.09114","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":"sha256:7fc04a804f38267e692c260d696ac837f18c706100ce5e49a9fcea7e8155f993","target":"record","created_at":"2026-05-17T23:40:00Z","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":"c6f4d559f40b6e59ea233569f7e86289ee969fb7ca904a7520bd182687b3f668","cross_cats_sorted":["cs.AI","cs.LO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GT","submitted_at":"2019-07-22T03:18:48Z","title_canon_sha256":"130c20d2661ced720bff73a284f5d7afeb9ac86482cebf97b49a395e8816b3f1"},"schema_version":"1.0","source":{"id":"1907.09114","kind":"arxiv","version":1}},"canonical_sha256":"158920d4db66c6927bd279bde88470f901c95f745022a6c71fc68de4b41ae3aa","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"158920d4db66c6927bd279bde88470f901c95f745022a6c71fc68de4b41ae3aa","first_computed_at":"2026-05-17T23:40:00.087778Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:40:00.087778Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"AMNqKimDmnyN4IGdY0GVzmiBLFE9T20FinYag0Y/Fgnkfc/XXbM/ilvWpUpsoS62xV714qtq86vY8d0BiVeoAQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:40:00.088189Z","signed_message":"canonical_sha256_bytes"},"source_id":"1907.09114","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7fc04a804f38267e692c260d696ac837f18c706100ce5e49a9fcea7e8155f993","sha256:4ca645b5b9601dabe9235d5080d25adc67bd9dbafd2b5300888b3b51713c7168"],"state_sha256":"d6a36496a9a75993ce83bc8eaa9e9548700acd0820eec2db82cb5bfffab86c7b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"n+EQxq62A1QONNpb6Tqi9B0Q9K50TUst4nwMvNlNh2LII+iN1xNBY0zy6T73Xd5AbRCu0ya1PlV1EpwekQ50Bw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T17:26:45.679258Z","bundle_sha256":"930795c38a9ca67bfa5f3a0c2114d941a1a2eadfd856f63f676f30c2034b4a3d"}}