{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:AYR6HUEUKE4RWBQZSGKZQ27ILY","short_pith_number":"pith:AYR6HUEU","canonical_record":{"source":{"id":"1906.00179","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DB","submitted_at":"2019-06-01T08:15:48Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"2d0d55b7279f0c9fbcbfcedc1936c2933a70e798df32e0668eeda8f2a7ffb6c1","abstract_canon_sha256":"77617773dee7ef5c051fb31146fcff72925d483867c0b8a899c646edec4736a7"},"schema_version":"1.0"},"canonical_sha256":"0623e3d09451391b06199195986be85e23ab2ade304224d30b51294d9a41310b","source":{"kind":"arxiv","id":"1906.00179","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1906.00179","created_at":"2026-05-17T23:44:27Z"},{"alias_kind":"arxiv_version","alias_value":"1906.00179v1","created_at":"2026-05-17T23:44:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1906.00179","created_at":"2026-05-17T23:44:27Z"},{"alias_kind":"pith_short_12","alias_value":"AYR6HUEUKE4R","created_at":"2026-05-18T12:33:12Z"},{"alias_kind":"pith_short_16","alias_value":"AYR6HUEUKE4RWBQZ","created_at":"2026-05-18T12:33:12Z"},{"alias_kind":"pith_short_8","alias_value":"AYR6HUEU","created_at":"2026-05-18T12:33:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:AYR6HUEUKE4RWBQZSGKZQ27ILY","target":"record","payload":{"canonical_record":{"source":{"id":"1906.00179","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DB","submitted_at":"2019-06-01T08:15:48Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"2d0d55b7279f0c9fbcbfcedc1936c2933a70e798df32e0668eeda8f2a7ffb6c1","abstract_canon_sha256":"77617773dee7ef5c051fb31146fcff72925d483867c0b8a899c646edec4736a7"},"schema_version":"1.0"},"canonical_sha256":"0623e3d09451391b06199195986be85e23ab2ade304224d30b51294d9a41310b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:44:27.911052Z","signature_b64":"iclzOlXZC0BWZnBeaWFYMB/tfOy0A5g1p5pNV9Q5SIkIgqKV720kkDtutmm12trZLXoqzA01eLg5hhuAYa/KDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0623e3d09451391b06199195986be85e23ab2ade304224d30b51294d9a41310b","last_reissued_at":"2026-05-17T23:44:27.910432Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:44:27.910432Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1906.00179","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":"2026-05-17T23:44:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ddsrLHCFOdesPmCLB970Z62915dXV+1df03UHUud3/7f4auagkgccUPBBaqL+HuzBbSsWJ2UR1MdpPZAhhy0Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T02:06:40.493413Z"},"content_sha256":"58cff4e9d4d7680e6981a75ada6f75efcb640f1344f65bce975b90f6c2192b83","schema_version":"1.0","event_id":"sha256:58cff4e9d4d7680e6981a75ada6f75efcb640f1344f65bce975b90f6c2192b83"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:AYR6HUEUKE4RWBQZSGKZQ27ILY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Enriching Ontology-based Data Access with Provenance (Extended Version)","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.AI"],"primary_cat":"cs.DB","authors_text":"Ana Ozaki, Davide Lanti, Diego Calvanese, Guohui Xiao, Rafael Penaloza","submitted_at":"2019-06-01T08:15:48Z","abstract_excerpt":"Ontology-based data access (OBDA) is a popular paradigm for querying heterogeneous data sources by connecting them through mappings to an ontology. In OBDA, it is often difficult to reconstruct why a tuple occurs in the answer of a query. We address this challenge by enriching OBDA with provenance semirings, taking inspiration from database theory. In particular, we investigate the problems of (i) deciding whether a provenance annotated OBDA instance entails a provenance annotated conjunctive query, and (ii) computing a polynomial representing the provenance of a query entailed by a provenance"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1906.00179","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":"2026-05-17T23:44:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jG/QtlazAxyvArmNqK4jDYKXY6woYRXL2RI6uzSEKBL4+inLjQdIwConvSi2DknrZWUAFwoOywta74IjWqQPDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T02:06:40.494033Z"},"content_sha256":"bec5097784fb302c5621a8a5de000cb52e0c9049cc2c4752df28ddda17a754b2","schema_version":"1.0","event_id":"sha256:bec5097784fb302c5621a8a5de000cb52e0c9049cc2c4752df28ddda17a754b2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AYR6HUEUKE4RWBQZSGKZQ27ILY/bundle.json","state_url":"https://pith.science/pith/AYR6HUEUKE4RWBQZSGKZQ27ILY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AYR6HUEUKE4RWBQZSGKZQ27ILY/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":"2026-06-05T02:06:40Z","links":{"resolver":"https://pith.science/pith/AYR6HUEUKE4RWBQZSGKZQ27ILY","bundle":"https://pith.science/pith/AYR6HUEUKE4RWBQZSGKZQ27ILY/bundle.json","state":"https://pith.science/pith/AYR6HUEUKE4RWBQZSGKZQ27ILY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AYR6HUEUKE4RWBQZSGKZQ27ILY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:AYR6HUEUKE4RWBQZSGKZQ27ILY","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":"77617773dee7ef5c051fb31146fcff72925d483867c0b8a899c646edec4736a7","cross_cats_sorted":["cs.AI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DB","submitted_at":"2019-06-01T08:15:48Z","title_canon_sha256":"2d0d55b7279f0c9fbcbfcedc1936c2933a70e798df32e0668eeda8f2a7ffb6c1"},"schema_version":"1.0","source":{"id":"1906.00179","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1906.00179","created_at":"2026-05-17T23:44:27Z"},{"alias_kind":"arxiv_version","alias_value":"1906.00179v1","created_at":"2026-05-17T23:44:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1906.00179","created_at":"2026-05-17T23:44:27Z"},{"alias_kind":"pith_short_12","alias_value":"AYR6HUEUKE4R","created_at":"2026-05-18T12:33:12Z"},{"alias_kind":"pith_short_16","alias_value":"AYR6HUEUKE4RWBQZ","created_at":"2026-05-18T12:33:12Z"},{"alias_kind":"pith_short_8","alias_value":"AYR6HUEU","created_at":"2026-05-18T12:33:12Z"}],"graph_snapshots":[{"event_id":"sha256:bec5097784fb302c5621a8a5de000cb52e0c9049cc2c4752df28ddda17a754b2","target":"graph","created_at":"2026-05-17T23:44:27Z","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":"Ontology-based data access (OBDA) is a popular paradigm for querying heterogeneous data sources by connecting them through mappings to an ontology. In OBDA, it is often difficult to reconstruct why a tuple occurs in the answer of a query. We address this challenge by enriching OBDA with provenance semirings, taking inspiration from database theory. In particular, we investigate the problems of (i) deciding whether a provenance annotated OBDA instance entails a provenance annotated conjunctive query, and (ii) computing a polynomial representing the provenance of a query entailed by a provenance","authors_text":"Ana Ozaki, Davide Lanti, Diego Calvanese, Guohui Xiao, Rafael Penaloza","cross_cats":["cs.AI"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DB","submitted_at":"2019-06-01T08:15:48Z","title":"Enriching Ontology-based Data Access with Provenance (Extended Version)"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1906.00179","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":"sha256:58cff4e9d4d7680e6981a75ada6f75efcb640f1344f65bce975b90f6c2192b83","target":"record","created_at":"2026-05-17T23:44:27Z","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":"77617773dee7ef5c051fb31146fcff72925d483867c0b8a899c646edec4736a7","cross_cats_sorted":["cs.AI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DB","submitted_at":"2019-06-01T08:15:48Z","title_canon_sha256":"2d0d55b7279f0c9fbcbfcedc1936c2933a70e798df32e0668eeda8f2a7ffb6c1"},"schema_version":"1.0","source":{"id":"1906.00179","kind":"arxiv","version":1}},"canonical_sha256":"0623e3d09451391b06199195986be85e23ab2ade304224d30b51294d9a41310b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0623e3d09451391b06199195986be85e23ab2ade304224d30b51294d9a41310b","first_computed_at":"2026-05-17T23:44:27.910432Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:44:27.910432Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"iclzOlXZC0BWZnBeaWFYMB/tfOy0A5g1p5pNV9Q5SIkIgqKV720kkDtutmm12trZLXoqzA01eLg5hhuAYa/KDg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:44:27.911052Z","signed_message":"canonical_sha256_bytes"},"source_id":"1906.00179","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:58cff4e9d4d7680e6981a75ada6f75efcb640f1344f65bce975b90f6c2192b83","sha256:bec5097784fb302c5621a8a5de000cb52e0c9049cc2c4752df28ddda17a754b2"],"state_sha256":"5b4ea2e010b14e2b1407b1d209a6dc95b721a86d00a9fec88ac515be02849841"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"t3HOcEpwL1yo2ont0mYS6M/RbNsdojRxf//vLGzH6qVJ9BMmFt0i17ZcBq+o9AVQDFg+uKsyyOiXrDXnXxAMDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T02:06:40.497384Z","bundle_sha256":"21c343392ae802923a7609264a33da41ac2a6e0d36053ede95a4c758eaf1c521"}}