{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:F2SJYEAHYLNGBFINATWXY6QTTY","short_pith_number":"pith:F2SJYEAH","canonical_record":{"source":{"id":"1606.07337","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LO","submitted_at":"2016-06-23T14:57:27Z","cross_cats_sorted":[],"title_canon_sha256":"72c0016d4bc85f4adb3ca896a01d6a8614076a5834efd8f113e9a3b862dff13d","abstract_canon_sha256":"532fc046a9ceece8f0d5f1b26d27b94476c7dec056291a0e2816d70dac40bd8e"},"schema_version":"1.0"},"canonical_sha256":"2ea49c1007c2da60950d04ed7c7a139e3df2ea32d46a299da366eba29008706c","source":{"kind":"arxiv","id":"1606.07337","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1606.07337","created_at":"2026-05-18T01:11:58Z"},{"alias_kind":"arxiv_version","alias_value":"1606.07337v1","created_at":"2026-05-18T01:11:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1606.07337","created_at":"2026-05-18T01:11:58Z"},{"alias_kind":"pith_short_12","alias_value":"F2SJYEAHYLNG","created_at":"2026-05-18T12:30:15Z"},{"alias_kind":"pith_short_16","alias_value":"F2SJYEAHYLNGBFIN","created_at":"2026-05-18T12:30:15Z"},{"alias_kind":"pith_short_8","alias_value":"F2SJYEAH","created_at":"2026-05-18T12:30:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:F2SJYEAHYLNGBFINATWXY6QTTY","target":"record","payload":{"canonical_record":{"source":{"id":"1606.07337","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LO","submitted_at":"2016-06-23T14:57:27Z","cross_cats_sorted":[],"title_canon_sha256":"72c0016d4bc85f4adb3ca896a01d6a8614076a5834efd8f113e9a3b862dff13d","abstract_canon_sha256":"532fc046a9ceece8f0d5f1b26d27b94476c7dec056291a0e2816d70dac40bd8e"},"schema_version":"1.0"},"canonical_sha256":"2ea49c1007c2da60950d04ed7c7a139e3df2ea32d46a299da366eba29008706c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:11:58.244285Z","signature_b64":"b5FE6Fs7BRf4cduhmNZQjsC1fFip+GSTKBNfHmpvFuHNyCcuLLmvtZG0F5/v+26A13RU3o1OiCY+Tbbd5wfJCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2ea49c1007c2da60950d04ed7c7a139e3df2ea32d46a299da366eba29008706c","last_reissued_at":"2026-05-18T01:11:58.243886Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:11:58.243886Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1606.07337","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":"2026-05-18T01:11:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IBglpYbqEBOY11gI92IKfpdqmLj0T0GI+nR2tRsZJE3rZC5/fUbTQVEO97W/mg7WMg9r87m6xiFL3KsWCf8mBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-22T04:31:46.864183Z"},"content_sha256":"b118e747b158f72d2cf2592e79974bd8f69d2740cffe16e26baf21461e42913a","schema_version":"1.0","event_id":"sha256:b118e747b158f72d2cf2592e79974bd8f69d2740cffe16e26baf21461e42913a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:F2SJYEAHYLNGBFINATWXY6QTTY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Conjunctive Query Answering via a Fragment of Set Theory (Extended Version)","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.LO","authors_text":"Daniele Francesco Santamaria, Domenico Cantone, Marianna Nicolosi-Asmundo","submitted_at":"2016-06-23T14:57:27Z","abstract_excerpt":"We address the problem of Conjunctive Query Answering (CQA) for the description logic $\\dlssx$ ($\\shdlssx$, for short) which extends the logic $\\dlss$ with Boolean operations on concrete roles and with the product of concepts.\n  The result is obtained by formalizing $\\shdlssx$-knowledge bases and $\\shdlssx$-conjunctive queries in terms of formulae of the four-level set-theoretic fragment $\\flqsr$, which admits a restricted form of quantification on variables of the first three levels and on pair terms. We solve the CQA problem for $\\shdlssx$ through a decision procedure for the satisfiability "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1606.07337","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":"2026-05-18T01:11:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JWvEcxkD/9Ft2eMc/GNtr4qCXKAdo3RCW/XtoZVMD65Rl3NKB7F3zUnMOvDC5uWAHjGDzjVsajkdGcULaCxtDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-22T04:31:46.864536Z"},"content_sha256":"24783ab0bb0beb9a44b063959a927f5c4f5016abce3260e3a5bcaa22a4e5823f","schema_version":"1.0","event_id":"sha256:24783ab0bb0beb9a44b063959a927f5c4f5016abce3260e3a5bcaa22a4e5823f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/F2SJYEAHYLNGBFINATWXY6QTTY/bundle.json","state_url":"https://pith.science/pith/F2SJYEAHYLNGBFINATWXY6QTTY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/F2SJYEAHYLNGBFINATWXY6QTTY/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":"2026-06-22T04:31:46Z","links":{"resolver":"https://pith.science/pith/F2SJYEAHYLNGBFINATWXY6QTTY","bundle":"https://pith.science/pith/F2SJYEAHYLNGBFINATWXY6QTTY/bundle.json","state":"https://pith.science/pith/F2SJYEAHYLNGBFINATWXY6QTTY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/F2SJYEAHYLNGBFINATWXY6QTTY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:F2SJYEAHYLNGBFINATWXY6QTTY","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":"532fc046a9ceece8f0d5f1b26d27b94476c7dec056291a0e2816d70dac40bd8e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LO","submitted_at":"2016-06-23T14:57:27Z","title_canon_sha256":"72c0016d4bc85f4adb3ca896a01d6a8614076a5834efd8f113e9a3b862dff13d"},"schema_version":"1.0","source":{"id":"1606.07337","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1606.07337","created_at":"2026-05-18T01:11:58Z"},{"alias_kind":"arxiv_version","alias_value":"1606.07337v1","created_at":"2026-05-18T01:11:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1606.07337","created_at":"2026-05-18T01:11:58Z"},{"alias_kind":"pith_short_12","alias_value":"F2SJYEAHYLNG","created_at":"2026-05-18T12:30:15Z"},{"alias_kind":"pith_short_16","alias_value":"F2SJYEAHYLNGBFIN","created_at":"2026-05-18T12:30:15Z"},{"alias_kind":"pith_short_8","alias_value":"F2SJYEAH","created_at":"2026-05-18T12:30:15Z"}],"graph_snapshots":[{"event_id":"sha256:24783ab0bb0beb9a44b063959a927f5c4f5016abce3260e3a5bcaa22a4e5823f","target":"graph","created_at":"2026-05-18T01:11:58Z","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 address the problem of Conjunctive Query Answering (CQA) for the description logic $\\dlssx$ ($\\shdlssx$, for short) which extends the logic $\\dlss$ with Boolean operations on concrete roles and with the product of concepts.\n  The result is obtained by formalizing $\\shdlssx$-knowledge bases and $\\shdlssx$-conjunctive queries in terms of formulae of the four-level set-theoretic fragment $\\flqsr$, which admits a restricted form of quantification on variables of the first three levels and on pair terms. We solve the CQA problem for $\\shdlssx$ through a decision procedure for the satisfiability ","authors_text":"Daniele Francesco Santamaria, Domenico Cantone, Marianna Nicolosi-Asmundo","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LO","submitted_at":"2016-06-23T14:57:27Z","title":"Conjunctive Query Answering via a Fragment of Set Theory (Extended Version)"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1606.07337","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:b118e747b158f72d2cf2592e79974bd8f69d2740cffe16e26baf21461e42913a","target":"record","created_at":"2026-05-18T01:11:58Z","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":"532fc046a9ceece8f0d5f1b26d27b94476c7dec056291a0e2816d70dac40bd8e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LO","submitted_at":"2016-06-23T14:57:27Z","title_canon_sha256":"72c0016d4bc85f4adb3ca896a01d6a8614076a5834efd8f113e9a3b862dff13d"},"schema_version":"1.0","source":{"id":"1606.07337","kind":"arxiv","version":1}},"canonical_sha256":"2ea49c1007c2da60950d04ed7c7a139e3df2ea32d46a299da366eba29008706c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2ea49c1007c2da60950d04ed7c7a139e3df2ea32d46a299da366eba29008706c","first_computed_at":"2026-05-18T01:11:58.243886Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:11:58.243886Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"b5FE6Fs7BRf4cduhmNZQjsC1fFip+GSTKBNfHmpvFuHNyCcuLLmvtZG0F5/v+26A13RU3o1OiCY+Tbbd5wfJCw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:11:58.244285Z","signed_message":"canonical_sha256_bytes"},"source_id":"1606.07337","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b118e747b158f72d2cf2592e79974bd8f69d2740cffe16e26baf21461e42913a","sha256:24783ab0bb0beb9a44b063959a927f5c4f5016abce3260e3a5bcaa22a4e5823f"],"state_sha256":"1cac514d4680663b01ee1c0f5e16f7250773c92cc10a91ad5216a2dc2d1873d7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LXKBseIiJtaG0cRVjiQ5Kw7ndDLAQ5PWvWwVPNOtycdCN+k0k0MOCQRMqcthUbOh/VaUltOgiriiFs+34lcGBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-22T04:31:46.866441Z","bundle_sha256":"1e3a658df6c44a187efbf3f1b04793f71b2f5e1c4faefcbcd5844c413fc3ebd0"}}