{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:MB6WPQGFVW2HPRN3BT5KZGQRUS","short_pith_number":"pith:MB6WPQGF","canonical_record":{"source":{"id":"1903.06195","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CC","submitted_at":"2019-03-14T18:06:05Z","cross_cats_sorted":["cs.FL"],"title_canon_sha256":"22163e42acb6555a87101c53b9d77119fe1cb0596ac26aa0fb5ae6145b6705d9","abstract_canon_sha256":"c5341eb535a6a3eb21f095a588fd138573c1ba8dd48ff1fd5761e44cf1160086"},"schema_version":"1.0"},"canonical_sha256":"607d67c0c5adb477c5bb0cfaac9a11a4876b9d7bb6fa6cc8f950c0245e40440f","source":{"kind":"arxiv","id":"1903.06195","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.06195","created_at":"2026-05-17T23:51:13Z"},{"alias_kind":"arxiv_version","alias_value":"1903.06195v1","created_at":"2026-05-17T23:51:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.06195","created_at":"2026-05-17T23:51:13Z"},{"alias_kind":"pith_short_12","alias_value":"MB6WPQGFVW2H","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_16","alias_value":"MB6WPQGFVW2HPRN3","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_8","alias_value":"MB6WPQGF","created_at":"2026-05-18T12:33:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:MB6WPQGFVW2HPRN3BT5KZGQRUS","target":"record","payload":{"canonical_record":{"source":{"id":"1903.06195","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CC","submitted_at":"2019-03-14T18:06:05Z","cross_cats_sorted":["cs.FL"],"title_canon_sha256":"22163e42acb6555a87101c53b9d77119fe1cb0596ac26aa0fb5ae6145b6705d9","abstract_canon_sha256":"c5341eb535a6a3eb21f095a588fd138573c1ba8dd48ff1fd5761e44cf1160086"},"schema_version":"1.0"},"canonical_sha256":"607d67c0c5adb477c5bb0cfaac9a11a4876b9d7bb6fa6cc8f950c0245e40440f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:51:13.587784Z","signature_b64":"V3e+qX3qtd8oOODMg7TgQiLHD70YZgYynL4KpndsDIJtcBR5T8+/hKK0RD0eNjm0Oj9PvmcwFDzQrRZvInXBBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"607d67c0c5adb477c5bb0cfaac9a11a4876b9d7bb6fa6cc8f950c0245e40440f","last_reissued_at":"2026-05-17T23:51:13.587225Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:51:13.587225Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1903.06195","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":"2026-05-17T23:51:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OcKuqvEqfK8kXnR1YRCRbf9hHtkSrsokrtR5GusaFJa2mUwp8FxgX6s58UmLuTe9DM3Q6NOll9A5KaWW6j0oDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-02T17:20:09.681818Z"},"content_sha256":"2313f21288478c391f9c271a230a8ffad54923430e4035cf85e217f9b56b1cc6","schema_version":"1.0","event_id":"sha256:2313f21288478c391f9c271a230a8ffad54923430e4035cf85e217f9b56b1cc6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:MB6WPQGFVW2HPRN3BT5KZGQRUS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"LIKE Patterns and Complexity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.FL"],"primary_cat":"cs.CC","authors_text":"Holger Petersen","submitted_at":"2019-03-14T18:06:05Z","abstract_excerpt":"We investigate the expressive power and complexity questions for the LIKE operator in SQL."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.06195","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":"2026-05-17T23:51:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3ZD2sAvvc3kcYWg6VO/KY3Jb7hwdpq2aOXe3ShfK0afxsKfs7a0JaBu6DbCW6/3wOsxRLXt5Wxxo3C6hl4y8BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-02T17:20:09.682162Z"},"content_sha256":"584d2b1a3251c2c31b7826a0a3462d994121caead5467166b5f763c4cce0cf2a","schema_version":"1.0","event_id":"sha256:584d2b1a3251c2c31b7826a0a3462d994121caead5467166b5f763c4cce0cf2a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MB6WPQGFVW2HPRN3BT5KZGQRUS/bundle.json","state_url":"https://pith.science/pith/MB6WPQGFVW2HPRN3BT5KZGQRUS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MB6WPQGFVW2HPRN3BT5KZGQRUS/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":"2026-07-02T17:20:09Z","links":{"resolver":"https://pith.science/pith/MB6WPQGFVW2HPRN3BT5KZGQRUS","bundle":"https://pith.science/pith/MB6WPQGFVW2HPRN3BT5KZGQRUS/bundle.json","state":"https://pith.science/pith/MB6WPQGFVW2HPRN3BT5KZGQRUS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MB6WPQGFVW2HPRN3BT5KZGQRUS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:MB6WPQGFVW2HPRN3BT5KZGQRUS","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":"c5341eb535a6a3eb21f095a588fd138573c1ba8dd48ff1fd5761e44cf1160086","cross_cats_sorted":["cs.FL"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CC","submitted_at":"2019-03-14T18:06:05Z","title_canon_sha256":"22163e42acb6555a87101c53b9d77119fe1cb0596ac26aa0fb5ae6145b6705d9"},"schema_version":"1.0","source":{"id":"1903.06195","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.06195","created_at":"2026-05-17T23:51:13Z"},{"alias_kind":"arxiv_version","alias_value":"1903.06195v1","created_at":"2026-05-17T23:51:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.06195","created_at":"2026-05-17T23:51:13Z"},{"alias_kind":"pith_short_12","alias_value":"MB6WPQGFVW2H","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_16","alias_value":"MB6WPQGFVW2HPRN3","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_8","alias_value":"MB6WPQGF","created_at":"2026-05-18T12:33:21Z"}],"graph_snapshots":[{"event_id":"sha256:584d2b1a3251c2c31b7826a0a3462d994121caead5467166b5f763c4cce0cf2a","target":"graph","created_at":"2026-05-17T23:51:13Z","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 investigate the expressive power and complexity questions for the LIKE operator in SQL.","authors_text":"Holger Petersen","cross_cats":["cs.FL"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CC","submitted_at":"2019-03-14T18:06:05Z","title":"LIKE Patterns and Complexity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.06195","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":"sha256:2313f21288478c391f9c271a230a8ffad54923430e4035cf85e217f9b56b1cc6","target":"record","created_at":"2026-05-17T23:51:13Z","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":"c5341eb535a6a3eb21f095a588fd138573c1ba8dd48ff1fd5761e44cf1160086","cross_cats_sorted":["cs.FL"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CC","submitted_at":"2019-03-14T18:06:05Z","title_canon_sha256":"22163e42acb6555a87101c53b9d77119fe1cb0596ac26aa0fb5ae6145b6705d9"},"schema_version":"1.0","source":{"id":"1903.06195","kind":"arxiv","version":1}},"canonical_sha256":"607d67c0c5adb477c5bb0cfaac9a11a4876b9d7bb6fa6cc8f950c0245e40440f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"607d67c0c5adb477c5bb0cfaac9a11a4876b9d7bb6fa6cc8f950c0245e40440f","first_computed_at":"2026-05-17T23:51:13.587225Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:51:13.587225Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"V3e+qX3qtd8oOODMg7TgQiLHD70YZgYynL4KpndsDIJtcBR5T8+/hKK0RD0eNjm0Oj9PvmcwFDzQrRZvInXBBw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:51:13.587784Z","signed_message":"canonical_sha256_bytes"},"source_id":"1903.06195","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2313f21288478c391f9c271a230a8ffad54923430e4035cf85e217f9b56b1cc6","sha256:584d2b1a3251c2c31b7826a0a3462d994121caead5467166b5f763c4cce0cf2a"],"state_sha256":"6816c3bf8c04a3f1af3541b0475ef73d39f18ef67b241a53c174da2a1182b748"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Cal6we/nrBB/Thxq81y+EGxlbbLK/OhASiBMGve5+y4EyfRYIUS4YQatOZfTCuzTAJZwI2bSr1V+2KQ3dS8DBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-02T17:20:09.684373Z","bundle_sha256":"c36fbe1593c9b996742d63876a04d474ae9c5855ae38edf7fec63608dd82aeaf"}}