{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:ZEANKFFU2KEJGSMWWQ6FQY5GQY","short_pith_number":"pith:ZEANKFFU","canonical_record":{"source":{"id":"1904.13164","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DB","submitted_at":"2019-04-30T11:29:00Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"571f1e37b49af100a955128a79bec2e92b4caa00bd1e67d51754256e44f54d7e","abstract_canon_sha256":"bd4d391dd1556bfb09a07566081a72ed9a3b1f6840968624b2cb70ab4e429a84"},"schema_version":"1.0"},"canonical_sha256":"c900d514b4d288934996b43c5863a6861c07804761aaad010cfacb30cb573bac","source":{"kind":"arxiv","id":"1904.13164","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1904.13164","created_at":"2026-05-17T23:47:22Z"},{"alias_kind":"arxiv_version","alias_value":"1904.13164v1","created_at":"2026-05-17T23:47:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.13164","created_at":"2026-05-17T23:47:22Z"},{"alias_kind":"pith_short_12","alias_value":"ZEANKFFU2KEJ","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_16","alias_value":"ZEANKFFU2KEJGSMW","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_8","alias_value":"ZEANKFFU","created_at":"2026-05-18T12:33:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:ZEANKFFU2KEJGSMWWQ6FQY5GQY","target":"record","payload":{"canonical_record":{"source":{"id":"1904.13164","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DB","submitted_at":"2019-04-30T11:29:00Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"571f1e37b49af100a955128a79bec2e92b4caa00bd1e67d51754256e44f54d7e","abstract_canon_sha256":"bd4d391dd1556bfb09a07566081a72ed9a3b1f6840968624b2cb70ab4e429a84"},"schema_version":"1.0"},"canonical_sha256":"c900d514b4d288934996b43c5863a6861c07804761aaad010cfacb30cb573bac","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:47:22.027625Z","signature_b64":"MyzR3+a/sWswCFTnmqdUcX9FVn+a29CXu0b8HGdUKKNR10x3UPqs/ZgXW1/mjSuwu+4Y2ygZyJfz35OjE4w9BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c900d514b4d288934996b43c5863a6861c07804761aaad010cfacb30cb573bac","last_reissued_at":"2026-05-17T23:47:22.027083Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:47:22.027083Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1904.13164","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":"2026-05-17T23:47:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hpNMvHLHpJObCWCultk8jvaBfDXAcy9/EDKQYFftLfoiPqFN0fdwajHL3QS/v0G9QJc+5LYJ6tIlK+GeWLwqBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T20:11:04.132922Z"},"content_sha256":"74fcfde1ba569635c96f9984d890a3e62d8fbc310f3d0a131abdd4c03fdadabc","schema_version":"1.0","event_id":"sha256:74fcfde1ba569635c96f9984d890a3e62d8fbc310f3d0a131abdd4c03fdadabc"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:ZEANKFFU2KEJGSMWWQ6FQY5GQY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Learning Restricted Regular Expressions with Interleaving","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.AI"],"primary_cat":"cs.DB","authors_text":"Chunmei Dong, Haiming Chen, Yeting Li","submitted_at":"2019-04-30T11:29:00Z","abstract_excerpt":"The advantages for the presence of an XML schema for XML documents are numerous. However, many XML documents in practice are not accompanied by a schema or by a valid schema. Relax NG is a popular and powerful schema language, which supports the unconstrained interleaving operator. Focusing on the inference of Relax NG, we propose a new subclass of regular expressions with interleaving and design a polynomial inference algorithm. Then we conducted a series of experiments based on large-scale real data and on three XML data corpora, and experimental results show that our subclass has a better p"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.13164","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":"2026-05-17T23:47:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0O4OSaOtmUEDTET6tnYU4HkrxMCx24To4spC5qTe/7gvHdR00aIwqVENjWtEQb7DBvDfzrb0liW2qfxk30ToAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T20:11:04.133641Z"},"content_sha256":"c6363debce20f3b569ab84a315afe6c0940eaec553df90dbc81b9d757bff3917","schema_version":"1.0","event_id":"sha256:c6363debce20f3b569ab84a315afe6c0940eaec553df90dbc81b9d757bff3917"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZEANKFFU2KEJGSMWWQ6FQY5GQY/bundle.json","state_url":"https://pith.science/pith/ZEANKFFU2KEJGSMWWQ6FQY5GQY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZEANKFFU2KEJGSMWWQ6FQY5GQY/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":"2026-06-07T20:11:04Z","links":{"resolver":"https://pith.science/pith/ZEANKFFU2KEJGSMWWQ6FQY5GQY","bundle":"https://pith.science/pith/ZEANKFFU2KEJGSMWWQ6FQY5GQY/bundle.json","state":"https://pith.science/pith/ZEANKFFU2KEJGSMWWQ6FQY5GQY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZEANKFFU2KEJGSMWWQ6FQY5GQY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:ZEANKFFU2KEJGSMWWQ6FQY5GQY","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":"bd4d391dd1556bfb09a07566081a72ed9a3b1f6840968624b2cb70ab4e429a84","cross_cats_sorted":["cs.AI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DB","submitted_at":"2019-04-30T11:29:00Z","title_canon_sha256":"571f1e37b49af100a955128a79bec2e92b4caa00bd1e67d51754256e44f54d7e"},"schema_version":"1.0","source":{"id":"1904.13164","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1904.13164","created_at":"2026-05-17T23:47:22Z"},{"alias_kind":"arxiv_version","alias_value":"1904.13164v1","created_at":"2026-05-17T23:47:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.13164","created_at":"2026-05-17T23:47:22Z"},{"alias_kind":"pith_short_12","alias_value":"ZEANKFFU2KEJ","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_16","alias_value":"ZEANKFFU2KEJGSMW","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_8","alias_value":"ZEANKFFU","created_at":"2026-05-18T12:33:33Z"}],"graph_snapshots":[{"event_id":"sha256:c6363debce20f3b569ab84a315afe6c0940eaec553df90dbc81b9d757bff3917","target":"graph","created_at":"2026-05-17T23:47:22Z","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":"The advantages for the presence of an XML schema for XML documents are numerous. However, many XML documents in practice are not accompanied by a schema or by a valid schema. Relax NG is a popular and powerful schema language, which supports the unconstrained interleaving operator. Focusing on the inference of Relax NG, we propose a new subclass of regular expressions with interleaving and design a polynomial inference algorithm. Then we conducted a series of experiments based on large-scale real data and on three XML data corpora, and experimental results show that our subclass has a better p","authors_text":"Chunmei Dong, Haiming Chen, Yeting Li","cross_cats":["cs.AI"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DB","submitted_at":"2019-04-30T11:29:00Z","title":"Learning Restricted Regular Expressions with Interleaving"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.13164","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":"sha256:74fcfde1ba569635c96f9984d890a3e62d8fbc310f3d0a131abdd4c03fdadabc","target":"record","created_at":"2026-05-17T23:47:22Z","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":"bd4d391dd1556bfb09a07566081a72ed9a3b1f6840968624b2cb70ab4e429a84","cross_cats_sorted":["cs.AI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DB","submitted_at":"2019-04-30T11:29:00Z","title_canon_sha256":"571f1e37b49af100a955128a79bec2e92b4caa00bd1e67d51754256e44f54d7e"},"schema_version":"1.0","source":{"id":"1904.13164","kind":"arxiv","version":1}},"canonical_sha256":"c900d514b4d288934996b43c5863a6861c07804761aaad010cfacb30cb573bac","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c900d514b4d288934996b43c5863a6861c07804761aaad010cfacb30cb573bac","first_computed_at":"2026-05-17T23:47:22.027083Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:47:22.027083Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"MyzR3+a/sWswCFTnmqdUcX9FVn+a29CXu0b8HGdUKKNR10x3UPqs/ZgXW1/mjSuwu+4Y2ygZyJfz35OjE4w9BA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:47:22.027625Z","signed_message":"canonical_sha256_bytes"},"source_id":"1904.13164","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:74fcfde1ba569635c96f9984d890a3e62d8fbc310f3d0a131abdd4c03fdadabc","sha256:c6363debce20f3b569ab84a315afe6c0940eaec553df90dbc81b9d757bff3917"],"state_sha256":"c07878431998c9e7a12f81c94f90b3a2da9a4c8efa94216a8889efe4f1dfeee8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9anU/DBc7eUaygTsyRlrIH5ybUfnQFiixDl5Q7jOg/8tifEj2Bg6fLepycMLx1ZrfciTI3/nmMtIuWV2RKIrCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T20:11:04.137440Z","bundle_sha256":"feea54501575230d9a647711cc661618aa0642b725a0e5bdf7eea1cafc3d89a9"}}