{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:QWUUF4VFT33FI4TLR4T3U5UCWL","short_pith_number":"pith:QWUUF4VF","canonical_record":{"source":{"id":"1107.0026","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2011-06-30T20:33:50Z","cross_cats_sorted":[],"title_canon_sha256":"41412567ace664131c7dcc5ac097e979ee34ed78a4adcd29cd7e738ad9ff8973","abstract_canon_sha256":"5e0321bccf15daa96c393eb2e7a2edb6bdbb6d4a02e794e26d4cf44b93a89575"},"schema_version":"1.0"},"canonical_sha256":"85a942f2a59ef654726b8f27ba7682b2faab434e8dde849c05372acb64d64c3a","source":{"kind":"arxiv","id":"1107.0026","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1107.0026","created_at":"2026-05-18T04:19:02Z"},{"alias_kind":"arxiv_version","alias_value":"1107.0026v1","created_at":"2026-05-18T04:19:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1107.0026","created_at":"2026-05-18T04:19:02Z"},{"alias_kind":"pith_short_12","alias_value":"QWUUF4VFT33F","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_16","alias_value":"QWUUF4VFT33FI4TL","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_8","alias_value":"QWUUF4VF","created_at":"2026-05-18T12:26:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:QWUUF4VFT33FI4TLR4T3U5UCWL","target":"record","payload":{"canonical_record":{"source":{"id":"1107.0026","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2011-06-30T20:33:50Z","cross_cats_sorted":[],"title_canon_sha256":"41412567ace664131c7dcc5ac097e979ee34ed78a4adcd29cd7e738ad9ff8973","abstract_canon_sha256":"5e0321bccf15daa96c393eb2e7a2edb6bdbb6d4a02e794e26d4cf44b93a89575"},"schema_version":"1.0"},"canonical_sha256":"85a942f2a59ef654726b8f27ba7682b2faab434e8dde849c05372acb64d64c3a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:19:02.956906Z","signature_b64":"jSjnO+58DYSDTlCOLdR7TwuNGwCAJFUVmsX09KWelXYTWK23qznehWbpGChA0qGdvkV+bON10SzERKHKSSxVCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"85a942f2a59ef654726b8f27ba7682b2faab434e8dde849c05372acb64d64c3a","last_reissued_at":"2026-05-18T04:19:02.956163Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:19:02.956163Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1107.0026","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":"2026-05-18T04:19:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MSXEQjaf74Vudz95PwLUoJgO8Mm7FX/IhMFkT+7ZhaxDrS4W4BxHh4fFYrX/eUBlxN7qqXslYLnREXF0EBtICA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-24T21:05:40.852250Z"},"content_sha256":"8629d6a073dd84bdc0c71b374212e54ad8556c9f0701884baecb18c84e823998","schema_version":"1.0","event_id":"sha256:8629d6a073dd84bdc0c71b374212e54ad8556c9f0701884baecb18c84e823998"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:QWUUF4VFT33FI4TLR4T3U5UCWL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"IDL-Expressions: A Formalism for Representing and Parsing Finite Languages in Natural Language Processing","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.AI","authors_text":"G. Satta, M. J. Nederhof","submitted_at":"2011-06-30T20:33:50Z","abstract_excerpt":"We  propose  a  formalism  for  representation  of  finite  languages, referred to  as the class of IDL-expressions,  which combines concepts that were  only considered in  isolation in existing  formalisms.  The suggested  applications  are  in  natural  language  processing,  more specifically  in surface  natural language  generation and  in machine translation, where a sentence is  obtained by first generating a large set of candidate sentences, represented  in a compact way, and then by filtering  such a  set  through  a parser.   We  study several  formal properties of IDL-expressions an"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1107.0026","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":"2026-05-18T04:19:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UTWJzMtU/Fv0Sh62RogmjsqselRhsKsBg7zfoIdcPLjjHQwhwV36WJeMwSW1IYJSQGLrLqICxfvQ+umsZtz0BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-24T21:05:40.852621Z"},"content_sha256":"3ba0722cdac2d0e818f364d710bee3e93690b1601090261d6b48c73ad9c87e1e","schema_version":"1.0","event_id":"sha256:3ba0722cdac2d0e818f364d710bee3e93690b1601090261d6b48c73ad9c87e1e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QWUUF4VFT33FI4TLR4T3U5UCWL/bundle.json","state_url":"https://pith.science/pith/QWUUF4VFT33FI4TLR4T3U5UCWL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QWUUF4VFT33FI4TLR4T3U5UCWL/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":"2026-06-24T21:05:40Z","links":{"resolver":"https://pith.science/pith/QWUUF4VFT33FI4TLR4T3U5UCWL","bundle":"https://pith.science/pith/QWUUF4VFT33FI4TLR4T3U5UCWL/bundle.json","state":"https://pith.science/pith/QWUUF4VFT33FI4TLR4T3U5UCWL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QWUUF4VFT33FI4TLR4T3U5UCWL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:QWUUF4VFT33FI4TLR4T3U5UCWL","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":"5e0321bccf15daa96c393eb2e7a2edb6bdbb6d4a02e794e26d4cf44b93a89575","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2011-06-30T20:33:50Z","title_canon_sha256":"41412567ace664131c7dcc5ac097e979ee34ed78a4adcd29cd7e738ad9ff8973"},"schema_version":"1.0","source":{"id":"1107.0026","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1107.0026","created_at":"2026-05-18T04:19:02Z"},{"alias_kind":"arxiv_version","alias_value":"1107.0026v1","created_at":"2026-05-18T04:19:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1107.0026","created_at":"2026-05-18T04:19:02Z"},{"alias_kind":"pith_short_12","alias_value":"QWUUF4VFT33F","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_16","alias_value":"QWUUF4VFT33FI4TL","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_8","alias_value":"QWUUF4VF","created_at":"2026-05-18T12:26:39Z"}],"graph_snapshots":[{"event_id":"sha256:3ba0722cdac2d0e818f364d710bee3e93690b1601090261d6b48c73ad9c87e1e","target":"graph","created_at":"2026-05-18T04:19:02Z","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  propose  a  formalism  for  representation  of  finite  languages, referred to  as the class of IDL-expressions,  which combines concepts that were  only considered in  isolation in existing  formalisms.  The suggested  applications  are  in  natural  language  processing,  more specifically  in surface  natural language  generation and  in machine translation, where a sentence is  obtained by first generating a large set of candidate sentences, represented  in a compact way, and then by filtering  such a  set  through  a parser.   We  study several  formal properties of IDL-expressions an","authors_text":"G. Satta, M. J. Nederhof","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2011-06-30T20:33:50Z","title":"IDL-Expressions: A Formalism for Representing and Parsing Finite Languages in Natural Language Processing"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1107.0026","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":"sha256:8629d6a073dd84bdc0c71b374212e54ad8556c9f0701884baecb18c84e823998","target":"record","created_at":"2026-05-18T04:19:02Z","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":"5e0321bccf15daa96c393eb2e7a2edb6bdbb6d4a02e794e26d4cf44b93a89575","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2011-06-30T20:33:50Z","title_canon_sha256":"41412567ace664131c7dcc5ac097e979ee34ed78a4adcd29cd7e738ad9ff8973"},"schema_version":"1.0","source":{"id":"1107.0026","kind":"arxiv","version":1}},"canonical_sha256":"85a942f2a59ef654726b8f27ba7682b2faab434e8dde849c05372acb64d64c3a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"85a942f2a59ef654726b8f27ba7682b2faab434e8dde849c05372acb64d64c3a","first_computed_at":"2026-05-18T04:19:02.956163Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:19:02.956163Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jSjnO+58DYSDTlCOLdR7TwuNGwCAJFUVmsX09KWelXYTWK23qznehWbpGChA0qGdvkV+bON10SzERKHKSSxVCg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:19:02.956906Z","signed_message":"canonical_sha256_bytes"},"source_id":"1107.0026","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8629d6a073dd84bdc0c71b374212e54ad8556c9f0701884baecb18c84e823998","sha256:3ba0722cdac2d0e818f364d710bee3e93690b1601090261d6b48c73ad9c87e1e"],"state_sha256":"8e38255b653217accd6d61427855ef46044d6dbaaf08e3710c6ba155acb7a65b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"62NXG4tCZqf9taiyHfpP+0A+XFSczlkVwU6vt5hifGRjdBV03r71ox3whbv7yPvkf95TGAQ0Q8Rh6y1EtmijBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-24T21:05:40.854566Z","bundle_sha256":"4052de3084d1b0e4edcd0e41d01e02d9a69c8a02603d3ff57cf4b3a0f15a9cb1"}}