{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:3XQAINJTHR2DSITDMUIZNLFN2Y","short_pith_number":"pith:3XQAINJT","canonical_record":{"source":{"id":"1301.5197","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.FL","submitted_at":"2013-01-22T14:43:15Z","cross_cats_sorted":["cs.LO"],"title_canon_sha256":"6bb1404c6ee265dfb5aa6d3ad775cbc3d95894b1488ed80c84bf337aa6017f98","abstract_canon_sha256":"fa40cf5ecc70c2ca30648bdc9f37d2161f2fae5c64979f5e4b45d9119a9d0df2"},"schema_version":"1.0"},"canonical_sha256":"dde00435333c74392263651196acadd626784ce095fcac3ff0203ca6778bf854","source":{"kind":"arxiv","id":"1301.5197","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.5197","created_at":"2026-05-18T03:27:03Z"},{"alias_kind":"arxiv_version","alias_value":"1301.5197v2","created_at":"2026-05-18T03:27:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.5197","created_at":"2026-05-18T03:27:03Z"},{"alias_kind":"pith_short_12","alias_value":"3XQAINJTHR2D","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_16","alias_value":"3XQAINJTHR2DSITD","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_8","alias_value":"3XQAINJT","created_at":"2026-05-18T12:27:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:3XQAINJTHR2DSITDMUIZNLFN2Y","target":"record","payload":{"canonical_record":{"source":{"id":"1301.5197","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.FL","submitted_at":"2013-01-22T14:43:15Z","cross_cats_sorted":["cs.LO"],"title_canon_sha256":"6bb1404c6ee265dfb5aa6d3ad775cbc3d95894b1488ed80c84bf337aa6017f98","abstract_canon_sha256":"fa40cf5ecc70c2ca30648bdc9f37d2161f2fae5c64979f5e4b45d9119a9d0df2"},"schema_version":"1.0"},"canonical_sha256":"dde00435333c74392263651196acadd626784ce095fcac3ff0203ca6778bf854","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:27:03.080605Z","signature_b64":"O09DARwQKJRowG3EPTPRWbccwCS9Jbn1SDD8zzkcdI4joTRvEy07H5An8m6uRvj5mJRjtCJfk0Y/U9xtWTVFDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dde00435333c74392263651196acadd626784ce095fcac3ff0203ca6778bf854","last_reissued_at":"2026-05-18T03:27:03.080120Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:27:03.080120Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1301.5197","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:27:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iljA2RkvbyNU1cF4Iq456eo8xxbnl8lk49LfQuKXv7Kl0qYMLQoYAfqo4s2d7r3Rt1dkfwthv65PdY/tdTflAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T02:07:20.264509Z"},"content_sha256":"742e92dfbfc9266b19cf6273c99c534fcb34723bac94bd30889e380be1c049d3","schema_version":"1.0","event_id":"sha256:742e92dfbfc9266b19cf6273c99c534fcb34723bac94bd30889e380be1c049d3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:3XQAINJTHR2DSITDMUIZNLFN2Y","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"From Two-Way to One-Way Finite State Transducers","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.LO"],"primary_cat":"cs.FL","authors_text":"Emmanuel Filiot, Fr\\'ed\\'eric Servais, Olivier Gauwin, Pierre-Alain Reynier","submitted_at":"2013-01-22T14:43:15Z","abstract_excerpt":"Any two-way finite state automaton is equivalent to some one-way finite state automaton. This well-known result, shown by Rabin and Scott and independently by Shepherdson, states that two-way finite state automata (even non-deterministic) characterize the class of regular languages. It is also known that this result does not extend to finite string transductions: (deterministic) two-way finite state transducers strictly extend the expressive power of (functional) one-way transducers. In particular deterministic two-way transducers capture exactly the class of MSO-transductions of finite string"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.5197","kind":"arxiv","version":2},"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":"2026-05-18T03:27:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/Tr0NHRu22Bx17/HFeEWCpFZEuzIxSIv+8OCuaAtYnHjWeiWqMUVvsyniPT86zkZM4xMJcSuovSvgW51gF79Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T02:07:20.264911Z"},"content_sha256":"f5347e28e2de918756f28446a2b6428eb22847deef9e9d2ecd66540968718284","schema_version":"1.0","event_id":"sha256:f5347e28e2de918756f28446a2b6428eb22847deef9e9d2ecd66540968718284"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3XQAINJTHR2DSITDMUIZNLFN2Y/bundle.json","state_url":"https://pith.science/pith/3XQAINJTHR2DSITDMUIZNLFN2Y/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3XQAINJTHR2DSITDMUIZNLFN2Y/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":"2026-05-28T02:07:20Z","links":{"resolver":"https://pith.science/pith/3XQAINJTHR2DSITDMUIZNLFN2Y","bundle":"https://pith.science/pith/3XQAINJTHR2DSITDMUIZNLFN2Y/bundle.json","state":"https://pith.science/pith/3XQAINJTHR2DSITDMUIZNLFN2Y/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3XQAINJTHR2DSITDMUIZNLFN2Y/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:3XQAINJTHR2DSITDMUIZNLFN2Y","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":"fa40cf5ecc70c2ca30648bdc9f37d2161f2fae5c64979f5e4b45d9119a9d0df2","cross_cats_sorted":["cs.LO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.FL","submitted_at":"2013-01-22T14:43:15Z","title_canon_sha256":"6bb1404c6ee265dfb5aa6d3ad775cbc3d95894b1488ed80c84bf337aa6017f98"},"schema_version":"1.0","source":{"id":"1301.5197","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.5197","created_at":"2026-05-18T03:27:03Z"},{"alias_kind":"arxiv_version","alias_value":"1301.5197v2","created_at":"2026-05-18T03:27:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.5197","created_at":"2026-05-18T03:27:03Z"},{"alias_kind":"pith_short_12","alias_value":"3XQAINJTHR2D","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_16","alias_value":"3XQAINJTHR2DSITD","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_8","alias_value":"3XQAINJT","created_at":"2026-05-18T12:27:32Z"}],"graph_snapshots":[{"event_id":"sha256:f5347e28e2de918756f28446a2b6428eb22847deef9e9d2ecd66540968718284","target":"graph","created_at":"2026-05-18T03:27:03Z","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":"Any two-way finite state automaton is equivalent to some one-way finite state automaton. This well-known result, shown by Rabin and Scott and independently by Shepherdson, states that two-way finite state automata (even non-deterministic) characterize the class of regular languages. It is also known that this result does not extend to finite string transductions: (deterministic) two-way finite state transducers strictly extend the expressive power of (functional) one-way transducers. In particular deterministic two-way transducers capture exactly the class of MSO-transductions of finite string","authors_text":"Emmanuel Filiot, Fr\\'ed\\'eric Servais, Olivier Gauwin, Pierre-Alain Reynier","cross_cats":["cs.LO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.FL","submitted_at":"2013-01-22T14:43:15Z","title":"From Two-Way to One-Way Finite State Transducers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.5197","kind":"arxiv","version":2},"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":"sha256:742e92dfbfc9266b19cf6273c99c534fcb34723bac94bd30889e380be1c049d3","target":"record","created_at":"2026-05-18T03:27:03Z","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":"fa40cf5ecc70c2ca30648bdc9f37d2161f2fae5c64979f5e4b45d9119a9d0df2","cross_cats_sorted":["cs.LO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.FL","submitted_at":"2013-01-22T14:43:15Z","title_canon_sha256":"6bb1404c6ee265dfb5aa6d3ad775cbc3d95894b1488ed80c84bf337aa6017f98"},"schema_version":"1.0","source":{"id":"1301.5197","kind":"arxiv","version":2}},"canonical_sha256":"dde00435333c74392263651196acadd626784ce095fcac3ff0203ca6778bf854","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"dde00435333c74392263651196acadd626784ce095fcac3ff0203ca6778bf854","first_computed_at":"2026-05-18T03:27:03.080120Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:27:03.080120Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"O09DARwQKJRowG3EPTPRWbccwCS9Jbn1SDD8zzkcdI4joTRvEy07H5An8m6uRvj5mJRjtCJfk0Y/U9xtWTVFDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:27:03.080605Z","signed_message":"canonical_sha256_bytes"},"source_id":"1301.5197","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:742e92dfbfc9266b19cf6273c99c534fcb34723bac94bd30889e380be1c049d3","sha256:f5347e28e2de918756f28446a2b6428eb22847deef9e9d2ecd66540968718284"],"state_sha256":"b1c1fd8dd47e4c1957ecc16dc8fcc4d568662a5b0b5805d687f516ad168accdd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pobP0dL3JYStJfdBJTJHYOH/Vgtvx0eJ/se4UbkPgNP+Kd+pSHycD80ZwMRNeuHvLUyMX30pzblKIArR+/paCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T02:07:20.267146Z","bundle_sha256":"1c8e6b5f907092c78a2ad3275bb626019317383920230847ac008b1c5db32cc1"}}