{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:63PAAHIVSUSBLNYG7USFLVLZQN","short_pith_number":"pith:63PAAHIV","canonical_record":{"source":{"id":"1208.5980","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.FL","submitted_at":"2012-08-29T18:25:03Z","cross_cats_sorted":[],"title_canon_sha256":"2a549f28215a4507d8552026b1b66e9a6e413cf3e2226828011d80c62cbda792","abstract_canon_sha256":"3ff496e55eb9479d608986c9413f29842017a434394214d3f2f8d664965f1d33"},"schema_version":"1.0"},"canonical_sha256":"f6de001d15952415b706fd2455d5798354ad0a5457f0e232bdf9b4621e64d18f","source":{"kind":"arxiv","id":"1208.5980","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1208.5980","created_at":"2026-05-18T03:46:48Z"},{"alias_kind":"arxiv_version","alias_value":"1208.5980v1","created_at":"2026-05-18T03:46:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1208.5980","created_at":"2026-05-18T03:46:48Z"},{"alias_kind":"pith_short_12","alias_value":"63PAAHIVSUSB","created_at":"2026-05-18T12:26:56Z"},{"alias_kind":"pith_short_16","alias_value":"63PAAHIVSUSBLNYG","created_at":"2026-05-18T12:26:56Z"},{"alias_kind":"pith_short_8","alias_value":"63PAAHIV","created_at":"2026-05-18T12:26:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:63PAAHIVSUSBLNYG7USFLVLZQN","target":"record","payload":{"canonical_record":{"source":{"id":"1208.5980","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.FL","submitted_at":"2012-08-29T18:25:03Z","cross_cats_sorted":[],"title_canon_sha256":"2a549f28215a4507d8552026b1b66e9a6e413cf3e2226828011d80c62cbda792","abstract_canon_sha256":"3ff496e55eb9479d608986c9413f29842017a434394214d3f2f8d664965f1d33"},"schema_version":"1.0"},"canonical_sha256":"f6de001d15952415b706fd2455d5798354ad0a5457f0e232bdf9b4621e64d18f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:46:48.197548Z","signature_b64":"8ABaK5dL7BOtcrdqWNS+qho4GdQms9zOVRD1RiKOkyjiXJPAy1sghSKYDZ+yEmNDxgyXrSwydZS/b/LrQ/pRBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f6de001d15952415b706fd2455d5798354ad0a5457f0e232bdf9b4621e64d18f","last_reissued_at":"2026-05-18T03:46:48.196777Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:46:48.196777Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1208.5980","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":"2026-05-18T03:46:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JqnqbRDg4vWESreXx97hEz+0q2Tf/QVmY9eP+JxRa5W3FLVfssDygTqhEGqWDqE9mcNRBZF7WLsOjGJ5Nrl7Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T06:14:53.258101Z"},"content_sha256":"65c34269845f36583275cbd4c9ac07d41b0a2629a0f7527d203ae7f1b7690c40","schema_version":"1.0","event_id":"sha256:65c34269845f36583275cbd4c9ac07d41b0a2629a0f7527d203ae7f1b7690c40"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:63PAAHIVSUSBLNYG7USFLVLZQN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"In the Maze of Data Languages","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.FL","authors_text":"Loris D'Antoni","submitted_at":"2012-08-29T18:25:03Z","abstract_excerpt":"In data languages the positions of strings and trees carry a label from a finite alphabet and a data value from an infinite alphabet. Extensions of automata and logics over finite alphabets have been defined to recognize data languages, both in the string and tree cases. In this paper we describe and compare the complexity and expressiveness of such models to understand which ones are better candidates as regular models."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1208.5980","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":"2026-05-18T03:46:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uo/yBOKBSxn4FSpfhnp6fY8fKaLG85Yh5z+6cM3ss6Vi3r8rySbzSvrqoHvNdQRqAlLef4RreOGEf3cQnRiVBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T06:14:53.258869Z"},"content_sha256":"b4d612469332052af9481845ca24c17b8c3b2e5498dc3a02c73ebcdab718ad72","schema_version":"1.0","event_id":"sha256:b4d612469332052af9481845ca24c17b8c3b2e5498dc3a02c73ebcdab718ad72"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/63PAAHIVSUSBLNYG7USFLVLZQN/bundle.json","state_url":"https://pith.science/pith/63PAAHIVSUSBLNYG7USFLVLZQN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/63PAAHIVSUSBLNYG7USFLVLZQN/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":"2026-08-08T06:14:53Z","links":{"resolver":"https://pith.science/pith/63PAAHIVSUSBLNYG7USFLVLZQN","bundle":"https://pith.science/pith/63PAAHIVSUSBLNYG7USFLVLZQN/bundle.json","state":"https://pith.science/pith/63PAAHIVSUSBLNYG7USFLVLZQN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/63PAAHIVSUSBLNYG7USFLVLZQN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:63PAAHIVSUSBLNYG7USFLVLZQN","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":"3ff496e55eb9479d608986c9413f29842017a434394214d3f2f8d664965f1d33","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.FL","submitted_at":"2012-08-29T18:25:03Z","title_canon_sha256":"2a549f28215a4507d8552026b1b66e9a6e413cf3e2226828011d80c62cbda792"},"schema_version":"1.0","source":{"id":"1208.5980","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1208.5980","created_at":"2026-05-18T03:46:48Z"},{"alias_kind":"arxiv_version","alias_value":"1208.5980v1","created_at":"2026-05-18T03:46:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1208.5980","created_at":"2026-05-18T03:46:48Z"},{"alias_kind":"pith_short_12","alias_value":"63PAAHIVSUSB","created_at":"2026-05-18T12:26:56Z"},{"alias_kind":"pith_short_16","alias_value":"63PAAHIVSUSBLNYG","created_at":"2026-05-18T12:26:56Z"},{"alias_kind":"pith_short_8","alias_value":"63PAAHIV","created_at":"2026-05-18T12:26:56Z"}],"graph_snapshots":[{"event_id":"sha256:b4d612469332052af9481845ca24c17b8c3b2e5498dc3a02c73ebcdab718ad72","target":"graph","created_at":"2026-05-18T03:46:48Z","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":"In data languages the positions of strings and trees carry a label from a finite alphabet and a data value from an infinite alphabet. Extensions of automata and logics over finite alphabets have been defined to recognize data languages, both in the string and tree cases. In this paper we describe and compare the complexity and expressiveness of such models to understand which ones are better candidates as regular models.","authors_text":"Loris D'Antoni","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.FL","submitted_at":"2012-08-29T18:25:03Z","title":"In the Maze of Data Languages"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1208.5980","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":"sha256:65c34269845f36583275cbd4c9ac07d41b0a2629a0f7527d203ae7f1b7690c40","target":"record","created_at":"2026-05-18T03:46:48Z","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":"3ff496e55eb9479d608986c9413f29842017a434394214d3f2f8d664965f1d33","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.FL","submitted_at":"2012-08-29T18:25:03Z","title_canon_sha256":"2a549f28215a4507d8552026b1b66e9a6e413cf3e2226828011d80c62cbda792"},"schema_version":"1.0","source":{"id":"1208.5980","kind":"arxiv","version":1}},"canonical_sha256":"f6de001d15952415b706fd2455d5798354ad0a5457f0e232bdf9b4621e64d18f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f6de001d15952415b706fd2455d5798354ad0a5457f0e232bdf9b4621e64d18f","first_computed_at":"2026-05-18T03:46:48.196777Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:46:48.196777Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8ABaK5dL7BOtcrdqWNS+qho4GdQms9zOVRD1RiKOkyjiXJPAy1sghSKYDZ+yEmNDxgyXrSwydZS/b/LrQ/pRBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:46:48.197548Z","signed_message":"canonical_sha256_bytes"},"source_id":"1208.5980","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:65c34269845f36583275cbd4c9ac07d41b0a2629a0f7527d203ae7f1b7690c40","sha256:b4d612469332052af9481845ca24c17b8c3b2e5498dc3a02c73ebcdab718ad72"],"state_sha256":"978f8e1ee1a6995058c190f566b310a5aa51ce7bb3e07d517d7d4198e6981050"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2OWNTKEsuDeFE7vQBu8uz35gW5TYVQA4qN4KyEoYifOl0AnHSf3sxaZOK8YklqpDQsW7hYn5DolIqkCldoRWCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-08T06:14:53.265107Z","bundle_sha256":"a3368e39a3fdfbc9b8aa0b414052eff2df2d3b2d89b45f36b53e0c2cdad047d4"}}