{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:AW4A4A6SOMPGHXLUGEPIVNDAGS","short_pith_number":"pith:AW4A4A6S","canonical_record":{"source":{"id":"1802.06668","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.DS","submitted_at":"2018-02-19T15:29:11Z","cross_cats_sorted":["cs.FL"],"title_canon_sha256":"428482bcc4ff0b3137de02b51c9db8a5de824cc453bedd58a8316fb6b53e039b","abstract_canon_sha256":"41bf9ec7339723e555303e953180f0f3c71d7f8414189a1bbb7af65f84a2e702"},"schema_version":"1.0"},"canonical_sha256":"05b80e03d2731e63dd74311e8ab46034b66d311ceae97555b2353f9ead19a08f","source":{"kind":"arxiv","id":"1802.06668","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.06668","created_at":"2026-05-18T00:19:08Z"},{"alias_kind":"arxiv_version","alias_value":"1802.06668v2","created_at":"2026-05-18T00:19:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.06668","created_at":"2026-05-18T00:19:08Z"},{"alias_kind":"pith_short_12","alias_value":"AW4A4A6SOMPG","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_16","alias_value":"AW4A4A6SOMPGHXLU","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_8","alias_value":"AW4A4A6S","created_at":"2026-05-18T12:32:13Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:AW4A4A6SOMPGHXLUGEPIVNDAGS","target":"record","payload":{"canonical_record":{"source":{"id":"1802.06668","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.DS","submitted_at":"2018-02-19T15:29:11Z","cross_cats_sorted":["cs.FL"],"title_canon_sha256":"428482bcc4ff0b3137de02b51c9db8a5de824cc453bedd58a8316fb6b53e039b","abstract_canon_sha256":"41bf9ec7339723e555303e953180f0f3c71d7f8414189a1bbb7af65f84a2e702"},"schema_version":"1.0"},"canonical_sha256":"05b80e03d2731e63dd74311e8ab46034b66d311ceae97555b2353f9ead19a08f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:19:08.317939Z","signature_b64":"j0xEc+yXF5oKSgowDkk9ZDPk/XXDV9Xqfzf+HlH5L5Ozxez+lvr0JY9lrSd5FBws+3u7dPaE2nk9McKpJu9hCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"05b80e03d2731e63dd74311e8ab46034b66d311ceae97555b2353f9ead19a08f","last_reissued_at":"2026-05-18T00:19:08.317251Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:19:08.317251Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1802.06668","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":"2026-05-18T00:19:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0XF5EbyGQWLchLOMvutbrjtUHZNagELI00ylVCaSaiuQDXHLFy0DZKK/Mk8erCnUPAxvDPTsgp/DzdnMEYTRBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T08:07:28.292146Z"},"content_sha256":"a2bbed24bbbf92b8d6ac9ec8604bf24a7e92e6bc7c017b9572b40cfbe26a7d44","schema_version":"1.0","event_id":"sha256:a2bbed24bbbf92b8d6ac9ec8604bf24a7e92e6bc7c017b9572b40cfbe26a7d44"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:AW4A4A6SOMPGHXLUGEPIVNDAGS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Sequentializing cellular automata","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.FL"],"primary_cat":"math.DS","authors_text":"Jarkko Kari, Thomas Worsch, Ville Salo","submitted_at":"2018-02-19T15:29:11Z","abstract_excerpt":"We study the problem of sequentializing a cellular automaton without introducing any intermediate states, and only performing reversible permutations on the tape. We give a decidable characterization of cellular automata which can be written as a single left-to-right sweep of a bijective rule from left to right over an infinite tape."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.06668","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":"2026-05-18T00:19:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GuPSPlv1I/4n1gURTXCDbolpPJzdDzS7KLxcJfc11t6ujnwG8E0dbnEk4li7cApTE5oyFZMb3Xyzr+Dt+tcHAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T08:07:28.292838Z"},"content_sha256":"3ffe14ade57afe30fba1b68f3aaaacd5a5a3e142d1311fcd39e36b9e063def66","schema_version":"1.0","event_id":"sha256:3ffe14ade57afe30fba1b68f3aaaacd5a5a3e142d1311fcd39e36b9e063def66"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AW4A4A6SOMPGHXLUGEPIVNDAGS/bundle.json","state_url":"https://pith.science/pith/AW4A4A6SOMPGHXLUGEPIVNDAGS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AW4A4A6SOMPGHXLUGEPIVNDAGS/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":"2026-06-09T08:07:28Z","links":{"resolver":"https://pith.science/pith/AW4A4A6SOMPGHXLUGEPIVNDAGS","bundle":"https://pith.science/pith/AW4A4A6SOMPGHXLUGEPIVNDAGS/bundle.json","state":"https://pith.science/pith/AW4A4A6SOMPGHXLUGEPIVNDAGS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AW4A4A6SOMPGHXLUGEPIVNDAGS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:AW4A4A6SOMPGHXLUGEPIVNDAGS","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":"41bf9ec7339723e555303e953180f0f3c71d7f8414189a1bbb7af65f84a2e702","cross_cats_sorted":["cs.FL"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.DS","submitted_at":"2018-02-19T15:29:11Z","title_canon_sha256":"428482bcc4ff0b3137de02b51c9db8a5de824cc453bedd58a8316fb6b53e039b"},"schema_version":"1.0","source":{"id":"1802.06668","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.06668","created_at":"2026-05-18T00:19:08Z"},{"alias_kind":"arxiv_version","alias_value":"1802.06668v2","created_at":"2026-05-18T00:19:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.06668","created_at":"2026-05-18T00:19:08Z"},{"alias_kind":"pith_short_12","alias_value":"AW4A4A6SOMPG","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_16","alias_value":"AW4A4A6SOMPGHXLU","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_8","alias_value":"AW4A4A6S","created_at":"2026-05-18T12:32:13Z"}],"graph_snapshots":[{"event_id":"sha256:3ffe14ade57afe30fba1b68f3aaaacd5a5a3e142d1311fcd39e36b9e063def66","target":"graph","created_at":"2026-05-18T00:19:08Z","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 study the problem of sequentializing a cellular automaton without introducing any intermediate states, and only performing reversible permutations on the tape. We give a decidable characterization of cellular automata which can be written as a single left-to-right sweep of a bijective rule from left to right over an infinite tape.","authors_text":"Jarkko Kari, Thomas Worsch, Ville Salo","cross_cats":["cs.FL"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.DS","submitted_at":"2018-02-19T15:29:11Z","title":"Sequentializing cellular automata"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.06668","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:a2bbed24bbbf92b8d6ac9ec8604bf24a7e92e6bc7c017b9572b40cfbe26a7d44","target":"record","created_at":"2026-05-18T00:19:08Z","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":"41bf9ec7339723e555303e953180f0f3c71d7f8414189a1bbb7af65f84a2e702","cross_cats_sorted":["cs.FL"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.DS","submitted_at":"2018-02-19T15:29:11Z","title_canon_sha256":"428482bcc4ff0b3137de02b51c9db8a5de824cc453bedd58a8316fb6b53e039b"},"schema_version":"1.0","source":{"id":"1802.06668","kind":"arxiv","version":2}},"canonical_sha256":"05b80e03d2731e63dd74311e8ab46034b66d311ceae97555b2353f9ead19a08f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"05b80e03d2731e63dd74311e8ab46034b66d311ceae97555b2353f9ead19a08f","first_computed_at":"2026-05-18T00:19:08.317251Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:19:08.317251Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"j0xEc+yXF5oKSgowDkk9ZDPk/XXDV9Xqfzf+HlH5L5Ozxez+lvr0JY9lrSd5FBws+3u7dPaE2nk9McKpJu9hCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:19:08.317939Z","signed_message":"canonical_sha256_bytes"},"source_id":"1802.06668","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a2bbed24bbbf92b8d6ac9ec8604bf24a7e92e6bc7c017b9572b40cfbe26a7d44","sha256:3ffe14ade57afe30fba1b68f3aaaacd5a5a3e142d1311fcd39e36b9e063def66"],"state_sha256":"48f361b66b828e326fdf04f6bcf06cdbaaa0fa256e7d073b79ba00be692079f9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ckw4iy58Ug04H6XlU966rXPMyGl10ypnd/LUO5qbyyaYzRjMpijaPzuB8PIjTRH6x8oHP4v+G/dX+zhXCPHJBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-09T08:07:28.297880Z","bundle_sha256":"a4d1ba9802d0adf1a2c16cf0bf6aa1b328ab34d454840a545e02419d08944e6d"}}