{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:MTOTNMQT6JBLYFXF6T53WHUJZE","short_pith_number":"pith:MTOTNMQT","canonical_record":{"source":{"id":"1903.03827","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.ET","submitted_at":"2019-03-09T17:12:14Z","cross_cats_sorted":["cs.FL"],"title_canon_sha256":"4dc0609cc822c3928ea80d63b22bfea86d0e6f3e2c9fd30dd1c133dbb6e1207f","abstract_canon_sha256":"a2844731d573ebc3cdaca8a4008de2ab04ebfb9eb5574d6423452bac7f3571db"},"schema_version":"1.0"},"canonical_sha256":"64dd36b213f242bc16e5f4fbbb1e89c901484610cbe0e0d9bd945218ad7ce849","source":{"kind":"arxiv","id":"1903.03827","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.03827","created_at":"2026-05-17T23:51:40Z"},{"alias_kind":"arxiv_version","alias_value":"1903.03827v1","created_at":"2026-05-17T23:51:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.03827","created_at":"2026-05-17T23:51:40Z"},{"alias_kind":"pith_short_12","alias_value":"MTOTNMQT6JBL","created_at":"2026-05-18T12:33:24Z"},{"alias_kind":"pith_short_16","alias_value":"MTOTNMQT6JBLYFXF","created_at":"2026-05-18T12:33:24Z"},{"alias_kind":"pith_short_8","alias_value":"MTOTNMQT","created_at":"2026-05-18T12:33:24Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:MTOTNMQT6JBLYFXF6T53WHUJZE","target":"record","payload":{"canonical_record":{"source":{"id":"1903.03827","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.ET","submitted_at":"2019-03-09T17:12:14Z","cross_cats_sorted":["cs.FL"],"title_canon_sha256":"4dc0609cc822c3928ea80d63b22bfea86d0e6f3e2c9fd30dd1c133dbb6e1207f","abstract_canon_sha256":"a2844731d573ebc3cdaca8a4008de2ab04ebfb9eb5574d6423452bac7f3571db"},"schema_version":"1.0"},"canonical_sha256":"64dd36b213f242bc16e5f4fbbb1e89c901484610cbe0e0d9bd945218ad7ce849","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:51:40.845486Z","signature_b64":"UpAOCEJI/YF7tbpnwWSy+t7uXtvdRLxMriFgi6FRKX7q56M0EPRRCiGTAwbmrBjLkirsL+OdC7y+HQr+kMeRAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"64dd36b213f242bc16e5f4fbbb1e89c901484610cbe0e0d9bd945218ad7ce849","last_reissued_at":"2026-05-17T23:51:40.844948Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:51:40.844948Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1903.03827","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":"2026-05-17T23:51:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"io454JKl1M6DUTMnP2w9kouAM8OE4JQzQJ9AFYO1plo1GgEE1sFRK/h0kfhqJNsdfgMByrI8j8q+j0zIE7DQBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T00:39:35.818122Z"},"content_sha256":"b529925e19932dd2eb3206155309dd7e09347a5ea4ba2bd1cab98073cb0e0950","schema_version":"1.0","event_id":"sha256:b529925e19932dd2eb3206155309dd7e09347a5ea4ba2bd1cab98073cb0e0950"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:MTOTNMQT6JBLYFXF6T53WHUJZE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Native Chemical Automata and the Thermodynamic Interpretation of Their Experimental Accept/Reject Responses","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.FL"],"primary_cat":"cs.ET","authors_text":"Juan Perez-Mercader, Marta Duenas-Diez","submitted_at":"2019-03-09T17:12:14Z","abstract_excerpt":"The theory of computation is based on abstract computing automata which can be classified into a three-class hierarchy: Finite Automata (FA), Push-down Automata (PDA) and the Turing Machines (TM). Each class corresponds to grammar/language classes. The function of the automata consists on recognizing words in a language generated by some grammar and expressed with letters from an alphabet. Such automata are, in principle, abstract entities and with suitable combinations of them we can represent any computation, no matter how complex. Their physical implementations are possible in any informati"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.03827","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":"2026-05-17T23:51:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2kJBssllfHPoVHZydKs6TzTZwRJjVn1eghVUzcFEivg4jiVH1v9XDSaaGEfK8WpI7ggewYZ//0GdOKIkkdzwCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T00:39:35.818494Z"},"content_sha256":"4c76f5a89a8a95749fe1111d988fc723bf212827fb617337ad36dba3bee53749","schema_version":"1.0","event_id":"sha256:4c76f5a89a8a95749fe1111d988fc723bf212827fb617337ad36dba3bee53749"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MTOTNMQT6JBLYFXF6T53WHUJZE/bundle.json","state_url":"https://pith.science/pith/MTOTNMQT6JBLYFXF6T53WHUJZE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MTOTNMQT6JBLYFXF6T53WHUJZE/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":"2026-06-03T00:39:35Z","links":{"resolver":"https://pith.science/pith/MTOTNMQT6JBLYFXF6T53WHUJZE","bundle":"https://pith.science/pith/MTOTNMQT6JBLYFXF6T53WHUJZE/bundle.json","state":"https://pith.science/pith/MTOTNMQT6JBLYFXF6T53WHUJZE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MTOTNMQT6JBLYFXF6T53WHUJZE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:MTOTNMQT6JBLYFXF6T53WHUJZE","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":"a2844731d573ebc3cdaca8a4008de2ab04ebfb9eb5574d6423452bac7f3571db","cross_cats_sorted":["cs.FL"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.ET","submitted_at":"2019-03-09T17:12:14Z","title_canon_sha256":"4dc0609cc822c3928ea80d63b22bfea86d0e6f3e2c9fd30dd1c133dbb6e1207f"},"schema_version":"1.0","source":{"id":"1903.03827","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.03827","created_at":"2026-05-17T23:51:40Z"},{"alias_kind":"arxiv_version","alias_value":"1903.03827v1","created_at":"2026-05-17T23:51:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.03827","created_at":"2026-05-17T23:51:40Z"},{"alias_kind":"pith_short_12","alias_value":"MTOTNMQT6JBL","created_at":"2026-05-18T12:33:24Z"},{"alias_kind":"pith_short_16","alias_value":"MTOTNMQT6JBLYFXF","created_at":"2026-05-18T12:33:24Z"},{"alias_kind":"pith_short_8","alias_value":"MTOTNMQT","created_at":"2026-05-18T12:33:24Z"}],"graph_snapshots":[{"event_id":"sha256:4c76f5a89a8a95749fe1111d988fc723bf212827fb617337ad36dba3bee53749","target":"graph","created_at":"2026-05-17T23:51:40Z","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 theory of computation is based on abstract computing automata which can be classified into a three-class hierarchy: Finite Automata (FA), Push-down Automata (PDA) and the Turing Machines (TM). Each class corresponds to grammar/language classes. The function of the automata consists on recognizing words in a language generated by some grammar and expressed with letters from an alphabet. Such automata are, in principle, abstract entities and with suitable combinations of them we can represent any computation, no matter how complex. Their physical implementations are possible in any informati","authors_text":"Juan Perez-Mercader, Marta Duenas-Diez","cross_cats":["cs.FL"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.ET","submitted_at":"2019-03-09T17:12:14Z","title":"Native Chemical Automata and the Thermodynamic Interpretation of Their Experimental Accept/Reject Responses"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.03827","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:b529925e19932dd2eb3206155309dd7e09347a5ea4ba2bd1cab98073cb0e0950","target":"record","created_at":"2026-05-17T23:51:40Z","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":"a2844731d573ebc3cdaca8a4008de2ab04ebfb9eb5574d6423452bac7f3571db","cross_cats_sorted":["cs.FL"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.ET","submitted_at":"2019-03-09T17:12:14Z","title_canon_sha256":"4dc0609cc822c3928ea80d63b22bfea86d0e6f3e2c9fd30dd1c133dbb6e1207f"},"schema_version":"1.0","source":{"id":"1903.03827","kind":"arxiv","version":1}},"canonical_sha256":"64dd36b213f242bc16e5f4fbbb1e89c901484610cbe0e0d9bd945218ad7ce849","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"64dd36b213f242bc16e5f4fbbb1e89c901484610cbe0e0d9bd945218ad7ce849","first_computed_at":"2026-05-17T23:51:40.844948Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:51:40.844948Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"UpAOCEJI/YF7tbpnwWSy+t7uXtvdRLxMriFgi6FRKX7q56M0EPRRCiGTAwbmrBjLkirsL+OdC7y+HQr+kMeRAg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:51:40.845486Z","signed_message":"canonical_sha256_bytes"},"source_id":"1903.03827","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b529925e19932dd2eb3206155309dd7e09347a5ea4ba2bd1cab98073cb0e0950","sha256:4c76f5a89a8a95749fe1111d988fc723bf212827fb617337ad36dba3bee53749"],"state_sha256":"e015742f120f45f9ff24199c432a398093c42940e5a0348510f22bcc0db658ee"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fUYWn0cplP2LLMyOvKCveIZCEHcfgAEg/pmyYTqx2riPCyBGoute/2qgXdrHNr8j9pg6d3sL7h3Tk7YZlpRQCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T00:39:35.820424Z","bundle_sha256":"3d22ffe3bf903e0aa54b851d4002d0a790273dfc1533ae7d13502dfa519565c6"}}