{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:4LAEDSEVQODW2KGFYD2IH36TNF","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":"14cd7ea46f8ed9a41c741c477909cf3572f7b6c3ff135fb45055fc02b1386792","cross_cats_sorted":["nlin.PS"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.CG","submitted_at":"2008-02-26T20:31:32Z","title_canon_sha256":"be97ea04b82e68a020806a68de9fc71ec13593458c1fe638ef84c7f65a88f0c4"},"schema_version":"1.0","source":{"id":"0802.3891","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0802.3891","created_at":"2026-05-18T04:20:04Z"},{"alias_kind":"arxiv_version","alias_value":"0802.3891v1","created_at":"2026-05-18T04:20:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0802.3891","created_at":"2026-05-18T04:20:04Z"},{"alias_kind":"pith_short_12","alias_value":"4LAEDSEVQODW","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_16","alias_value":"4LAEDSEVQODW2KGF","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_8","alias_value":"4LAEDSEV","created_at":"2026-05-18T12:25:56Z"}],"graph_snapshots":[{"event_id":"sha256:86a2667847ec05dc1375421f477672319c0ddc9af2822118cc7b09df4c27903c","target":"graph","created_at":"2026-05-18T04:20:04Z","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 a two-dimensional semi-totalistic binary cell-state cellular automaton, which imitates a reversible precipitation in an abstract chemical medium. The systems exhibits a non-trivial growth and nucleation. We demonstrate how basic computational operation can be realized in the system when the propagation of the growing patterns is self-restricted by stationary localizations. We show that precipitating patterns of different morphology compete between each other and thus implement serial and non-serial logical gates.","authors_text":"Andrew Adamatzky, Ben De Lacy Costello, Genaro Juarez Martinez","cross_cats":["nlin.PS"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.CG","submitted_at":"2008-02-26T20:31:32Z","title":"On logical gates in precipitating medium: cellular automaton model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0802.3891","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:dfd9fc1a264f3394b7ba3577a090b5209900dcfe0202105bf28b4f8783fa5214","target":"record","created_at":"2026-05-18T04:20:04Z","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":"14cd7ea46f8ed9a41c741c477909cf3572f7b6c3ff135fb45055fc02b1386792","cross_cats_sorted":["nlin.PS"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.CG","submitted_at":"2008-02-26T20:31:32Z","title_canon_sha256":"be97ea04b82e68a020806a68de9fc71ec13593458c1fe638ef84c7f65a88f0c4"},"schema_version":"1.0","source":{"id":"0802.3891","kind":"arxiv","version":1}},"canonical_sha256":"e2c041c89583876d28c5c0f483efd3697f20a68704188248c3b2b60f04096674","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e2c041c89583876d28c5c0f483efd3697f20a68704188248c3b2b60f04096674","first_computed_at":"2026-05-18T04:20:04.002602Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:20:04.002602Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Vmz7NpzZjXKgSaqLE6vG41rlKOXfAo/VC7XHcUMLPz9D24qRz2UifYGxNJ/2EFezHH9p/AuYAAfUtPz/WfMiCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:20:04.003045Z","signed_message":"canonical_sha256_bytes"},"source_id":"0802.3891","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dfd9fc1a264f3394b7ba3577a090b5209900dcfe0202105bf28b4f8783fa5214","sha256:86a2667847ec05dc1375421f477672319c0ddc9af2822118cc7b09df4c27903c"],"state_sha256":"f1da2d2b5019d8446b6f51877ce132966326875a5c5617b28598a4d92297fd0f"}