{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:QW6G43VUBECSSXA2FKDOG4PXHB","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":"8537e2c68c4875adbdfbae88604d7cf5c189145914a115a445fed0264cb7ef47","cross_cats_sorted":["physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.CB","submitted_at":"2018-03-19T23:50:48Z","title_canon_sha256":"15dd0847d798471e413b7570200f4871cdbfbe419891421f61db00931be7fda6"},"schema_version":"1.0","source":{"id":"1804.06228","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.06228","created_at":"2026-05-18T00:10:59Z"},{"alias_kind":"arxiv_version","alias_value":"1804.06228v2","created_at":"2026-05-18T00:10:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.06228","created_at":"2026-05-18T00:10:59Z"},{"alias_kind":"pith_short_12","alias_value":"QW6G43VUBECS","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_16","alias_value":"QW6G43VUBECSSXA2","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_8","alias_value":"QW6G43VU","created_at":"2026-05-18T12:32:46Z"}],"graph_snapshots":[{"event_id":"sha256:509e7c27b0e3a2c39044ab370126d9dd1ef59c57d4da81c641b86c69a7d06d30","target":"graph","created_at":"2026-05-18T00:10:59Z","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":"Despite simplicity, the synchronous cellular automaton [D.A. Young, Math. Biosci. 72, 51 (1984)] enables reconstructing basic features of patterns of skin. Our extended model allows studying the formatting of patterns and their temporal evolution also on the favourable and hostile environments. As a result, the impact of different types of an environment is accounted for the dynamics of patterns formation. The process is based on two diffusible morphogens, the short-range activator and the long-range inhibitor, produced by differentiated cells (DCs) represented as black pixels. For a neutral e","authors_text":"K. Smaga, R. Piasecki, W. Olchawa","cross_cats":["physics.comp-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.CB","submitted_at":"2018-03-19T23:50:48Z","title":"Sensitivity to initial conditions in an extended activator-inhibitor model for the formation of patterns"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.06228","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:ce5bc6a12e7dfb37957904398d477b14a63fd52d217c01035ff40ec8fec48034","target":"record","created_at":"2026-05-18T00:10:59Z","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":"8537e2c68c4875adbdfbae88604d7cf5c189145914a115a445fed0264cb7ef47","cross_cats_sorted":["physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.CB","submitted_at":"2018-03-19T23:50:48Z","title_canon_sha256":"15dd0847d798471e413b7570200f4871cdbfbe419891421f61db00931be7fda6"},"schema_version":"1.0","source":{"id":"1804.06228","kind":"arxiv","version":2}},"canonical_sha256":"85bc6e6eb40905295c1a2a86e371f73842616823a942637a47fc4b2aa8e35aa4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"85bc6e6eb40905295c1a2a86e371f73842616823a942637a47fc4b2aa8e35aa4","first_computed_at":"2026-05-18T00:10:59.750642Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:10:59.750642Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ep03WaEWt2bf55T3/7lyLsNiZeE3UONw3rMEdaJOoqpa1xnOqN+CCk9vkP7Gk7O64gxTEDwAcJcSZkDnhSwRDA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:10:59.751292Z","signed_message":"canonical_sha256_bytes"},"source_id":"1804.06228","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ce5bc6a12e7dfb37957904398d477b14a63fd52d217c01035ff40ec8fec48034","sha256:509e7c27b0e3a2c39044ab370126d9dd1ef59c57d4da81c641b86c69a7d06d30"],"state_sha256":"0d361adab21356b4d5368f2e62f96e30ee4f86f6ed5220c12430cd22b535a597"}