{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:CHU4B4VELHRMDGBUQIKIFPIW7D","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":"962335dd72623aeb399d9fe3858383984f21c3e8b42b482ddf56843288e41e1e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.PS","submitted_at":"2014-06-23T16:20:31Z","title_canon_sha256":"a664319fb8e627746d0a7774223ca299b1c04b888979f82d1dab9781a676d1c8"},"schema_version":"1.0","source":{"id":"1406.5964","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1406.5964","created_at":"2026-05-18T02:31:59Z"},{"alias_kind":"arxiv_version","alias_value":"1406.5964v2","created_at":"2026-05-18T02:31:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1406.5964","created_at":"2026-05-18T02:31:59Z"},{"alias_kind":"pith_short_12","alias_value":"CHU4B4VELHRM","created_at":"2026-05-18T12:28:22Z"},{"alias_kind":"pith_short_16","alias_value":"CHU4B4VELHRMDGBU","created_at":"2026-05-18T12:28:22Z"},{"alias_kind":"pith_short_8","alias_value":"CHU4B4VE","created_at":"2026-05-18T12:28:22Z"}],"graph_snapshots":[{"event_id":"sha256:28b76cd905753d1969bfe2a7b4535e99370c1aeec46bfb92e746b56162d3b4da","target":"graph","created_at":"2026-05-18T02:31:59Z","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":"In experiments with the photosensitive Belousov-Zhabotinsky reaction (PBZR) we found a stable three-dimensional organizing center that periodically emits trigger waves of chemical concentration. The experiments are performed in a parameter regime with negative line tension using an open gel reactor to maintain stationary non-equilibrium conditions. The observed periodic wave source is formed by a scroll ring stabilized due to its interaction with a no-flux boundary. Sufficiently far from the boundary, the scroll ring expands and undergoes the negative line tension instability before it finally","authors_text":"Arash Azhand, Harald Engel, Jan Frederik Totz","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.PS","submitted_at":"2014-06-23T16:20:31Z","title":"Three-Dimensional Autonomous Pacemaker in the Photosensitive Belousov-Zhabotinsky medium"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1406.5964","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:d5a5ba62d1bc5971c7d94ba846d9943310b58ba5c66bfa62fdbfe60fe476736c","target":"record","created_at":"2026-05-18T02:31:59Z","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":"962335dd72623aeb399d9fe3858383984f21c3e8b42b482ddf56843288e41e1e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.PS","submitted_at":"2014-06-23T16:20:31Z","title_canon_sha256":"a664319fb8e627746d0a7774223ca299b1c04b888979f82d1dab9781a676d1c8"},"schema_version":"1.0","source":{"id":"1406.5964","kind":"arxiv","version":2}},"canonical_sha256":"11e9c0f2a459e2c19834821482bd16f8defaade35fa7c5ba322dac6c41114fb1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"11e9c0f2a459e2c19834821482bd16f8defaade35fa7c5ba322dac6c41114fb1","first_computed_at":"2026-05-18T02:31:59.859341Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:31:59.859341Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"H0mJpTuyHh57hz4k8BpDjbqUHuqrJ0xcf3LBlBRNc6e89lwIr+C/DnRfRkO/F/T43cmxmOjGN9ce8pFqu8tlBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:31:59.860033Z","signed_message":"canonical_sha256_bytes"},"source_id":"1406.5964","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d5a5ba62d1bc5971c7d94ba846d9943310b58ba5c66bfa62fdbfe60fe476736c","sha256:28b76cd905753d1969bfe2a7b4535e99370c1aeec46bfb92e746b56162d3b4da"],"state_sha256":"617306214bdda64598ee90cace8e93cc4f7d43a499f9d8c764adecd491b2ce45"}