{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:KO2G4ED7H6QYV3C3TMUEHBSNHI","short_pith_number":"pith:KO2G4ED7","canonical_record":{"source":{"id":"1503.07657","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.AO","submitted_at":"2015-03-26T09:34:07Z","cross_cats_sorted":[],"title_canon_sha256":"307b73f12478e3dc4fafb97eb1cbf71525c7d58e78e139e549617ad23198f060","abstract_canon_sha256":"19055df31de68894237dd026cdc397e7f472bf81df0d0462fc8f0b4e02403c78"},"schema_version":"1.0"},"canonical_sha256":"53b46e107f3fa18aec5b9b2843864d3a06b7038c9fa10f69766c05d0348366be","source":{"kind":"arxiv","id":"1503.07657","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1503.07657","created_at":"2026-05-18T01:09:36Z"},{"alias_kind":"arxiv_version","alias_value":"1503.07657v2","created_at":"2026-05-18T01:09:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1503.07657","created_at":"2026-05-18T01:09:36Z"},{"alias_kind":"pith_short_12","alias_value":"KO2G4ED7H6QY","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_16","alias_value":"KO2G4ED7H6QYV3C3","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_8","alias_value":"KO2G4ED7","created_at":"2026-05-18T12:29:29Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:KO2G4ED7H6QYV3C3TMUEHBSNHI","target":"record","payload":{"canonical_record":{"source":{"id":"1503.07657","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.AO","submitted_at":"2015-03-26T09:34:07Z","cross_cats_sorted":[],"title_canon_sha256":"307b73f12478e3dc4fafb97eb1cbf71525c7d58e78e139e549617ad23198f060","abstract_canon_sha256":"19055df31de68894237dd026cdc397e7f472bf81df0d0462fc8f0b4e02403c78"},"schema_version":"1.0"},"canonical_sha256":"53b46e107f3fa18aec5b9b2843864d3a06b7038c9fa10f69766c05d0348366be","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:09:36.886530Z","signature_b64":"FMdiZrW2gt2HCyUI/xq3A/cJUxY9sO4QzKN0uwXrTT9IZ4X3BDzE2J4eg0TVwM0lz6a8l+gnUuWmmCWeeYBHAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"53b46e107f3fa18aec5b9b2843864d3a06b7038c9fa10f69766c05d0348366be","last_reissued_at":"2026-05-18T01:09:36.886117Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:09:36.886117Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1503.07657","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":"2026-05-18T01:09:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MXAgCj/tH4MvAY3iJIfiLOm6ZeQamlaYHiltwq7EPTf+KKYzVU9t2YOxGrJSeZEKHQ24aIGClRvk37q8fEA6Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T05:33:27.650716Z"},"content_sha256":"016b720b397175b8c47d8b96dd174921b3384c3058da537c2ed5bd5e6d1605e8","schema_version":"1.0","event_id":"sha256:016b720b397175b8c47d8b96dd174921b3384c3058da537c2ed5bd5e6d1605e8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:KO2G4ED7H6QYV3C3TMUEHBSNHI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Adaptive control of synchronization in delay-coupled heterogeneous networks of FitzHugh-Nagumo nodes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nlin.AO","authors_text":"A. L. Fradkov, E. Sch\\\"oll, J. Lehnert, S. A. Plotnikov","submitted_at":"2015-03-26T09:34:07Z","abstract_excerpt":"We study synchronization in delay-coupled neural networks of heterogeneous nodes. It is well known that heterogeneities in the nodes hinder synchronization when becoming too large. We show that an adaptive tuning of the overall coupling strength can be used to counteract the effect of the heterogeneity. Our adaptive controller is demonstrated on ring networks of FitzHugh-Nagumo systems which are paradigmatic for excitable dynamics but can also -- depending on the system parameters -- exhibit self-sustained periodic firing. We show that the adaptively tuned time-delayed coupling enables synchro"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1503.07657","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":"2026-05-18T01:09:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Zf73TVgVHtS+My3UCXRkgAfNAxyn48lFdbggnP4CE97qOS260pjXQ8Fh9A9ewy4W6qVLP/ihh4yYmRU/E4tfAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T05:33:27.651070Z"},"content_sha256":"9e5c7ddb67f3cf2e646870634a3d26eb0349a60de55bcbc4d0655afee34f740d","schema_version":"1.0","event_id":"sha256:9e5c7ddb67f3cf2e646870634a3d26eb0349a60de55bcbc4d0655afee34f740d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KO2G4ED7H6QYV3C3TMUEHBSNHI/bundle.json","state_url":"https://pith.science/pith/KO2G4ED7H6QYV3C3TMUEHBSNHI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KO2G4ED7H6QYV3C3TMUEHBSNHI/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":"2026-06-02T05:33:27Z","links":{"resolver":"https://pith.science/pith/KO2G4ED7H6QYV3C3TMUEHBSNHI","bundle":"https://pith.science/pith/KO2G4ED7H6QYV3C3TMUEHBSNHI/bundle.json","state":"https://pith.science/pith/KO2G4ED7H6QYV3C3TMUEHBSNHI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KO2G4ED7H6QYV3C3TMUEHBSNHI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:KO2G4ED7H6QYV3C3TMUEHBSNHI","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":"19055df31de68894237dd026cdc397e7f472bf81df0d0462fc8f0b4e02403c78","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.AO","submitted_at":"2015-03-26T09:34:07Z","title_canon_sha256":"307b73f12478e3dc4fafb97eb1cbf71525c7d58e78e139e549617ad23198f060"},"schema_version":"1.0","source":{"id":"1503.07657","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1503.07657","created_at":"2026-05-18T01:09:36Z"},{"alias_kind":"arxiv_version","alias_value":"1503.07657v2","created_at":"2026-05-18T01:09:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1503.07657","created_at":"2026-05-18T01:09:36Z"},{"alias_kind":"pith_short_12","alias_value":"KO2G4ED7H6QY","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_16","alias_value":"KO2G4ED7H6QYV3C3","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_8","alias_value":"KO2G4ED7","created_at":"2026-05-18T12:29:29Z"}],"graph_snapshots":[{"event_id":"sha256:9e5c7ddb67f3cf2e646870634a3d26eb0349a60de55bcbc4d0655afee34f740d","target":"graph","created_at":"2026-05-18T01:09:36Z","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 synchronization in delay-coupled neural networks of heterogeneous nodes. It is well known that heterogeneities in the nodes hinder synchronization when becoming too large. We show that an adaptive tuning of the overall coupling strength can be used to counteract the effect of the heterogeneity. Our adaptive controller is demonstrated on ring networks of FitzHugh-Nagumo systems which are paradigmatic for excitable dynamics but can also -- depending on the system parameters -- exhibit self-sustained periodic firing. We show that the adaptively tuned time-delayed coupling enables synchro","authors_text":"A. L. Fradkov, E. Sch\\\"oll, J. Lehnert, S. A. Plotnikov","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.AO","submitted_at":"2015-03-26T09:34:07Z","title":"Adaptive control of synchronization in delay-coupled heterogeneous networks of FitzHugh-Nagumo nodes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1503.07657","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":"sha256:016b720b397175b8c47d8b96dd174921b3384c3058da537c2ed5bd5e6d1605e8","target":"record","created_at":"2026-05-18T01:09:36Z","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":"19055df31de68894237dd026cdc397e7f472bf81df0d0462fc8f0b4e02403c78","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.AO","submitted_at":"2015-03-26T09:34:07Z","title_canon_sha256":"307b73f12478e3dc4fafb97eb1cbf71525c7d58e78e139e549617ad23198f060"},"schema_version":"1.0","source":{"id":"1503.07657","kind":"arxiv","version":2}},"canonical_sha256":"53b46e107f3fa18aec5b9b2843864d3a06b7038c9fa10f69766c05d0348366be","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"53b46e107f3fa18aec5b9b2843864d3a06b7038c9fa10f69766c05d0348366be","first_computed_at":"2026-05-18T01:09:36.886117Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:09:36.886117Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"FMdiZrW2gt2HCyUI/xq3A/cJUxY9sO4QzKN0uwXrTT9IZ4X3BDzE2J4eg0TVwM0lz6a8l+gnUuWmmCWeeYBHAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:09:36.886530Z","signed_message":"canonical_sha256_bytes"},"source_id":"1503.07657","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:016b720b397175b8c47d8b96dd174921b3384c3058da537c2ed5bd5e6d1605e8","sha256:9e5c7ddb67f3cf2e646870634a3d26eb0349a60de55bcbc4d0655afee34f740d"],"state_sha256":"7a56e34a9eff76c00045c011c94bfd063583b391699ae72f3c854f58a8e3ff17"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TYxnTVjBPwjpQUAr08DUBt3qhcmQ5iSkKVq1L6vfHP8qsG1iBmM0xXaTq7vA7TugfjboAhAi89rxVIXE06b+Cw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T05:33:27.653205Z","bundle_sha256":"3ddb7e7953be79094bd7bd43a885df51240931c31476231fd5c8389a4e6a70af"}}