{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:C4SEE6RX72O6OPYO2VMU3MOM3P","short_pith_number":"pith:C4SEE6RX","canonical_record":{"source":{"id":"1503.07345","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.data-an","submitted_at":"2015-03-25T11:41:21Z","cross_cats_sorted":["nlin.CD"],"title_canon_sha256":"9d31c3419a42117a8bf6e1c678010a2332fb3e5d34adf03e36f99a97dc1a4c48","abstract_canon_sha256":"37e5f720392e9026a19dbfc367d2aebe04db73de09dc640a441d453c68d6797f"},"schema_version":"1.0"},"canonical_sha256":"1724427a37fe9de73f0ed5594db1ccdbfd7ef904dbb85312219f34425565b442","source":{"kind":"arxiv","id":"1503.07345","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1503.07345","created_at":"2026-05-18T01:31:40Z"},{"alias_kind":"arxiv_version","alias_value":"1503.07345v1","created_at":"2026-05-18T01:31:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1503.07345","created_at":"2026-05-18T01:31:40Z"},{"alias_kind":"pith_short_12","alias_value":"C4SEE6RX72O6","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_16","alias_value":"C4SEE6RX72O6OPYO","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_8","alias_value":"C4SEE6RX","created_at":"2026-05-18T12:29:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:C4SEE6RX72O6OPYO2VMU3MOM3P","target":"record","payload":{"canonical_record":{"source":{"id":"1503.07345","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.data-an","submitted_at":"2015-03-25T11:41:21Z","cross_cats_sorted":["nlin.CD"],"title_canon_sha256":"9d31c3419a42117a8bf6e1c678010a2332fb3e5d34adf03e36f99a97dc1a4c48","abstract_canon_sha256":"37e5f720392e9026a19dbfc367d2aebe04db73de09dc640a441d453c68d6797f"},"schema_version":"1.0"},"canonical_sha256":"1724427a37fe9de73f0ed5594db1ccdbfd7ef904dbb85312219f34425565b442","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:31:40.030527Z","signature_b64":"0PuDpO8suhpayD6zjerIOYVSkbTNQmfR0FukuATqKlRXI2AG32hqhJo0zrBslD8A4y6Y0V/tXvKuu536scekCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1724427a37fe9de73f0ed5594db1ccdbfd7ef904dbb85312219f34425565b442","last_reissued_at":"2026-05-18T01:31:40.030028Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:31:40.030028Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1503.07345","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":"2026-05-18T01:31:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/XsAsD99yJcgTuSBMVQ2yIRyaZg9ngQs2pTR25huxFH/Cr/Z5gfyTIrh5K0Ktc56tCsslcGOe391EX+C01jlDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-23T04:09:54.670972Z"},"content_sha256":"dbcf847350da262f4313b4cdbdb9152c28e038aaa8cdb711fffb1a988997c31f","schema_version":"1.0","event_id":"sha256:dbcf847350da262f4313b4cdbdb9152c28e038aaa8cdb711fffb1a988997c31f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:C4SEE6RX72O6OPYO2VMU3MOM3P","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Numerical and experimental study of the effects of noise on the permutation entropy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nlin.CD"],"primary_cat":"physics.data-an","authors_text":"C. Quintero-Quiroz, Cristina Masoller, M. C. Torrent, Simone Pigolotti","submitted_at":"2015-03-25T11:41:21Z","abstract_excerpt":"We analyze the effects of noise on the permutation entropy of dynamical systems. We take as numerical examples the logistic map and the R\\\"ossler system. Upon varying the noise strengthfaster, we find a transition from an almost-deterministic regime, where the permutation entropy grows slower than linearly with the pattern dimension, to a noise-dominated regime, where the permutation entropy grows faster than linearly with the pattern dimension. We perform the same analysis on experimental time-series by considering the stochastic spiking output of a semiconductor laser with optical feedback. "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1503.07345","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":"2026-05-18T01:31:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hs3AoneGpl+1VgtKRRNXOA1YVUY6vt0hD59FgVXWWrGIWlh15DMpMxHrBq8WcWGSDC6LI5yWasE8OkHZeM26CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-23T04:09:54.671328Z"},"content_sha256":"285af11040b543a3dbe8198ee33cbc4de5f90c7d47c32801c20389860ae90629","schema_version":"1.0","event_id":"sha256:285af11040b543a3dbe8198ee33cbc4de5f90c7d47c32801c20389860ae90629"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/C4SEE6RX72O6OPYO2VMU3MOM3P/bundle.json","state_url":"https://pith.science/pith/C4SEE6RX72O6OPYO2VMU3MOM3P/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/C4SEE6RX72O6OPYO2VMU3MOM3P/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":"2026-06-23T04:09:54Z","links":{"resolver":"https://pith.science/pith/C4SEE6RX72O6OPYO2VMU3MOM3P","bundle":"https://pith.science/pith/C4SEE6RX72O6OPYO2VMU3MOM3P/bundle.json","state":"https://pith.science/pith/C4SEE6RX72O6OPYO2VMU3MOM3P/state.json","well_known_bundle":"https://pith.science/.well-known/pith/C4SEE6RX72O6OPYO2VMU3MOM3P/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:C4SEE6RX72O6OPYO2VMU3MOM3P","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":"37e5f720392e9026a19dbfc367d2aebe04db73de09dc640a441d453c68d6797f","cross_cats_sorted":["nlin.CD"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.data-an","submitted_at":"2015-03-25T11:41:21Z","title_canon_sha256":"9d31c3419a42117a8bf6e1c678010a2332fb3e5d34adf03e36f99a97dc1a4c48"},"schema_version":"1.0","source":{"id":"1503.07345","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1503.07345","created_at":"2026-05-18T01:31:40Z"},{"alias_kind":"arxiv_version","alias_value":"1503.07345v1","created_at":"2026-05-18T01:31:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1503.07345","created_at":"2026-05-18T01:31:40Z"},{"alias_kind":"pith_short_12","alias_value":"C4SEE6RX72O6","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_16","alias_value":"C4SEE6RX72O6OPYO","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_8","alias_value":"C4SEE6RX","created_at":"2026-05-18T12:29:14Z"}],"graph_snapshots":[{"event_id":"sha256:285af11040b543a3dbe8198ee33cbc4de5f90c7d47c32801c20389860ae90629","target":"graph","created_at":"2026-05-18T01:31:40Z","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":"We analyze the effects of noise on the permutation entropy of dynamical systems. We take as numerical examples the logistic map and the R\\\"ossler system. Upon varying the noise strengthfaster, we find a transition from an almost-deterministic regime, where the permutation entropy grows slower than linearly with the pattern dimension, to a noise-dominated regime, where the permutation entropy grows faster than linearly with the pattern dimension. We perform the same analysis on experimental time-series by considering the stochastic spiking output of a semiconductor laser with optical feedback. ","authors_text":"C. Quintero-Quiroz, Cristina Masoller, M. C. Torrent, Simone Pigolotti","cross_cats":["nlin.CD"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.data-an","submitted_at":"2015-03-25T11:41:21Z","title":"Numerical and experimental study of the effects of noise on the permutation entropy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1503.07345","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:dbcf847350da262f4313b4cdbdb9152c28e038aaa8cdb711fffb1a988997c31f","target":"record","created_at":"2026-05-18T01:31:40Z","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":"37e5f720392e9026a19dbfc367d2aebe04db73de09dc640a441d453c68d6797f","cross_cats_sorted":["nlin.CD"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.data-an","submitted_at":"2015-03-25T11:41:21Z","title_canon_sha256":"9d31c3419a42117a8bf6e1c678010a2332fb3e5d34adf03e36f99a97dc1a4c48"},"schema_version":"1.0","source":{"id":"1503.07345","kind":"arxiv","version":1}},"canonical_sha256":"1724427a37fe9de73f0ed5594db1ccdbfd7ef904dbb85312219f34425565b442","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1724427a37fe9de73f0ed5594db1ccdbfd7ef904dbb85312219f34425565b442","first_computed_at":"2026-05-18T01:31:40.030028Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:31:40.030028Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0PuDpO8suhpayD6zjerIOYVSkbTNQmfR0FukuATqKlRXI2AG32hqhJo0zrBslD8A4y6Y0V/tXvKuu536scekCA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:31:40.030527Z","signed_message":"canonical_sha256_bytes"},"source_id":"1503.07345","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dbcf847350da262f4313b4cdbdb9152c28e038aaa8cdb711fffb1a988997c31f","sha256:285af11040b543a3dbe8198ee33cbc4de5f90c7d47c32801c20389860ae90629"],"state_sha256":"dfcfb62767d388acde20b242c9917226ad95057ae397c2341b0daf6bde9d2ec0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IrGxp7+jryVW9CySgCCH/Cx1NUhilByaGG4dDD8sjoDUFjZUB0izFrTU0NGmi4w5ZwApngVzItHbD8Hmwrq5Bg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-23T04:09:54.673502Z","bundle_sha256":"2314e0b225aee4f3d413ce206299fe00325e9ac6275e8482673320ededda2f4d"}}