{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:RWSRXSJU7HF5SYDD3GACTL5FK7","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":"c5fcb2769e05b31b75e573638d3c57c53dfcb49a041d4196481c4c0f4166abd7","cross_cats_sorted":["physics.geo-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2009-04-16T11:11:24Z","title_canon_sha256":"5466927e0e590bf84e8d42e9e93a6f57afaca177366464cc4154fa39c37a16e6"},"schema_version":"1.0","source":{"id":"0904.2465","kind":"arxiv","version":10}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0904.2465","created_at":"2026-05-18T02:13:59Z"},{"alias_kind":"arxiv_version","alias_value":"0904.2465v10","created_at":"2026-05-18T02:13:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0904.2465","created_at":"2026-05-18T02:13:59Z"},{"alias_kind":"pith_short_12","alias_value":"RWSRXSJU7HF5","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_16","alias_value":"RWSRXSJU7HF5SYDD","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_8","alias_value":"RWSRXSJU","created_at":"2026-05-18T12:26:01Z"}],"graph_snapshots":[{"event_id":"sha256:01136927e4b9d5973ec4b94bcafbad515809ba776705d0d40f33868daa65d0a2","target":"graph","created_at":"2026-05-18T02:13:59Z","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":"Magnetic field variations are detected before rupture in the form of `spikes' of alternating sign. The distinction of these `spikes' from random noise is of major practical importance, since it is easier to conduct magnetic field measurements than electric field ones. Applying detrended fluctuation analysis (DFA), these `spikes' look to be random at short time-lags. On the other hand, long range correlations prevail at time-lags larger than the average time interval between consecutive `spikes' with a scaling exponent $\\alpha$ around 0.9. In addition, DFA is applied to recent preseismic electr","authors_text":"E.S. Skordas, N.V. Sarlis, P.A. Varotsos","cross_cats":["physics.geo-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2009-04-16T11:11:24Z","title":"Detrended fluctuation analysis of the magnetic and electric field variations that precede rupture"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0904.2465","kind":"arxiv","version":10},"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":"sha256:4aab3267d4ac54197cb00acaa81af0df7985fc3c340e7d8d91a0d31b4ffc666a","target":"record","created_at":"2026-05-18T02:13:59Z","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":"c5fcb2769e05b31b75e573638d3c57c53dfcb49a041d4196481c4c0f4166abd7","cross_cats_sorted":["physics.geo-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2009-04-16T11:11:24Z","title_canon_sha256":"5466927e0e590bf84e8d42e9e93a6f57afaca177366464cc4154fa39c37a16e6"},"schema_version":"1.0","source":{"id":"0904.2465","kind":"arxiv","version":10}},"canonical_sha256":"8da51bc934f9cbd96063d98029afa557f180a09d7c53b4c09fdaef497b785eb2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8da51bc934f9cbd96063d98029afa557f180a09d7c53b4c09fdaef497b785eb2","first_computed_at":"2026-05-18T02:13:59.904341Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:13:59.904341Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LU040V2r2wXmg66GD+L4H5sGSwpKkWXX5G7P10bmAEkB8Ju0w8GLolRi94jUzCrSMo9aIbIDiI8AbPnCSY3pCA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:13:59.905075Z","signed_message":"canonical_sha256_bytes"},"source_id":"0904.2465","source_kind":"arxiv","source_version":10}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4aab3267d4ac54197cb00acaa81af0df7985fc3c340e7d8d91a0d31b4ffc666a","sha256:01136927e4b9d5973ec4b94bcafbad515809ba776705d0d40f33868daa65d0a2"],"state_sha256":"8f6bfa484896740900765d1afb7ba7b72920340de796b6eba610048eb0d26251"}