{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:J743JSW7TAX3XK6F7FL4R3ACD3","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":"a07b28e5c56c95906066acaa3b6279aa974ded5654d8b81ea6228a01c4cad0c3","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"q-fin.ST","submitted_at":"2013-09-03T04:02:28Z","title_canon_sha256":"266296c343e5348de6d918245962130d0371918ce93dc3523131e26438025cf1"},"schema_version":"1.0","source":{"id":"1309.0582","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1309.0582","created_at":"2026-05-18T03:14:18Z"},{"alias_kind":"arxiv_version","alias_value":"1309.0582v1","created_at":"2026-05-18T03:14:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1309.0582","created_at":"2026-05-18T03:14:18Z"},{"alias_kind":"pith_short_12","alias_value":"J743JSW7TAX3","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_16","alias_value":"J743JSW7TAX3XK6F","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_8","alias_value":"J743JSW7","created_at":"2026-05-18T12:27:49Z"}],"graph_snapshots":[{"event_id":"sha256:9ccaf40577ad0ae1347f348788a513e94d3997d616515ad70d4cc0ebb7c1c974","target":"graph","created_at":"2026-05-18T03:14:18Z","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 long-term memory properties of hourly prices of electricity in the Czech Republic between 2009 and 2012. As the dynamics of the electricity prices is dominated by cycles -- mainly intraday and daily -- we opt for the detrended fluctuation analysis, which is well suited for such specific series. We find that the electricity prices are non-stationary but strongly mean-reverting which distinguishes them from other financial assets which are usually characterized as unit root series. Such description is attributed to specific features of electricity prices, mainly to non-storability. Ad","authors_text":"Ladislav Kristoufek, Petra Lunackova","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"q-fin.ST","submitted_at":"2013-09-03T04:02:28Z","title":"Long-term memory in electricity prices: Czech market evidence"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1309.0582","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":"sha256:6b06f741a891174e212231f5e57d5eb84a789f4d8783250d0e981a6d942a5a3a","target":"record","created_at":"2026-05-18T03:14:18Z","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":"a07b28e5c56c95906066acaa3b6279aa974ded5654d8b81ea6228a01c4cad0c3","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"q-fin.ST","submitted_at":"2013-09-03T04:02:28Z","title_canon_sha256":"266296c343e5348de6d918245962130d0371918ce93dc3523131e26438025cf1"},"schema_version":"1.0","source":{"id":"1309.0582","kind":"arxiv","version":1}},"canonical_sha256":"4ff9b4cadf982fbbabc5f957c8ec021efae4d730256f67a25892f82ebf637f93","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4ff9b4cadf982fbbabc5f957c8ec021efae4d730256f67a25892f82ebf637f93","first_computed_at":"2026-05-18T03:14:18.670014Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:14:18.670014Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"UO//h+LtXjWOZQwVN5eNjA7KqiE/yhhHudqs2pLjC7H96L0z6bPucizZlrcZorORC+3QPoIz/6Q0WVaMBDHDAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:14:18.670537Z","signed_message":"canonical_sha256_bytes"},"source_id":"1309.0582","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6b06f741a891174e212231f5e57d5eb84a789f4d8783250d0e981a6d942a5a3a","sha256:9ccaf40577ad0ae1347f348788a513e94d3997d616515ad70d4cc0ebb7c1c974"],"state_sha256":"8fe2091bde9a4f35cf8c1d7c2e23557f8a0dcf4846ed461d53db47efb8f2b0f2"}