{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-25-330977","form_type":"8-K","ticker":"ZCSH","cik":"0001720265","company_name":"Grayscale Zcash Trust (ZEC)","filed_at":"2025-12-23T23:59:59+00:00","discovered_at":"2026-05-14T18:02:40.248895+00:00","generated_at":"2026-05-16T12:16:22.122497+00:00","sec_items":["8.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.4,"calibrated_materiality_score":0.4,"confidence":"high","headline":"Grayscale Zcash Trust removes Bitfinex from price index due to liquidity failure","bullets":["Effective Dec 21, 2025, Bitfinex removed from CoinDesk Zcash Price Index for failing minimum liquidity requirement.","No new trading platforms added in the quarterly review; remaining constituents: Coinbase, Kraken, Gemini.","Index Provider may change constituents at any time; next scheduled quarterly review will assess criteria.","Trust's share value is derived from the Index Price, making index composition material to net asset value."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-25-330977","json":"https://secwatch.observer/filing/0001193125-25-330977.json","markdown":"https://secwatch.observer/filing/0001193125-25-330977.md","text":"https://secwatch.observer/filing/0001193125-25-330977.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1720265/000119312525330977/0001193125-25-330977-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1720265/000119312525330977/zcsh-20251221.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-16T12:16:22.122497+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}