{"schema_version":"secwatch.filing_event.v1","accession":"0000950170-23-000287","form_type":"8-K","ticker":"HZEN","cik":"0001748945","company_name":"Grayscale Horizen Trust (ZEN)","filed_at":"2023-01-06T23:59:59+00:00","discovered_at":"2026-05-14T18:03:46.400884+00:00","generated_at":"2026-06-20T18:53:30.947552+00:00","sec_items":["8.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.25,"calibrated_materiality_score":0.25,"confidence":"high","headline":"CoinDesk removes Bittrex from Horizen Trust reference rate due to low liquidity","bullets":["Bittrex removed from CoinDesk Horizen Reference Rate effective Jan 4, 2023, for failing minimum liquidity requirement.","No new constituent exchanges added; remaining exchanges are Coinbase Pro and Binance.US.","Reference Rate Provider may change trading venues or calculation methodology at any time; quarterly reviews scheduled.","Change could affect the Reference Rate Price used to value Grayscale Horizen Trust (ZEN) shares."],"urls":{"canonical":"https://secwatch.observer/filing/0000950170-23-000287","json":"https://secwatch.observer/filing/0000950170-23-000287.json","markdown":"https://secwatch.observer/filing/0000950170-23-000287.md","text":"https://secwatch.observer/filing/0000950170-23-000287.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1748945/000095017023000287/0000950170-23-000287-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1748945/000095017023000287/hzen-20230104.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-20T18:53:30.947552+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"}