{"schema_version":"secwatch.filing_event.v1","accession":"0000950170-25-089984","form_type":"8-K","ticker":"BTC","cik":"0002015034","company_name":"Grayscale Bitcoin Mini Trust ETF","filed_at":"2025-06-25T23:59:59+00:00","discovered_at":"2026-05-14T18:02:50.686536+00:00","generated_at":"2026-05-18T21:30:41.790258+00:00","sec_items":["8.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.35,"calibrated_materiality_score":0.35,"confidence":"high","headline":"Grayscale Bitcoin Mini Trust ETF adds Bitfinex to CoinDesk Bitcoin Price Index effective June 22, 2025","bullets":["Effective June 22, 2025, CoinDesk Indices added Bitfinex to the CoinDesk Bitcoin Price Index (XBX) after it met minimum liquidity requirements.","No constituent trading platforms were removed during the Index Provider's scheduled quarterly review.","The Index now includes seven platforms: Coinbase, Kraken, Bitstamp, Crypto.com, LMAX Digital, Bullish, and Bitfinex.","The Index Provider may change trading venues or calculation methods at any time, with scheduled quarterly reviews."],"urls":{"canonical":"https://secwatch.observer/filing/0000950170-25-089984","json":"https://secwatch.observer/filing/0000950170-25-089984.json","markdown":"https://secwatch.observer/filing/0000950170-25-089984.md","text":"https://secwatch.observer/filing/0000950170-25-089984.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/2015034/000095017025089984/0000950170-25-089984-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/2015034/000095017025089984/btc-20250622.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-18T21:30:41.790258+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"}