{"schema_version":"secwatch.filing_event.v1","accession":"0000950170-24-088560","form_type":"8-K","ticker":"ETCG","cik":"0001705181","company_name":"Grayscale Ethereum Classic Trust (ETC)","filed_at":"2024-07-31T23:59:59+00:00","discovered_at":"2026-05-14T18:03:14.182718+00:00","generated_at":"2026-05-31T14:26:17.866708+00:00","sec_items":["8.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.3,"calibrated_materiality_score":0.3,"confidence":"high","headline":"Grayscale Ethereum Classic Trust index adds Bitfinex, removes Crypto.com effective July 28","bullets":["CoinDesk Ether Classic Price Index (ECX) now includes Coinbase, Kraken, and Bitfinex.","Crypto.com removed from index for failing to meet minimum liquidity requirement.","Bitfinex added after meeting minimum liquidity criteria.","Index Provider may change trading venues at any time; quarterly reviews scheduled."],"urls":{"canonical":"https://secwatch.observer/filing/0000950170-24-088560","json":"https://secwatch.observer/filing/0000950170-24-088560.json","markdown":"https://secwatch.observer/filing/0000950170-24-088560.md","text":"https://secwatch.observer/filing/0000950170-24-088560.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1705181/000095017024088560/0000950170-24-088560-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1705181/000095017024088560/etcg-20240728.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-31T14:26:17.866708+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"}