{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-25-215454","form_type":"8-K","ticker":"ETCG","cik":"0001705181","company_name":"Grayscale Ethereum Classic Trust (ETC)","filed_at":"2025-09-24T23:59:59+00:00","discovered_at":"2026-05-14T18:02:44.723763+00:00","generated_at":"2026-05-17T05:47:56.679406+00:00","sec_items":["8.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.15,"calibrated_materiality_score":0.15,"confidence":"high","headline":"Grayscale Ethereum Classic Trust adds Crypto.com to index constituent trading platforms","bullets":["CoinDesk Indices added Crypto.com to the Ether Classic Price Index effective Sept 21, 2025.","No trading platforms were removed during the scheduled quarterly review.","Current index constituents are Coinbase, Kraken, Bitfinex, and Crypto.com.","Crypto.com was added after meeting the Index Provider's minimum liquidity requirement."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-25-215454","json":"https://secwatch.observer/filing/0001193125-25-215454.json","markdown":"https://secwatch.observer/filing/0001193125-25-215454.md","text":"https://secwatch.observer/filing/0001193125-25-215454.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1705181/000119312525215454/0001193125-25-215454-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1705181/000119312525215454/etcg-20250921.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-17T05:47:56.679406+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"}