{"ledger":"ZARQ Prediction Ledger — live","chain_head":"e9ea3be2cd74f2489880adb04e5b9a58411b97453b21a4b95182aa2b68a02b27","count":51,"last_append":"2026-07-21T11:04:37.145023+00:00","genesis":"0000000000000000000000000000000000000000000000000000000000000000","algorithm":"chain_hash = sha256(prev_hash + content + timestamp)","source":"https://zarq.ai/ledger"}