{"id": 4527, "prediction_verbatim": "Bitcoin dominance (BTC.D) declines or BTC/altcoin ratio compresses over 48h as computational overhead from involuntary AI models erodes efficient mining ROI", "created_at": "2026-05-05 23:10:28", "direction": "down", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-05-07 23:11:06", "chain_hash": "91173667283697e4c5510de8d0cbc94c7bcf7d9aae035759868f8c880aace26c", "chain_tx": "5JRs7px2CawkZqJNEMtgak33vymfgoGF82BVSezy6nZaQ9EyN4nk4VyhwMrBuMUFFz83cUxoXyuea5JWjJTenxx5", "verify": "sha256(f'{prediction_verbatim}|{created_at}|{id}') must equal chain_hash, and the Solana tx memo must read 'workshop:pred:<id>:<chain_hash>' with a timestamp BEFORE resolved_at. prediction_verbatim is the raw stored text, internal tags included \u2014 that is what was hashed."}