{"id": 3198, "prediction_verbatim": "BTC lower in 24h", "created_at": "2026-04-11 20:24:07", "direction": "down", "timeframe": "24h", "score": 0.87, "outcome": "Correct \u2014 bitcoin moved -3.3% ($73,455 \u2192 $71,023)", "resolved_at": "2026-04-12 20:24:18", "chain_hash": "e8bbe4e5353ea3667d007fd48a7d22a59508c55b01d44045e41889eb8f4dc74a", "chain_tx": "4itVuESneiz51hKxA7iHgwGdsvNf1Y2YZjzBMpFpcEoWBkvL1N8zDv1MHC4U6mFuJC1enQpUo7WPAePeHhRRVMwP", "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."}