{"id": 3459, "prediction_verbatim": "BTC price will be slightly lower in 24h.", "created_at": "2026-04-15 08:14:50", "direction": "down", "timeframe": "24h", "score": 0.27, "outcome": "Wrong \u2014 bitcoin moved +1.0% ($73,800 \u2192 $74,574)", "resolved_at": "2026-04-16 08:15:14", "chain_hash": "d9f6677f11e18afd377ffb136993c580a4e115bee833ce2b34276de84351159d", "chain_tx": "4oLzJdWEL5wFV1j5dos1KzJySg7GBf6LMhrkNNvu7DeaYZYVdgd1F2PZvsTsNZsnUsFtjCvqn2X3ctA3AXw77QyJ", "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."}