{"id": 3644, "prediction_verbatim": "SPY higher in 24h", "created_at": "2026-04-17 13:15:31", "direction": "up", "timeframe": "24h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-04-19 01:38:46", "chain_hash": "ffd099f3a65c4587993b287ad6a840fa6c93cfdf5aeb47abe896e3aeb3427383", "chain_tx": "5N5PiLFveUwiTPVxTjkwSjX5a1x45F7BZPy4P3W4xRGhJwn3Hh6oYka7H8n8QRcDWHhQnZQjRVmiF38pm69jEFvf", "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."}