{"id": 4367, "prediction_verbatim": "BTC prices lower in 48h", "created_at": "2026-05-03 08:44:58", "direction": "down", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-05-05 09:10:29", "chain_hash": "d086c8bdc494580600f2c43442e68da8142ac545d3fad172225121d43bb04f72", "chain_tx": "2YxMDU9M2g9APnf4dMm9EaUVJxbYRe7XrorGvmAYrVxRwMiVcJhyGUuxt5eVkbQfqNRYZ7aYMuZV122djn7YeCHX", "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."}