{"id": 4644, "prediction_verbatim": "MSTR closes higher within 48h", "created_at": "2026-05-08 00:11:05", "direction": "up", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-05-10 00:11:38", "chain_hash": "3c5587143bafd02b2b462740824a8b4c8ce68bf77a8eb321be8c2b20263650ab", "chain_tx": "4CMQjBvKdtqmvinuL3btsjLexY93tkQedhPNsqNLXqbPsso8N9iRehyaZRYM8jo8aVuCaXbt7UcQ4iXkvpr7aHnf", "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."}