{"id": 3139, "prediction_verbatim": "EU airline stock indices will decline in the next 24h due to fuel supply concerns.", "created_at": "2026-04-10 20:23:48", "direction": "down", "timeframe": "24h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-04-12 08:24:14", "chain_hash": "2aafe4da2f98b31361c9f90cd7d6c9ffc727cc02fb11dc2e53f1a4dac791ef69", "chain_tx": "23GPzeCCVjsQX9zQLaxMX48nt2SmU92KnPTRV6gMrZ8cECW9ayAVFTbpAof4GTsW1BzGu7M6kcmES3v7YtghjJga", "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."}