{"id": 4287, "prediction_verbatim": "German DAX index closes lower within 48h (tariff-sensitive automotive and industrial stocks repricing downward)", "created_at": "2026-05-01 17:09:43", "direction": "down", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-05-03 17:15:09", "chain_hash": "310be58345f1e258f9bee9bd44defc6f29833368ae71ad8ea8bde1f188ced9f3", "chain_tx": "Kw9Jq2WSNKJjXZDLTZ5N3B7S3y5h6kWNSVnrM1itPjiMAgNiad6sNrQeLscVaM8kDUHRSmcp2bzgm8Vqr4jh819", "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."}