{"id": 4619, "prediction_verbatim": "META outperforms AMZN by >1.5% over 48h as insider accumulation signal propagates to momentum traders", "created_at": "2026-05-07 16:40:52", "direction": "up", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-05-09 16:41:44", "chain_hash": "d9c49a427a5dd987846e6d278ef1aa0f1b7055891315654f246e5d3e38364c9e", "chain_tx": "4pXKotDFrNYZSPz18kMqcbKjcPpNkbaUtxpwg1MQgsv1uhCojMKjAWf8gQmQHAwRvoR7sviU8p7JsjQSpfENxK35", "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."}