{"id": 3682, "prediction_verbatim": "Anthropic Claude Opus monthly active users higher in 48h", "created_at": "2026-04-18 07:38:36", "direction": "up", "timeframe": "48h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-04-20 07:39:13", "chain_hash": "278e6162bef10b37b7fde9ad90de4b4292a17a43839c36aa49ff673b2717e11e", "chain_tx": "a8MpqZcMZ1saywQLp8gGBEhZSVVKL7YC4A3kCw5sZZgwb3WowJ6mqf8b1Su27LCT6EEzooRqh3mDJf31Smonjih", "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."}