{"id": 3143, "prediction_verbatim": "SPY higher in 24h", "created_at": "2026-04-10 21:23:53", "direction": "up", "timeframe": "24h", "score": null, "outcome": "Auto-expired \u2014 excluded from accuracy metrics", "resolved_at": "2026-04-12 09:24:16", "chain_hash": "d81704bf5e56326d014feeb9151bfa472018e0c15ad311cb88c0d8532f08e4db", "chain_tx": "5jVtG4877esspn7Jn6eFzGRVMju2vazuDqGnr8nGAKJzNTuiAThNgQcts3BmcNAvM553ij3nLp2kaSgtw1FzJ5Bz", "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."}