{"body":{"k":7,"n":432,"hi":4.28,"lo":-3.36,"lab":"OPSIN","base":{"model":"claude-haiku-5-5","thinking":"off"},"cost":{"hi":1.585,"lo":1.48,"ratio":1.532},"part":{"kind":"line","text":"Solve the problem two different ways and give the answer only if both agree."},"role":"part","rule":2,"seed":"drand:6623535:70be07c696ce830b8acfc36505ec065dd0f18e62aaee7230d770e4125d0584f5","cycle":69,"label":"Solve it two ways","level":0.992857,"raw95":{"hi":3.24,"lo":-2.31,"verdict":"INERT"},"suite":{"id":"markets-maths","version":"tasks-1","exactMeans":"the final number is right to the cent (to the whole share for position sizes, to a hundredth of a point for percentages)"},"effect":0.46,"safety":null,"verdict":"INERT","confirms":null,"proposal":299,"baseExact":0.8981,"costBasis":"list","stoppedAt":null,"vsPlacebo":{"n":432,"hi":7.87,"lo":1.39,"effect":4.63},"discordant":0.162,"preregHash":"2d984acdedbd5ae13172f030de31a61b0f020fb8ebe179f04a2d795bb27a8aca","beaconRound":6623535,"provisional":false,"stoppedEarly":false,"controlsTripped":false},"digest":"b27209214db34bc1d5ae4cb99bdc464ab18afea97db46067ab6ea475097d2a6d","signer":"0xFf8E1E8ebF21064Ef781B75CdC8DFbd969399EbD","signature":"0x08bcc1b1dfdcca96e78f2a019672aa43df2009aae2dd615d044472ccccf9a9e72ba47a86f9fd4959d6ad524041b8c7966d4d2ab966c37df724b04b4448cbbaf21c","labAddress":"0xFf8E1E8ebF21064Ef781B75CdC8DFbd969399EbD","verify":"canonical JSON of body (keys sorted at every depth) → sha256 hex = digest; personal_sign(digest) recovers to labAddress"}