The serverSeeds should be a pure sha256 chain without mixing the clientSeed in. Else you can't really give us the end of the chain ahead of the clientSeed
Soedit:misunderstood. true, how can you be giving us the end value, if you yourself dont know the client seed OP?
Yes I noticed the misunderstanding. Terminology is not clear. I would call the start of the chain 'server secret' and then every element of the chain is a server seed for a specific game.
Anyway, OP, doesnt this mean you will need to generate such chains every week? seems unpractical, both to you and to players. how many rolls did you pregenerate?
I think OP wanted to generate a chain of 10M seeds which would last ~6 years. OP obviously you already generated the chain, because you already told us the end. So what's 'gamesToGenerate' in reality?