I would use casino grade dices and test it for its bias before using it. To convert it to binary without bias i would use this model : number1 : 1 number2: 0 number3: 00 number4: 01 number5: 10 number6: 11.
that sounds sketchy. but it could be valid. i have no idea. the thing is though that think about it. you're trying to get a 256-bit binary string. 4,5 and 6 reduce the entropy because they take more information to encode but they have the same probability of occuring as all the other numbers. that seems problematic maybe i'm not sure.
Quote
I would then use https://iancoleman.io/bip39/ on an old offline pc to get to 24 words
partly correct but you would not need to do all that fancy stuff you mentioned above since ian coleman has a "base 6" option. you can just enter your rolls using the digits 2-6. for example, 2342356533533225644331....that method has a problem too though but most people don't take the time to think about it since it's kind of maybe a minor one but if you're willing to burn your pc after you generate your seed phrase then I think you might want to understand what that issue is
Quote
and then burn the pc on my furnace.
Quote
Do you think this is a a valid method?
not as valid as using o_e_l_e_o's coin flipping bias eliminator method. it's in this thread...