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r/Bitcoin: interactive simulator mapping dice rolls to a BIP39 seed

reddit-dice-entropy-simulator

https://www.reddit.com/r/Bitcoin/comments/1vl4ku3/interactive_simulator_how_dice_rolls_become_a/

Organisation
reddit
Evidence role
Community discussion
Published
not established
Source changes
0
Detected differences
0
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0
Copies held
1

Every check is recorded, including checks that found no text change. A detected edit is therefore bounded between two checks. The publisher's exact save time is not observable from this record. Last checked .

  1. Earliest copy held Current
    seen · Captured here 1,435 chars
    Extracted text as captured 
    post: 1vl4ku3
author: AnaMoneyro
created_utc: 1786414324
title: Interactive simulator: how dice rolls become a BIP39 seed (and what 40 bits of entropy actually means)
body:
Made an interactive thing to understand where seed entropy actually comes from, after reading about the Coldcard incident. Runs client-side, no tracking.  


comment: p30lf5o
parent: t3_1vl4ku3
author: ivme
created_utc: 1786447161
edited: false
body:
Great website

comment: p31k74x
parent: t3_1vl4ku3
author: Ok_Knowledge_4977
created_utc: 1786458029
edited: false
body:
Nice 

comment: p31qihn
parent: t3_1vl4ku3
author: toxicacd
created_utc: 1786459711
edited: false
body:
I thought the hashing should only be done for the checksum bits, which should then be appended to the – non-hashed – entropy? 

comment: p31ufqv
parent: t1_p31qihn
author: AnaMoneyro
created_utc: 1786460739
edited: false
body:
You're right about BIP39 itself, the entropy goes into the words unhashed, and SHA-256 only produces the checksum bits.

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