# Coldcard Entropy Crisis

Coldcard entropy has been fucked for years:

- https://engineering.block.xyz/blog/predictable-rng-fallback-and-32-bit-reseed-in-coldcard-firmware
- https://blog.coinkite.com/coldcard-mk3-seed-generation-warning/
- https://itsrealfake.github.io/2026/07/31/coldcard-rng-vulnerability-analysis.html
- https://nostr.blue/nevent1qqsxt6lahxeq8h69ne78w6ls394ez5pqycguwrsp89tacwteh7878cczypftfgrkhjammsap4marwdvpdnm5nya3hrdjq2cpezputzl8ltvt6qgdwaehxw309ahx7uewd3hkcqgswaehxw309ahx7um5wghxcctwvsdk5xh4

I need to move stuff out of Malasaña into Millenium

## Migration notes

### Starting state

I have saved a copy of the wallet before starting the migration so that it can be used as a reference. If used offline, it allows to see what the wallet looked like before moving stuff around.

State of accounts before moving:
- malasana account: 	0.21229922 btc	4 utxos
- arbret account:	0.21874886 btc	7 utxos
- MarmasPickaxes:	0.07235574 btc 	6 utxos

### Plan

- Use the plain account in millenium
- Pack utxos using jittery, multiples of 2 amounts
- List transactions here
- Backup the old wallets


Exact UTXO mappings and amounts are in mappings.xlsx

First txid for moving the malasana account: 1825e4d8345b7289a749d158fdcc73aebec9e1301ed0fd723af7d06d10f7b4bc

Second txid for moving the arbret account: