more stuff

20260731-coldcard-entropy-crisis/notes.md

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+# 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: 

interesting/von_neumann_extractor.md

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+# Von Neumman extractor
+
+A very simple procedure to extract proper randomness out of a weak source of entropy such a biased dice.
+
+https://prefetch.eu/know/concept/von-neumann-extractor/
+
+You can use it to make true 128bits of randomness (for example, for a Bitcoin seed) with a crappy dice (as long as you through it randomly enough).

month.md

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-JULIO
+AGOSTO
 
 SALUD
-- Empezar a correr
+- Seguir con tendon
-- Hacer pesas una vez por semana
+- Hacer fuerza like a champ
 
 FAMILIA
-- Set up Bitcoin para padrinos
+- Aniversario con Eli
-- Comida con Dani
+- Comer con Dani a fin de mes
-- Quedar con Ana y Jose
+- Comprar muebles para Sofía
-- Maquina backups
-- Servidor email
 
 AMIGOS
-- Edu y Julia
+- Nacimiento Moreno
-- Guardar wallets bebes
+- Algo para Fede y Giselle
-- Seguir embarazo Andrea
+- Ver a Eli Dou
-- Seguir embarazo Moreno
+- Katya
-- Organizar cerveceo BBO
 
 DINERO
-- Eli setup sats
+- Reapuntalar setup chatochis
-- RoomPriceGenie please please please
+- Enseñar a Eli a manejar Bitbox
+- Hacer plan tentativo hacia la hipoteca
 
 OTROS
-- Organizar fotos en archivadores
+- Guardar wallets bebes
-- Renovar mando garaje
+- Archivar fotos
-- Organizar meetups Julio y Septiembre
+- Servidor de mail
 
+---
+- Comprar cinturon para Eli
+- Escribir la historia de Asturias
+- Pagar alquiler MOB
+- Piedras tio Joaquin
+- Empezar en Roompricegenie
+- Hacer compras/ventas mensuales
+- Regalo para Laia

months/202607.md

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+JULIO
+
+SALUD
+- Empezar a correr
+
+FAMILIA
+- Set up Bitcoin para padrinos
+- Maquina backups
+- Servidor email
+
+AMIGOS
+- Guardar wallets bebes
+
+DINERO
+- Eli setup sats
+
+OTROS
+- Organizar fotos en archivadores
+- Renovar mando garaje
+
+---
+
+- Quedar con Ana y Jose
+- Hacer pesas una vez por semana
+- Comida con Dani
+- Edu y Julia
+- RoomPriceGenie please please please
+- Organizar meetups Julio y Septiembre
+- Organizar cerveceo BBO
+- Seguir embarazo Andrea
+- Seguir embarazo Moreno

rotation_plan.md

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+## Material gathering
+
+- [ ] Four entropy seal containers
+- [X] Dice and a sheet to guide usage
+- [X] 5 usb drives, one with tails, another with ian coleman's and Marcel's dice repo
+- [ ] Keystone
+
+## Judging the Keystone
+
+- [ ] Reproduce build
+- [ ] Go through restoring it
+- [ ] Try usage in single sig with Sparrow
+- [ ] Try usage in multisg with Sparrow
+
+## Creating new key: Malatesta
+
+- [X] Use dice + Marcel's + Ian Coleman's checker to compose
+- [ ] Create physical backup
+- [X] Create digital backup
+
+## Creating new multisig
+
+- [ ] Fetch all three hardware wallets with their keys
+- [ ] Sit down with Sparrow and do it
+- [ ] Send some sats, test signing out with all keys
+- [ ] Backup the new key
+- [ ] Backup the new descriptor
+- [ ] Backup the sparrow file
+
+## Migrating from old multisig
+
+- [ ] Plan out all transactions, mapping utxos to address destinations
+- [ ] Execute
+- [ ] Update accounting
+
+## Preparing instructions for frens and fam
+
+- [ ] Write all documents and pack them in pendrives
+- [ ] Prepare seedbackups
+- [ ] Seal
+- [ ] Deliver
+
+## Final checklist
+
+- [ ] Old wallets, keys, xpubs, have been properly archived
+- [ ] Accounting has been updated
+- [ ] Sarria package is properly stored
+- [ ] Argentina package is properly stored
+- [ ] Fren package is properly stored 
+- [ ] Inheritance agents are holding their packages
+- [ ] Refresh with inheritance agents is scheduled
+- [ ] Instructions for wifey are properly stored

today.md

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 SALUD
-- [X] Tendon 1
+- [ ] Tendon 1
 - [ ] Tendon 2
-- [ ] Estirar brazo
-- [ ] Dopamina
 
 FAMILIA
+- [ ] medir zona Sofía para comprar muebles
+- [ ] Prepara sobre primer mes Sofia 417€
 
 AMIGOS
 
+
 DINERO
-- [ ] Tell team I'm out
+- [ ] la puta keystone
-
-
-- [ ] Brush up Deel details
-
-- [ ] Review Jose's PRs
-- [ ] Get my PR merged 
-- [ ] Audit which events Cala events we could drop
-- [ ] Review Tim's PR 
 
 OTROS
-- [ ] Carpetas padrinos 
+- [ ] departing thoughts from galoy 
-- [ ] A bit of go
+- [ ] hetero tupper
-- [ ] Operation saylor anniversary
-
-
 ---