Bitcoin Safe

Long-term Bitcoin savings made Easy

BETA Version -- Use with Caution

Features

• Easy Multisig-Wallet Setup
  • Step-by-Step instructions for a secure MultiSig setup with PDF backup sheets
  • Test transactions ensure that all hardware signers are ready
  • Full support for Coldcard, Coldcard Q, Bitbox02, Blockstream Jade, Trezor, Foundation Passport, Keystone, Specter DIY, using QR, USB, and SD-card
• Secure: Hardware signers only
  • All wallets require hardware signers/wallets for safe seed storage
  • Powered by BDK
• Multi-Language:
  • 🇺🇸 English, 🇨🇳 Chinese - 简体中文, 🇪🇸 Spanish - español de España, 🇯🇵 Japanese - 日本語, 🇷🇺 Russian - русский, 🇵🇹 Portuguese - português europeu, 🇮🇳 Hindi - हिन्दी, Arabic - العربية, 🇮🇹 Italian - italiano, 🇫🇷 French - Français, 🇩🇪 German - Deutsch, (more upon request)
• Simpler address labels by using categories (e.g. "KYC", "Non-KYC", "Work", "Friends", ...)
  • Automatic coin selection within categories
  • Transaction flow diagrams, visualizing inputs and outputs, click on inputs and output to trace the money flow
• Sending for non-technical users
  • 1-click fee selection via mempool-blocks
  • Automatic merging of utxos when fees are low
• SyncChat:
  • Encrypted cloud backup (via nostr) of labels
  • Label synchronization between different computers
  • Wallet chat and PSBTs sharing between different computers
• Fast:
  • Electrum server syncing
  • planned upgrade to Compact Block Filters for the Bitcoin Safe 2.0 release

Preview

Setup a multisig wallet

Transaction exploring via the money flow diagram

Sending

PSBT sharing with trusted devices

Label Synchronization with trusted devices

Easy search across wallets

Full Features List

• Import and Export Capabilities

  • CSV export for all lists
  • CSV import for batch transactions
  • Label import and export using BIP329
  • Label import from Electrum wallet
  • Export of the money flow diagram to svg
  • Drag and drop for Transactions, PSBTs, and CSV files

• Wallet Features

  • Simplified address labeling using categories like KYC, Non-KYC, Work, Friends
  • Cancel unconfirmed transactions (via Replace-by-Fee)
  • Bump fee on transactions (via Replace-by-Fee)
  • Encrypted wallet storage
  • Backup PDF with Descriptor (Text and QR code)

• Hardware Signer Connectivity

  • MicroSD (files)
  • USB
  • QR codes (enhanced QR code detection for Laptop cameras)
  • Animated QR codes including Coldcard/BBQr and UR format

• Search and Filtering Options

  • Fast filtering across txids, utxos, labels, dates, amounts, categories
  • Search across all open wallets, txids, utxos, labels, dates, amounts, categories

• Languages

  • 🇺🇸 English, 🇨🇳 Chinese - 简体中文, 🇪🇸 Spanish - español de España, 🇯🇵 Japanese - 日本語, 🇷🇺 Russian - русский, 🇵🇹 Portuguese - português europeu, 🇮🇳 Hindi - हिन्दी, Arabic - العربية, 🇮🇹 Italian - italiano, 🇫🇷 French - Français, 🇩🇪 German - Deutsch, (more upon request)

• Transaction / PSBT Creation

  • 1-click fee selection and mempool block preview
  • Automatic merging of utxos when fees are low
  • Highlighting of own addresses

• Security and Reliability

  • No seed generation or storage on mainnet
  • Seed storage requires a separate hardware signer
  • Update notifications and signature verification
  • Powered by Bitcoin Development Kit (BDK)

• Ease of Use for Multisig Wallets

  • Simplified setup for multisig wallets, including step-by-step instructions and PDF backup sheet
  • Test signing with all hardware signers
  • Collaborative wallet management including chat and PSBT sharing via nostr and label synchronization between trusted devices
  • Optional custom nostr server

• Upcoming Features

  • For the 2.0 Release
    • Compact Block Filters by default
      • Compact Block Filters are fast and private
      • Compact Block Filters (bdk) are being worked on, and will be included in bdk 1.1. For now RPC, Electrum and Esplora are available, but will be replaced completely with Compact Block Filters.

Installation from Git repository

Ubuntu, Debian, Windows

Install dependencies:

sudo apt install  qt6-tools-dev-tools libqt6*

• Install poetry and run bitcoin_safe

  git clone https://github.com/andreasgriffin/bitcoin-safe.git
  cd bitcoin-safe
  pip install poetry  && poetry install && poetry run python -m bitcoin_safe

Mac

• Run bitcoin_safe

  git clone https://github.com/andreasgriffin/bitcoin-safe.git
  cd bitcoin-safe
  python3 -m pip install poetry && python3 -m poetry install && python3 -m poetry run python3 -m bitcoin_safe

• Optional: dependency zbar

  xcode-select --install
  /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
  brew install zbar 

Development

• Run the precommit manually for debugging

poetry run pre-commit run --all-files

Regtest docker environement with electrs and mempool

• install docker

# see https://docs.docker.com/engine/install/ubuntu/

• setting up a regtest environment in docker + mempool instance

curl https://getnigiri.vulpem.com | sudo bash # see https://nigiri.vulpem.com/#install
sudo nigiri start
xdg-open http://localhost:5000/

• This creates
  • esplora localhost:3000 electrs localhost:50000
  • and a gui block explorer at http://localhost:5000
• Setup mempool instance

sudo apt install docker-compose
git clone https://github.com/ngutech21/nigiri-mempool.git

pushd nigiri-mempool
sudo docker-compose up -d
sleep 10
# this is needed because the database needs time to start up 
sudo docker-compose up -d
popd
xdg-open http://localhost:8080/

# if the mempool is endlessly loading, then get the debug output with
sudo docker-compose logs -f mempool-api

• this opens a mempool at http://localhost:8080/

Control the Regtest environment

• get coins to an address

nigiri rpc generatetoaddress 1 bcrt1qgsnt3d4sny4w4zd5zl9x6jufc5rankqmgphyms9vz0ds73q4xfms655y4c # mine blocks

# or use the internal faucet
nigiri faucet bcrt1qgsnt3d4sny4w4zd5zl9x6jufc5rankqmgphyms9vz0ds73q4xfms655y4c 0.01

• Installation from PyPi

Ubuntu, Debian, Windows

• Install poetry and run bitcoin_safe

  pip install bitcoin-safe
  python -m bitcoin_safe

Mac

• Run bitcoin_safe

  python3 -m pip install bitcoin-safe
  python3 -m bitcoin_safe