Bitcoin Safe

Long-term Bitcoin savings made Easy

⚠️ Currently ALPHA -- Use only on regtest / testnet / signet ⚠️

Features

• Easy Multisig-Wallet Setup
  • Step-by-Step instructions with a PDF backup sheet
  • test signing with all hardware signer
• Simpler address labels by using categories (e.g. "KYC", "Non-KYC", "Work", "Friends", ...)
  • Automatic coin selection within categories
• Sending for non-technical users
  • 1-click fee selection
  • Automatic merging of small utxos when fees are low
• Collaborative:
  • Wallet chat and sharing of PSBTs (via nostr)
  • Label synchronization between trusted devices (via nostr)
• 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, (more upon request)
• Fast:
  • Electrum server connectivity
  • planned upgrade to Compact Block Filters for the Bitcoin Safe 2.0 release
• Secure: No seed generation or storage (on mainnet).
  • A hardware signer/signing device for safe seed storage is needed (storing seeds on a computer is reckless)
  • Powered by BDK

Preview

Sending

Setup a multisig wallet

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
  • Label import and export using BIP329
  • Label import from Electrum wallet
  • 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
  • Animated QR codes including BBQr and legacy formats

• 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, (more upon request)

• Transaction / PSBT Creation

  • 1-click fee selection and mempool block preview
  • Automatic merging of small 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

• 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.

TODOs for beta release

• Add more pytests

Installation from Git repository

Ubuntu, Debian, Windows

• 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