21 docs tagged with "custody"

Template inheritance guide for a 3-of-5 SeedSigner+ multisig wallet — covers documentation, key distribution, recovery steps, and signing flow for heirs.

Instructions for someone holding a key in a multisig wallet — what the key is, how to safeguard it, and what to do when called on to sign or recover.

Blockstream Green is a mobile and desktop Bitcoin wallet with optional 2FA multisig and hardware wallet integration.

Open-source multisig coordinator by Unchained Capital. Web-based tool for building and managing multisig transactions without installing software.

Fee-based collaborative custody service providing managed multisig vaults and personal security consulting.

ColdCard is a hardware wallet for advanced users prioritizing security verification, air-gapped signing, and open-source principles. Manufactured by Coinkite, widely used in multisig setups.

Side-by-side evaluation of Casa, Unchained, Nunchuk, and other collaborative custody providers covering multisig quorums, key management, recovery flows, and fees.

The spectrum of bitcoin custody ranges from full self-custody to fully custodial exchange wallets. The right model depends on technical ability, threat model, and need for inheritance or recovery.

Jade DIY is Blockstream's open-source firmware for the Blockstream Jade hardware wallet, made available for installation on compatible off-the-shelf hardware. The project lets users build and verify their own Jade-compatible signing device from generic components.

Decentralized CoinJoin marketplace. Uses a maker-taker model where liquidity providers (makers) earn fees for providing inputs to CoinJoin transactions, while privacy seekers (takers) pay for the service.

Krux is open-source firmware that enables anyone to build a Bitcoin signing device from off-the-shelf parts. It runs on cheap, general-purpose microcontrollers (e.g. M5StickV, Maix Amigo, Maix Dock) and turns them into air-gapped signing devices.

Ledger is a hardware wallet manufacturer using secure element (SE) chips to protect private keys. One of the most widely sold hardware wallets globally.

Deep dive into n-of-m multisignature schemes, hardware wallet coordination, deterministic wallets (BIP-85), and popular multisig coordinators (Sparrow, Nunchuk, CARAVAN).

Mobile-first Bitcoin wallet focused on multisig and collaborative custody. Designed for shared vaults and inheritance planning.

Privacy-focused Bitcoin wallet for Android, built around on-chain transaction privacy. The project was the origin of several privacy tools later adopted across the ecosystem.

Open-source DIY multisig coordinator for Bitcoin. Runs as a desktop application with optional hardware wallet integration.

Specter DIY is an open-source, do-it-yourself hardware wallet project from the Specter suite. It turns commodity hardware into an air-gapped signing device that pairs with Specter Desktop for multisig and single-sig custody.

Trezor is a hardware wallet developed by SatoshiLabs. The first commercial hardware wallet (2014), known for fully open-source firmware.

Collaborative custody provider and financial services company focused on bitcoin-native products.

Privacy-focused Bitcoin desktop wallet with built-in CoinJoin coordination by default. Uses the WabiSabi credential protocol for CoinJoin transactions.

Decision framework for choosing between single-sig, multisig, collaborative custody, and custodial solutions mapped to specific threat models and capability levels.