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16 docs tagged with "custody"

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Blockstream Green

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

Caravan

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

Casa

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

ColdCard

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.

Collaborative Custody Providers

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

Custody Models

Comparison of self-custody, multisig, collaborative custody, and custodial solutions with threat-model guidance for choosing the right approach.

JoinMarket

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.

Ledger

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

Multisig

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

Nunchuk

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

Samourai Wallet

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.

Specter Desktop

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

Trezor

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

Unchained Capital

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

Wasabi Wallet

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

Which Custody Model Fits My Threat Model?

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