{"id":15643,"date":"2025-09-02T16:54:36","date_gmt":"2025-09-02T14:54:36","guid":{"rendered":"https:\/\/wsj-crypto.com\/?p=15643"},"modified":"2025-09-02T16:54:36","modified_gmt":"2025-09-02T14:54:36","slug":"opensats-grant-ignites-bitcoin-safes-launch-of-a-hardware-focused-secure-multisig-wallet","status":"publish","type":"post","link":"https:\/\/wsj-crypto.com\/index.php\/2025\/09\/02\/opensats-grant-ignites-bitcoin-safes-launch-of-a-hardware-focused-secure-multisig-wallet\/","title":{"rendered":"OpenSats Grant Ignites Bitcoin-Safe’s Launch of a Hardware-Focused Secure Multisig Wallet"},"content":{"rendered":"

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Bitcoin-Safe<\/a>, a publicly available Bitcoin savings wallet, is now launched, tailored for families, individuals, and enterprises aiming for safe, enduring Bitcoin preservation. Emphasizing multisig security and necessitating hardware wallets for mainnet transactions, it sets itself apart from other desktop wallets such as Electrum and Sparrow. Benefiting from a one-year OpenSats grant received in March 2025, Bitcoin-Safe merges solid security with a revamped user interface in its newest version, 1.5.0, which was released on September 1, 2025.<\/p>\n

Development and OpenSats Endorsement<\/h3>\n

Created for more than two and a half years by Andreas Griffin, Bitcoin-Safe seeks to make multisig configurations easier and lessen dependence on Electrum servers. \u201cI initiated this wallet project over two and a half years ago with two objectives: to streamline multisig and to eliminate the necessity for Electrum servers,\u201d Griffin stated in a conversation with Bitcoin Magazine. The OpenSats<\/a> grant, active from March 2025 to March 2026, backs these endeavors. Built on the Bitcoin Dev Kit (BDK), the repository’s open-source code can be examined on GitHub<\/a>, and downloadable clients are freely accessible at bitcoin-safe.org\/download, functioning with Windows, macOS, and Linux.<\/p>\n

Multisig, Hardware Wallet Protection and Coin Management<\/h3>\n
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Bitcoin-Safe mandates hardware wallets for the mainnet, banning software seeds to lessen security vulnerabilities. \u201cFor savings, there is simply no alternative to a hardware wallet,\u201d Griffin asserted, highlighting its compatibility with leading hardware devices through QR, USB, or SD card connections. This distinguishes Bitcoin-Safe from wallets that permit software seeds, emphasizing security for significant savings while reducing \u2018foot guns\u2019 \u2013 attributes that users may unintentionally misuse.<\/p>\n

The wallet’s multisig setup wizard produces PDFs containing wallet descriptors, as well as tests for sending and receiving for validation. \u201cOnce you complete this wizard, you can be confident that it\u2019s correctly configured,\u201d Griffin remarked. This guarantees a dependable setup, making multisig implementation straightforward without compromising safety.<\/p>\n

Employing the Nostr protocol, Bitcoin-Safe synchronizes transaction and address labels across devices using end-to-end encryption. \u201cI developed a protocol atop Nostr to connect these computers and synchronize the labels effortlessly,\u201d Griffin observed. Participants in multisig can share Partially Signed Bitcoin Transactions (PSBTs) with a single click, while relays retain encrypted communications for asynchronous retrieval.<\/p>\n

Coin classifications distinguish funds, such as KYC exchange withdrawals and private currencies, to avoid unintended transaction associations. \u201cYou must identify the source of the funds to prevent accidental linking,\u201d Griffin noted, reinforcing user confidentiality.<\/p>\n

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User Interface and Experience<\/h3>\n

Version 1.5.0 presents a fresh interface, crafted with @deSign-r<\/a>. \u201cThe designer who joined the initiative brings tremendous value,\u201d Griffin stated. Features comprise a sidebar for managing several wallets, revamped transaction views for sending and signing PSBTs, and a mempool visualization depicting block and fee information.<\/p>\n

The wallet incorporates keyboard shortcuts, tooltips, and explicit error notifications. Bug remedies enhance performance, ensuring usability for both novice and proficient users.<\/p>\n

Bitcoin-Safe facilitates real-time conversion for 123 fiat currencies, embedded within the interface. It also translates Bitcoin to gold or silver values in ounces and grams. Real-time mempool alerts inform users about transaction propagation. \u201cIt\u2019s an opt-in feature for existing users and an opt-out for new installations,\u201d Griffin commented, along with adjustable network preferences.<\/p>\n

Users can access multiple wallets with a single encryption passphrase. \u201cWhen multiple wallets utilize the same encryption password, users need to input it just once,\u201d Griffin clarified. Nostr\u2019s Chat&Sync feature allows remote PSBT coordination for multisig participants.<\/p>\n

Community and Accessibility<\/h3>\n

Bitcoin-Safe accommodates languages like English, Chinese, and Spanish, with translations managed via Weblate. Users can experiment with tBTC, report issues, or contribute via Lightning or on-chain donations. Community interaction occurs through Chorus.community and X accounts (@BitcoinSafe, @BitcoinSafeCN), with documentation accessible at bitcoin-safe.org.<\/p>\n

Future Development: Compact Block Filters<\/h3>\n

Bitcoin-Safe intends to incorporate compact block filters in 2025 to supersede Electrum servers. \u201cMy objective is to replace [Electrum servers] with compact block filters to retrieve blockchain data directly from Bitcoin Core nodes,\u201d Griffin explained, aiming for improved privacy and autonomy from servers.<\/p>\n<\/p><\/div>\n


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“`html Bitcoin-Safe, a publicly available Bitcoin savings wallet, is now launched, tailored for families, individuals, and enterprises aiming for safe, enduring Bitcoin preservation. Emphasizing multisig security and necessitating hardware wallets for mainnet transactions, it sets itself apart from other desktop wallets such as Electrum and Sparrow. 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