{"id":98933,"date":"2025-09-02T07:49:59","date_gmt":"2025-09-02T07:49:59","guid":{"rendered":"https:\/\/neclink.com\/index.php\/2025\/09\/02\/opensats-grant-fuels-bitcoin-safes-secure-multisig-wallet-launch-with-hardware-focus\/"},"modified":"2025-09-02T07:49:59","modified_gmt":"2025-09-02T07:49:59","slug":"opensats-grant-fuels-bitcoin-safes-secure-multisig-wallet-launch-with-hardware-focus","status":"publish","type":"post","link":"https:\/\/neclink.com\/index.php\/2025\/09\/02\/opensats-grant-fuels-bitcoin-safes-secure-multisig-wallet-launch-with-hardware-focus\/","title":{"rendered":"OpenSats Grant Fuels Bitcoin-Safe’s Secure Multisig Wallet Launch With Hardware Focus"},"content":{"rendered":"


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Bitcoin-Safe<\/a>, an open-source Bitcoin savings wallet, is now available, designed for families, individuals, and companies seeking secure, long-term Bitcoin storage. Focused on multisig security and requiring hardware wallets for mainnet operations, it distinguishes itself from other desktop wallets like Electrum and Sparrow. Supported by a one-year OpenSats grant awarded in March 2025, Bitcoin-Safe combines robust security with a redesigned user interface in its latest version, 1.5.0, released on September 1, 2025.<\/p>\n

Development and OpenSats Support<\/h3>\n

Developed for over two and a half years by Andreas Griffin, Bitcoin-Safe aims to simplify multisig setups and reduce reliance on Electrum servers. \u201cI started over two and a half years ago with this wallet and I had two goals: to make multisig easier and to not need to rely on Electrum servers,\u201d Griffin told Bitcoin Magazine. The OpenSats<\/a> grant, running from March 2025 to March 2026, supports these efforts. Built on Bitcoin Dev Kit (BDK), the wallet\u2019s open-source code is auditable on GitHub<\/a> and installable clients are available for free at bitcoin-safe.org\/download, compatible with Windows, macOS, and Linux.<\/p>\n

Multisig, Hardware Wallet Security and Coin Control<\/h3>\n
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Bitcoin-Safe enforces hardware wallets for mainnet, prohibiting software seeds to mitigate security risks. \u201cFor savings, there is just no way around a hardware wallet,\u201d Griffin stated, emphasizing compatibility with major hardware devices via QR, USB, or SD card. This sets Bitcoin-Safe apart from wallets allowing software seeds, prioritizing security for significant savings and minimizing \u2018foot guns\u2019 \u2013 features that users can easily hurt themselves with.<\/p>\n

The wallet\u2019s multisig setup wizard generates PDFs with wallet descriptors, including send and receive tests for verification. \u201cAfter you\u2019re done with this wizard, you can be sure that it\u2019s set up correctly,\u201d Griffin said. This ensures reliable configuration, making multisig accessible without compromising security.<\/p>\n

Using the Nostr protocol, Bitcoin-Safe syncs transaction and address labels across devices encrypted end to end. \u201cI created a protocol on top of Nostr to link these computers and synchronize the labels seamlessly,\u201d Griffin noted. Multisig participants can share Partially Signed Bitcoin Transactions (PSBTs) with one click, with relays storing encrypted messages for asynchronous access.<\/p>\n

Coin categories separate funds, such as KYC exchange withdrawals and private coins, to prevent unintended transaction linkages. \u201cYou have to select the source of the funds, so you don\u2019t accidentally link them,\u201d Griffin said, supporting user privacy.<\/p>\n

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User Interface and Experience<\/h3>\n

Version 1.5.0 introduces a new interface, developed with @deSign-r<\/a>. \u201cThe designer who joined the project really contributes massively,\u201d Griffin stated. Features include a sidebar for managing multiple wallets, updated transaction views for sending and signing PSBTs, and a mempool visualization showing block and fee data.<\/p>\n

The wallet adds keyboard shortcuts, tooltips, and clear error messages. Bug fixes improve functionality, ensuring accessibility for novice and advanced users.<\/p>\n

Bitcoin-Safe supports real-time conversion for 123 fiat currencies, integrated into the interface. It also converts Bitcoin to gold or silver values in ounces and grams. Real-time mempool alerts notify users of transaction propagation. \u201cIt\u2019s an opt-in feature for existing users, opt-out for new installations,\u201d Griffin said, with customizable network settings.<\/p>\n

Users can unlock multiple wallets with a single encryption password. \u201cWhen multiple wallets share the same encryption password, users need to enter it only once,\u201d Griffin explained. Nostr\u2019s Chat&Sync feature enables remote PSBT coordination for multisig participants.<\/p>\n

Community and Accessibility<\/h3>\n

Bitcoin-Safe supports languages like English, Chinese, and Spanish, with translations via Weblate. Users can test with tBTC, report bugs, or donate via Lightning or onchain. Engagement occurs through Chorus.community and X accounts (@BitcoinSafe, @BitcoinSafeCN), with documentation at bitcoin-safe.org.<\/p>\n

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

Bitcoin-Safe plans to integrate compact block filters in 2025 to replace Electrum servers. \u201cMy plans are to replace [Electrum servers] with compact block filters to fetch blockchain data directly from Bitcoin Core nodes,\u201d Griffin said, aiming for enhanced privacy and server independence.<\/p>\n<\/p><\/div>\n


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Bitcoin-Safe, an open-source Bitcoin savings wallet, is now available, designed for families, individuals, and companies seeking secure, long-term Bitcoin storage. Focused on multisig security and<\/p>\n","protected":false},"author":1,"featured_media":98934,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[151],"tags":[],"class_list":["post-98933","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-crypto"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/neclink.com\/index.php\/wp-json\/wp\/v2\/posts\/98933","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/neclink.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/neclink.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/neclink.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/neclink.com\/index.php\/wp-json\/wp\/v2\/comments?post=98933"}],"version-history":[{"count":0,"href":"https:\/\/neclink.com\/index.php\/wp-json\/wp\/v2\/posts\/98933\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/neclink.com\/index.php\/wp-json\/wp\/v2\/media\/98934"}],"wp:attachment":[{"href":"https:\/\/neclink.com\/index.php\/wp-json\/wp\/v2\/media?parent=98933"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/neclink.com\/index.php\/wp-json\/wp\/v2\/categories?post=98933"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/neclink.com\/index.php\/wp-json\/wp\/v2\/tags?post=98933"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}