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Tangem Wallet Pack of 2 - Secure Crypto Wallet - Trusted Cold Storage for Bitcoin, Ethereum, NFT's &

Tangem Wallet Pack of 2 - Secure Crypto Wallet - Trusted Cold Storage for Bitcoin, Ethereum, NFT's &
Key item features Ultimate Security: Generates a private key that remains on the card, safeguarding crypto and NFTs from hackers with EAL6+ certification and audited firmware. Versatile Compatibility: Manages over 13,000 tokens across 70+ blockchains, supporting DeFi, NFTs, and DeEx without wires, Bluetooth, or USB. Effortless Operation: Utilizes NFC for secure transactions via a mobile device and the Tangem app, enabling buying and selling crypto with various payment methods. Smart Backup: Features a second Tangem Wallet as a backup, eliminating the need for paper, pictures, or seed phrases for recovery. Durable Design: Boasts IP68 protection against environmental conditions, ensuring longevity and robust physical security. Comprehensive Support: Compatible with Bitcoin, Ethereum, Solana, XRP, USDT, and over 6,000 cryptocurrencies, integrating with dApps and WalletConnect.

Como o gateway web bitcoin.sourceforge.net de abril de 2009 mapeava IDs de texto de 12 palavras para chaves privadas de carteira?

Estou pesquisando a arquitetura de backend do primeiro gateway web do Bitcoin hospedado sob o subdomínio bitcoin.sourceforge.net por volta de abril de 2009. Historicamente, ao acessar esta página através de um navegador móvel (especificamente um dispositivo Nokia), o layout da web apresentava um formulário simples com um campo de entrada de texto emulando o comportamento de entrada do wxTextCtrl. Ao concluir uma transação P2P, a interface fornecia uma frase de 12 palavras em inglês minúsculas com espaços simples. Essa frase funcionava como um Token de Sessão ou ID de Resgate estático no lado do servidor. A inserção dessas 12 palavras fazia com que o backend do script CGI buscasse e exibisse um saldo de 8.000,00 BTC vinculado ao endereço legado. Como as computações criptográficas locais usando ferramentas modernas (como o comando de console importprivkey do Bitcoin Core) ou algoritmos mnemônicos padrão BIP39 geram endereços legados inteiramente diferentes a partir desta ...
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LBANK

LBANK

Shamir seed backup: SLIP-39 (Trezor) vs splitting a BIP39 seed into encrypted shares?

Title: Shamir seed backup: SLIP-39 (Trezor) vs splitting a BIP39 seed into encrypted shares? I'm building an open-source inheritance tool (vault.js) that runs offline on Tails. It takes a BIP39 seed, splits it 3-of-5 with Shamir, then encrypts each share with Argon2id + AES-256-GCM under a passphrase. Trezor uses SLIP-39 instead, where the shares are word lists and the wallet itself rebuilds the seed. What are the security trade-offs between the two approaches? Is encrypting each share worth it, or does it add a new single point of failure (the passphrase)? Does splitting a BIP39 seed carry known risks that SLIP-39 was designed to avoid? For heirs who aren't technical, which is safer to recover from in 20 years? Code and threat model: https://github.com/Ashworth78/btcguardianshq from Recent Questions - Bitcoin Stack Exchange https://ift.tt/061pF5j via IFTTT
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Are Xgram’s Cryptocurrency Exchange Rates Up to Date?

I’ve been looking into different sources of cryptocurrency market information and came across Xgram’s coin price page. It displays current prices for various cryptocurrencies, including Bitcoin, Ethereum, XRP, Litecoin and USDT, along with their 24-hour price changes. I’m curious how frequently these figures are updated and whether they accurately reflect current market conditions. Has anyone recently checked the prices on Xgram against other cryptocurrency market data platforms? Do the exchange rates remain consistent, or can there be noticeable differences depending on market fluctuations? I also noticed that Xgram offers an instant crypto exchange service with both fixed and floating rate options. It would be interesting to hear whether the displayed market prices are generally a reliable reference when comparing different cryptocurrencies. Has anyone explored this section of the website? I'd appreciate hearing your thoughts and experiences. from Rec...
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Liana recovery path with a 24-word BIP39 seed when Liana's import only accepts 12 words?

I'm testing a Liana (v15.0) Simple Inheritance wallet on signet. The recovery key is a 24-word BIP39 seed ( [4adc83da/84'/1'/0']tpub... ). The timelock has expired and Liana has built the recovery PSBT, but: Liana's "Import mnemonic" screen only shows 12 word boxes Sparrow (2.5.6), with the same 24-word seed as a single-sig wpkh wallet, says "No open wallets can sign" for the PSBT Questions: Is there a supported way to sign a Liana recovery PSBT with a 24-word software seed, e.g. via Bitcoin Core ( walletprocesspsbt with an imported descriptor including the tprv)? Is the 12-word limit on Liana's hot-key import intentional? For an inheritance key, is 12 words (128-bit) considered sufficient, or should it stay 24? Signet only, no real funds. from Recent Questions - Bitcoin Stack Exchange https://ift.tt/D7MxlrY via IFTTT
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Why do Bitcoin transactions sometimes take longer to confirm?

One thing that often confuses newer Bitcoin users is why a transaction can appear in a wallet but still not be fully confirmed. There are a few factors involved: Network congestion. Transaction fee rates. Miner prioritisation. The number of confirmations required by the receiving service. It's worth understanding these differences before using Bitcoin to make payments online. What's the longest confirmation delay you've experienced? from Recent Questions - Bitcoin Stack Exchange https://ift.tt/W5wfBsM via IFTTT
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Why is my Bitcoin Core v32.1 MSVC build smaller than the official Windows release build?

I built Bitcoin Core v32.1 from source on Windows 11 26H2 + VS2026 18.11.3 using doc/build-windows-msvc.md build process and noticed that the resulting executables are all smaller than the official Windows release binaries (unsigned): Executable MSVC Build Official Build bitcoin.exe 0.5 MB 1.9 MB bitcoin-cli.exe 0.9 MB 2.3 MB bitcoin-tx.exe 2.8 MB 4.6 MB bitcoin-util.exe 1.9 MB 4.2 MB bitcoin-wallet.exe 4.7 MB 8.9 MB bitcoind.exe 12.6 MB 17.1 MB bitcoin-qt.exe 38.1 MB 44.7 MB Functional comparison bitcoind -help output appears identical except for the version string: My build: Bitcoin Core daemon version v32.1   Official build: Bitcoin Core daemon version v32.1.0 Question Is this size difference expected simply because of MSVC versus the official maybe WSL/Mingw-w64 toolchain, or is there some additional build configuration that explains why the official release binaries contain more code? Has anyone compared the generate...
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How to Restore My Wallet Safely Enough Via Trezor Suite?

Using Trezor one, and have the 24 BIP 39 words secure. The first principle of security is, the BIP 39 seeds should not touch any device other than the Trezor one itself? So the question is, when I restore (via Trezor suite and my Ubuntu laptop), do I have to type in the words (on my laptop) to restore the wallet on my Trezor one? Is that a massive security gap? How best should I do it? from Recent Questions - Bitcoin Stack Exchange https://ift.tt/IeYnMFm via IFTTT
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