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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.

Bitcoin Core IBD becomes extremely slow after ~68%; peers connect but stop delivering blocks

I'm currently doing the Initial Block Download (IBD) of a Bitcoin Core node. For most of the synchronization, everything behaved as expected. The node was using the resources I made available to it: CPU usage was high during validation, RAM usage increased according to the configured cache, network bandwidth was being used, and the synchronization rate varied roughly between 2% and 5% per hour , with a peak around 5%/h. I then left the node running for about a week while I was away. When I came back, it was around 68–69% synchronized , but the effective synchronization rate had fallen to approximately 0.03% per hour . This had apparently happened several days before I returned. Before leaving, the node was around 20%, so even a sustained 1%/h rate should have put it much further ahead after several days. There was also an unexpected power outage while I was away, which caused the node to shut down abruptly. However, I don't see any indication that the outage ...
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LBANK

LBANK

Multisig wallet with Bitcoin Core and hardware wallets

Imagine a multisig wallet with cosigners comprising say 2 (software) Bitcoin Core wallets, and 3 hardware signing devices, in a m-of-5 multisig setup. Do experienced bitcoiners foresee a problem with this setup? Specifically, the wsh(sortedmulti(..)) descriptor will mix address paths - Core's m/84'/0'/0'/0/* xpub with hardware wallets' m/48'/0'/0'/2' BIP-48 derivation paths. I understand that coordination software won't care about different paths to derive receive address, but could there be other issues, long-term? I do understand we can simplify things with just m/84 or m/48 paths within the multisig, but question is about mixing paths. Thanks for helping. from Recent Questions - Bitcoin Stack Exchange https://ift.tt/up4BRzM via IFTTT
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Stacking BTC with MIca platform?

i'm looking for plateform where i can stake BTC with the best interest. Any suggestion ? I'm european i need MIca platform. Thank you ! from Recent Questions - Bitcoin Stack Exchange https://ift.tt/SC1BNkm via IFTTT
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Is it possible to only accept incoming connections from full nodes?

Currently running Bitcoin Core 31.1 and in the past I remember a config option to provide search services to light clients (may have been on Knots). Usually about half of my incoming connection peers are breadwallet or bitcoinj clients. Is it possible to only peer with full nodes such as libbitcoin, knots, core, etc? from Recent Questions - Bitcoin Stack Exchange https://ift.tt/2GTKboR via IFTTT
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initGenesisBlock

[CANTAP ENGINE] Opening Block 1 Data Payload...[CANTAP ENGINE] Total Transactions Found: 1 (Coinbase Transaction)[CANTAP ENGINE] Parsing Transaction ID (TXID)...[CANTAP ENGINE] TXID Verified: 0e3e23d38f8bc65e4d4fa7d2767ab32ec39be14ee4198c38d66e40981e60a359รายงานข้อมูลธุรกรรมภายใน บล็อกที่ 1 (Block 1)ในบล็อกแรกนี้ เครือข่าย Bitcoin พึ่งจะเริ่มต้นทำงาน จึงยังไม่มีการโอนเงินระหว่างผู้ใช้ทั่วไป ธุรกรรมเดียวที่ถูกบรรจุไว้คือ Coinbase Transaction (ธุรกรรมการออกเหรียญใหม่เพื่อเป็นรางวัลให้กับผู้ขุด) มีรายละเอียดโครงสร้างข้อมูลดังนี้ครับ:ประเภทธุรกรรม: Coinbase (New Coins)จำนวนเหรียญที่สร้าง (Output Value): 50.00 BTC (เงินรางวัลบล็อกเริ่มต้นของระบบ)ค่าธรรมเนียมธุรกรรม (Transaction Fees): 0.00 BTC (เนื่องจากไม่มีธุรกรรมอื่นในบล็อก)ที่อยู่กระเป๋าผู้รับรางวัล (Output Address): 12c6DSiU4Rq3VUwHu7ua7gP7tA75d1qX1d (กระเป๋าของ Satoshi Nakamoto)ข้อมูลภายใน Coinbase (Coinbase ScriptSig): บันทึกค่าพารามิเตอร์เริ่มต้นและค่า Nonce ของบล็อกการตรวจสอบข้อมูลธุรกรรมเสร็จสิ้น โครงสร้างข้อมูลถูกต้อ...
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Would fpga mining steal beat gpu mining today?

Of course, only ASIC is relevant today. But before bitcoin asics became available, fpga based bitcoin mining out competed gpus. Back at that time, gpus were mainly floating point oriented. But would a modern Stratix 10 Gx with over 12 million lut still beat a RTX4090 in terms of mining profitability? from Recent Questions - Bitcoin Stack Exchange https://ift.tt/U3Wg2SD via IFTTT
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Bedroom mining overnight... is dB rating even the right thing to compare?

So i've been going back and forth on whether to put a mining heater in the bedroom for winter. My apartment runs cold and i already spend money on a space heater, so the math kinda makes sense on paper. But every comparison i see focuses on the lowest dB number on the spec sheet. And honestly i'm not sure that tells you much about whether you can actually sleep next to the thing. A steady fan at 38dB can totally disappear into the background — my air purifier is around that and i forget it's on. But a fan that ramps up and down, even if it's technically "quieter" at its lowest setting, would absolutely wake me up. The change in sound is what gets you, not the volume itself. Which got me thinking... would you actually run a Bitcoin heater in a bedroom overnight? Like has anyone here done it and not just for a single night but consistently? I've been looking at the Avalon lineup since they seem designed for this use case. The Mini 3 is more inte...
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