Bitcoin Sidechains & SPV Proofs

# Blockstream Sidechain Proposal: https://blockstream.com/sidechains.pdf # RSK Bitcoin Mainnet Sidechain w/ Solidity EVM https://media.rsk.co/bamboo-mainnet-beta-release-v0-4-0-is-here/ # Criticisms of Sidechain security by Peter Todd: 1. SPV proof security is weaker than full blockchain verification 2. Sidechain mining via merge mining tends towards large mining pools and centralisation https://www.reddit.com/r/Bitcoin/comments/2424×1/peter_todd_explainins_why_sidechains_are_insecure/

Bitcoin Q&A: Simplified Payment Verification (SPV)

What are Simplified Payment Verification (SPV) proofs? How are they used in a scenario with sidechains? This question is from the sixth session of MOOC 12, which took place on October 18th 2019. If you want early-access to talks and a chance to participate in the monthly live Q&As with Andreas, become a patron: https://www.patreon.com/aantonop […]

Blockchain/Bitcoin for beginners 7: Blockchain header: Merkle roots and SPV transaction verification

How are transactions stored (and recorded) in the Blockchain blocks? Using a concept called a Merkle tree – in this video I break it down in depth with a simple example and show how a SPV node (Simple Payment Verification) node that does not keep a full copy of the blockchain transaction history – just […]

#bacOpenWebinar: El extraño mundo de las billeteras de Ethereum

¡Sean bienvenidos a un nuevo #BacOpenWebinar​​! En esta jornada estaremos aprendiendo junto a Esteban Miño, mobile engineer en Rainbow wallet, sobre las opciones que tenemos para guardar nuestras criptomonedas e interactuar con el ecosistema de aplicaciones descentralizadas en Ethereum, con un enfoque especial en consejos de seguridad para gestionar nuestras billeteras. Acompaña a Cristóbal y […]

Unboxing of the GridPlus Lattice1 Hardware wallet

BUY GRIDPLUS LATTICE1 WALLET 👉 Link: http://www.gridplus.io?afmc=4h 👉 Disclaimer: this is an affiliate link FREE TRAININGS 👉 How to find your first 6-Figures Blockchain Developer Job: https://eattheblocks.com/bootcamp 👉 Learn how to create Profitable Flashloans: https://eattheblocks.com/flash COURSES 👉 DeFi Development Mastery: https://eattheblocks-pro.teachable.com/p/defi-development-mastery 👉 Profitable Flashloans: https://eattheblocks-pro.teachable.com/p/profitable-flashloans 👉 6 Figures Blockchain developer course: https://eattheblocks.com/6-figure-blockchain-developer FACEBOOK GROUP 👉 […]

Bitcoin Q&A: SIGHASH_NOINPUT and Custodial Wallets

Do Bitcoin Core / base layer developers and Lightning Network / second layer developers coordinate? What is SIGHASH_NOINPUT? Where can I find details about how locking and unlocking scripts work for Lightning channels? BOLT 3 focuses on script formatting. How safe are custodial Lightning wallets? These questions are from the March and April monthly subscriber […]

Best Cryptocurrency Wallets of 2021 (in 2 minutes)

Best overall (hardware wallet) – 1. Ledger Nano X: https://bit.ly/3kxeWUQ Most affordable (hardware wallet) – Trezor One: https://bit.ly/2DrmYxB Read our complete in-depth guide here: http://bit.ly/2D7tV2S Join our 7-day Bitcoin crash course absolutely free: http://bit.ly/2pB4X5B Learn ANYTHING about Bitcoin and cryptocurrencies on our YouTube channel: http://bit.ly/2BVbxeF Get the latest news and prices on your phone: iOS […]

DeFi Wallets and Self-Custody: How to be 100% in Control

NOTE: As you cruise along this series, you will notice how fast the DeFi space is; both in terms of execution and change. So if you happen to spot a discrepancy between what is said and what is shown on screen, particularly in regards to numbers, it is due to that. Keep it in mind […]

TOP 3 DEFI WALLETS FOR 2021 – What Features Do They Support?

So what are the top 3 DeFi-friendly wallets? What features do they support? And what are the pros and cons of using each of them? We’ll answer all of these questions in this video. 🔒 Ledger (Xmas promo) ► https://shop.ledger.com/pages/christmas-pack?r=b0b220a75e03 (the Black Friday offer is finished, but Xmas promo is on, affiliate) 📱 Argent Wallet […]

🔵 🤔 ¿Se APAGA la fiebre por DEFI? – Bit2Me Crypto News – 04.12.2020

🎁 ¡SORTEO 100 PROGRAMAS! 🎁 https://twitter.com/bit2me/status/1334848680692768768 🤔 ¿Se apaga la fiebre de DeFi? – Cada vez se están quemando más WBTC – WBTC es un token emitido en la red de Ethereum que representa un BTC bloqueado en la red de Bitcoin – Algunas personas usan WBTC para poder interactuar en la red de Ethereum […]

🔵 👝 800K billeteras con MÁS de 1 BITCOIN – Bit2Me Crypto News – 27.11.2020

👝 Las billeteras con menos de un Bitcoin sólo representan el 5% de todos los bitcoin – Las billeteras con mínimo 1 BTC incrementan año tras año – Hoy hay más de 800.000 billeteras con más de 1 BTC – Si tienes 1 BTC ó más, estás en el 0.01% más rico de la población […]

The Tears Test: Mobile Cryptocurrency Wallets vs Hardware Wallets

It is okay to store most of your cryptcurrency (including bitcoin) in a non-custodial mobile wallet? Not really. How much crypto should you store on your phone? Apply the tears test! 😢 Save yourself some tears and watch this video. 0:00 Is it okay to store most of my crypto in non-custodial phone wallets vs […]
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