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One of the largest sources of information about Bitcoin for non-technical newbies. Bitcoin Guides, Reviews and Courses, ie. "The Best Bitcoin and Cryptocurrency Exchange Guide", "How to Buy Bitcoin in 2024 – A Beginner’s Guide", "Bitcoin Wallet Guide, Reviews, and Comparison".

OP_CAT: The Missing Piece for BTC L2s?

OP_CAT, or "Operation Concatenate," is an opcode in Bitcoin's scripting language that allows to build new Bitcoin related solutions, like L2 networks, but it has to be reactivated in the protocol first - consensus is needed. "StarkWare has plans to leverage OP_CAT for bringing zero-knowledge (ZK) scaling to Bitcoin to enable advanced financial instruments and apps on the network. "

PayPal USD

PYUSD is aEthereum and Solana smartcontract stablecoin fully backed by US dollar deposits, US treasuries, and similar cash equivalents. You can buy and sell 1 PYUSD for 1 USD on PayPal. PayPal USD is issued by Paxos Trust Company, LLC (Paxos).

$1B lost: The 5 biggest cryptocurrency fails of 2017

Worth to remember Year 2017. Includes description of Parity Wallet Hack where 3 wallets had been drained of over 150,000 Ether.

Entry level informations about different wallet types (Starting Guide, FAQs) and some wallet solutions reviews.

Forget the Bitcoin halving: Bitcoin’s original vision has been surpassed (mid of2024)

Good description of state of crypto in mid 2024. The bitcoin ETF approval is an evolution of Satoshi’s vision of global decentralized money to global decentralized programmable assets. Etherem's L2s is only bandage.

Introducing Polygon 2.0: The Value Layer of the Internet

Introduction to Polygon 2.0 concept - Value Layer of the Internet.

POL: One token for all Polygon chains

Whitepaper describing vision of MATIC cryptocurrency successor - POL: "Realizing the vision of the Value Layer of the Internet will eventually require the Polygon network to host billions of users and millions of Web3 applications. To enable this vast level of activity, hundreds or thousands of Polygon chains will be running in parallel, secured by tens or hundreds of thousands of validators. "


The "native" zkEVM Ethereum L2 blockchain, Total value locked: 639.8M Transaction count: 51.5M, Batches settled to L1: 223,018 as for end of 2Q/2024. First block 0: Oct-10-2023 06:00

Cardano Summit 2024

2-days Global Cardano Blockchain Event Dubai, UAE,23-24 October 2024. From site: "The global Cardano Summit returns, bringing together industry leaders, businesses, Cardano ecosystem projects, and blockchain enthusiasts for networking and connecting with a new generation of innovative projects."

XRP Ledger Apex 2024

XRP Ledger Apex 2024 June 11-13, 2024 Amsterdam, Netherlands. Biggest XRP Cryptocurrency Conference with 70+ Speakers and 60+ Sessions. From site: "XRP Ledger Apex 2024, hosted by Ripple is the largest annual summit on the XRPL calendar. It unites developers, businesses, fintechs, VCs and the wider community. Be the first to hear about major updates, explore unmatched networking opportunities and engage directly with key players shaping the future of XRP Ledger ecosystem."

Turbo Token

Listed on 30+ exchanges memecoin with 2908.74% (1y) price growth in 2024. "A Meme Coin coded by Artificial Intelligence." can be read on the Website, just to explore AI trends.

Redstone L2

Redstone Mainnet is a version of optimistic rollup layer 2 (L2) protocol with plasma mode. Redstone has low tx fees amd is targeted for onchain games and online worlds. It is compatible with Ethereum clients, like Metamask. First block was started on Apr 04 2024 00:58:13 AM and every new is made every 2 sec.

Register, manage and trade .eth domains on market. Ethereum Name Service (ENS) is a decentralized domain name system built on the Ethereum blockchain.


Los-Angeles based Crypto news portal, newsletter and podcast. Categories: Business, Regulation, Bitcoin, Ethereum, DeFi, Tech, NFTs.


DEX Swaps for Solana Network and DeFi tool. "Raydium is an automated market maker (AMM) built on the Solana blockchain which leverages a central limit order book to enable lightning-fast trades, shared liquidity and new features for earning yield." Allows to provide liqudity and earn fees, stake, farm and more.

The memecoin launchpad on Solana or Blast where You can launch a coin instantly and tradeable. Also allows users to speculate (pump) on microcap tokens without the worry of a malicious developer removing the liquidity (rug) - fair-launch with no presale and no team allocation.


Qredo is distributed multi-party computation (dMPC) protocol offering enterprise-grade cryptocurrency security and governance solutions for digital assets stored in any EVM (Ethereum) compatible blockchain. Qredo's policy engine enables the creation of signing schemes that allows multiple parties to initiate and approve blockchain transactions. In other words Qredo is a non-custodial solution which secures digital assets on-chain without the need for users to store private keys. Qredo provides its own API for custom software integration and prepared Web3 wallets integrations, like: METAMASK INSTITUTIONAL, WALLETCONNECT, SUI WALLET.


Framework, thus based on EVM, consist it's own L2 REDStone for low cost of operation. "MUD is a framework for ambitious onchain applications. It reduces the complexity of building Ethereum apps with a tightly integrated software stack. It's open source and free to use." Technologies: Node.js v18, git, Foundry, pnpm.


Amazing animated visualisation of Bitcoin mempool. Additionally, interactive graphic representation of current block with detail info about all transactions in it: inputs, outputs, fees and more. Very good educational resource for Bitcoin.

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