Welcome back to Vyper for Beginners! This lesson covers dynamic arrays, a key data type that was recently introduced with Vyper 0.3.2. This builds off the previous lessons, so please review the series below if you need a refresher or encounter anything here that is unfamiliar. NOTE: Vyper 0.3.3 was recently released, which fixes a … Read more
A Bill proposed in the United States House of Representatives asks for the United States Treasury to develop an alternative to a CBDC. The proposal comes as a response to the continued work the Federal Reserve and the US Treasury undergo to develop a CBDC. This is a proposal for a “digital equivalent” to physical dollars.
Virtually all lending/borrowing protocols are permissioned. Governance or developer intervention is required to support new tokens, etc. There is an important exception to this rule: Fuse. In this article, we’re going to to cover a high level overview of the Fuse protocol ecosystem. Buckle up, kiddos. We’re going on a trip. First, a bit of … Read more
Welcome back to Vyper for Beginners! This lesson covers interfaces, the primary gateway that your smart contract will use to share data with other deployed contracts on Ethereum (or compatible blockchains). This builds off the previous lessons, so please review the series below if you need a refresher or encounter anything here that is unfamiliar. … Read more
I recently did a guest post for the BowTiedBull Substack, diving into how tokens work and common user pitfalls. One of the most requested followups was how to manually revoke token approvals without Etherscan, in case one of the helpers like Etherscan’s approval tool or Revoke.cash went down. The answer to that question is simple, … Read more
For better or worse, the cryptocurrency community lives on Twitter. The bird app remains the best place to find alpha, hear about hacks, and get a sense of the community gestalt. Below are the 15 best Crypto Twitter accounts that are a must follow. There are some incredibly high-value follows that have a long history of … Read more
Welcome back to Vyper for Beginners! This lesson covers the basic structure of a Vyper contract, a review of Vyper’s variable types, Vyper’s built-in flow control logic (including how it differs from Python), and wraps up with a simple “Hello World” contract that you can deploy on a test net or a local fork. This … Read more
Welcome back to Vyper for Beginners! This lesson will cover my recommended toolkit for writing, compiling, testing, and finally deploying a Vyper contract. It’s no surprise that the most fully-featured toolkit for Vyper is written in Python. Brownie is, by their own description: A Python-based development and testing framework for smart contracts targeting the Ethereum … Read more
Making secure cross-chain bridges is not easy work, as Axie Infinity’s developers Sky Mavis found out. The leading GameFi protocol runs on the Ronin blockchain, which is optimized for gaming. On March 23rd, the Ethereum side of the Ronin bridge was hacked, for the loss of 173,600 ETH and 25.2 million USDC (~$545 million total … Read more
When you keep your coins on Coinbase, Binance, Crypto.com, and all other centralized exchanges you leave them vulnerable to bad actors. Worst part of all? You don’t own the coins, the exchange does because the exchange has your keys. If you’re serious about crypto you need a hardware wallet. “Not Your Keys, Not Your Coins.”