All industries have a tier list or implied ranking. It’s usually unspoken, but it’s a real thing that should inform your strategy for getting a job as a blockchain or smart contract engineer. At RareSkills, we get a lot of questions about how to get a blockchain job. But this…

(This story was originally published here) It’s hard to read news about developers and not get the impression there is a shortage of talent. Makes sense right? Companies wouldn’t pay someone $100,000 per year if they could easily fill the job role with someone cheaper. But there is no shortage…

Next cohort begins October 24, 2022 8am PST RareSkills is a bootcamp for experienced developers who want to grow through 1–1 technical coaching with industry leaders. Our current focus is teaching blockchain and smart contract development rigorously so engineers stand out when they apply for web3 jobs. Who this is for? People who are…

A very long list of security issues, best practices, and gas-saving tips — Introduction and Motivation While no checklist can cover every issue that comes up in a solidity code review, these are ones I’ve seen recurring in my code reviews or that arise out of unexpected quirks in Solidity or blockchain environments. To give credit where credit is due, I borrowed some recurring themes from…

Like most engineers, I default to a mode of thinking commonly considered “logical” and “rational.” For most of my life, it completely puzzled me how anyone can get through life any other way. It makes sense right? The billionaires my peers and I look up to, Warren Buffet, Jeff Bezos…

click here if you are seeing a paywall Abstract and Highlights We introduce an ERC1155D, an ERC1155 implementation that is fully backward compatible and fully compliant with ERC1155. ERC1155D is completely non-fungible in the way ERC721 is, so each token has a unique identifier and a unique owner. With a mint cost of…

If you see a paywall, click this link. What Causes Gas Wars and Failed Mints? If 1,000 NFTs are available during public sale, but 10,000 investors want one, then it is clear most will not have their wish fulfilled. If all of them submit their buy order at once, the 1,000 who pay the highest gas fee…

This series has a Part 1 and Part 2. If you see a paywall, click here. In a public mint, people can generally mint as many NFTs as they want to, either by minting over and over or by colluding with other buyers. This is undesirable in a private sale…

Part one of this series is here. If you are seeing a paywall, click this link. When tokens are airdropped, or private sales are conducted (sales where only selected addresses are allowed to purchase a token or mint an NFT), there are three popular mechanisms for allowing only a selected…