Solidity can hash block data into a bounded number, but that result is not suitable for a raffle, game reward, or any outcome with value, and I compiled the small contract below with solc 0.8.36 during this refresh to show…
A federated blockchain, also called a consortium blockchain, is a permissioned network governed by several organizations instead of one owner or an open public community. You use it when participants need a shared record but must agree on membership, approvals,…
Ethereum and Ethereum Classic are separate smart-contract networks with different native assets, consensus rules, and histories. I checked Ethereum’s current Merge documentation and Ethereum Classic’s protocol pages for this comparison, because an old description of ETH mining gives you the…
Dogepalooza was announced as a Dogecoin-themed music festival for October 9, 2021, at Constellation Field in Sugar Land, Texas. That event was later postponed, so the original tickets, venue details, and lineup reports are historical records rather than a current…
What is DeFi? How decentralized finance works Decentralized finance, usually called DeFi, is software that lets you use financial services through blockchain-based smart contracts. A wallet signs the instructions, and the contract applies its published rules for a swap, loan,…
solc compiles Solidity source into the artifacts a deployment tool needs, including an application binary interface (ABI) and EVM bytecode. I ran node compile.js and recorded solc 0.8.36 producing a Greeter ABI with two entries and a bytecode prefix in…
Blockchain is a system for recording and sharing data. Cryptocurrency is a digital asset that can use such a system to track ownership and transfers. Bitcoin made the two terms famous together, which is why they are often confused. The…
The best blockchain platform for a decentralized application depends on the contracts you need to run, the wallet and developer tooling you can support, and where the application needs to connect. Ethereum, Base, Polygon, BNB Smart Chain, and Solana each…
Blockchain in supply chain management is useful when independent organizations need to share a tamper-evident history of a product or shipment. I checked the current GS1 EPCIS standard while preparing this update because a ledger only helps after every participant…
Blockchain in oil and gas is most useful when several companies need the same record of a trade, shipment, inspection, or settlement event. It does not make field data correct on its own, but it can preserve an agreed record…
