Author: BlockchainJournal

VeChainThor no longer runs under the consensus system described in most older VeChain explainers. The Hayabusa mainnet upgrade in December 2025 replaced its identity-vetted Proof of Authority model with Delegated Proof of Stake. It also ended the rule under which simply holding VET generated VTHO. Those changes alter the roles of both tokens and the network’s trust model. This guide describes the system checked on September 3, 2026, not the historical version launched in 2018. VeChain and VeChainThor VeChain is the ecosystem and foundation associated with VeChainThor, a public, smart-contract Layer 1. The chain uses account-style addresses and an execution…

Uniswap’s Swap button can hide a surprisingly long route: a wallet approval, several liquidity pools, more than one protocol version and a final minimum-output condition. Each element affects what reaches the wallet. Uniswap is a family of automated market maker protocols rather than one immutable application. Versions coexist, independent interfaces can access them, and third parties can create pools or tokens without approval. The basic pool model In the classic constant-product design, a pool holds two token reserves and prices trades according to a formula commonly written as x × y = k. Buying one asset removes it from the…

SportsDataIO has launched a Chainlink node to provide Dapps and developers with real-time premium sports data of major sports leagues to build novel blockchain-based sports apps.

Bitcoin is offered at 100 on one venue and bid at 101 on another. The screen appears to show a one-unit profit—until order depth, two sets of fees and the time needed to rebalance capital enter the calculation. Crypto arbitrage trades price differences for the same or closely related exposure. Professional execution often uses inventory already positioned at several venues because transferring an asset after spotting the gap can take longer than the opportunity lasts. Why price differences exist Crypto trading is fragmented across centralised exchanges, decentralised protocols, networks and currency pairs. Each venue has its own participants, liquidity, settlement…

Before a Solana transaction runs, it declares the accounts it will read or change, the programs it will call and a recent blockhash. A validator can then schedule transactions that do not compete for the same writable state in parallel. That execution model—not a headline transactions-per-second figure—is the foundation of Solana’s performance. Solana is a public proof-of-stake blockchain launched on mainnet beta in 2020. SOL pays fees, supports staking and is used by applications across trading, payments, tokens, games and other onchain markets. The account model Solana stores state in accounts identified by addresses. An account can hold lamports—the smallest…

A team that once needed to win a parachain auction and lock DOT for a long lease can now buy network capacity in smaller units. That change—from fixed slot leases to Agile Coretime—is the simplest way to see why a 2021 description of Polkadot no longer fits the network. Polkadot is designed as shared infrastructure for specialised blockchains. Its relay chain coordinates security and consensus, while parachains execute their own state transitions. Coretime determines when those tasks use Polkadot’s validation resources. The relay chain does less so parachains can do more The relay chain is not a general-purpose smart-contract platform…

Ethereum 2.0 was a roadmap, not a separate network. Here is what The Merge changed, how proof-of-stake works and why rollups replaced shard chains.

In the recent market updates and developments, Decentralized Finance (DeFi) tokens have performed exceptionally well. Yearn.finance and Eos have topped the list, as their prices soared in the spot market on Tuesday. On the contrary, Bitcoin and Ethereum, being the big guns, rose a bit higher than others.

The e-commerce giant, Ebay Inc. announced on Tuesday, 11 May 2021 that it has allowed the sale of Non-fungible tokens (NFTs) on its platform. These digital collectibles include cards, images or video clips. By taking this step, in line with the evolving ecommerce business, EBay becomes the first e-commerce company to allow trade in NFTs.  

There has been a lot of fuss about Dogecoin, which was started as a meme back in 2013. However, its recent success and constant support from the likes of Elon Musk has attracted many worldwide traders and investors.