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Isai Alexei

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Isai Alexei is a journalist and financial analyst covering cryptocurrency markets and traditional securities for Blockchaindose. He has spent ten years analyzing digital assets, trading activity, and market structure.

Articles for author: Isai Alexei

Solana Alpenglow

Solana Alpenglow Goes Live Oct. 21: 150 ms Finality

Solana Alpenglow reaches Solana mainnet on Wednesday, October 21, 2026. The mainnet activation starts at epoch 1064, at approximately 15:00 UTC, according to the Solana Foundation. Anza, the Agave client developer, lists 14:50 UTC. Testnet and devnet completed their migrations in September 2026, after stakers approved proposal SIMD-0326 in a 2025 vote. Epoch start times ...

Blockchain consensus mechanisms illustrated by a network of validators linking Bitcoin, Ethereum, XRP Ledger and CometBFT

Blockchain Consensus Mechanisms Compared Across Bitcoin, Ethereum, XRP Ledger and CometBFT

A comparative study of blockchain consensus mechanisms—including Bitcoin, Ethereum, Ripple, and Tendermint—evaluates peer-to-peer networks, native cryptocurrencies, transaction validation, block creation, consensus protocol design, and application development. Bitcoin relies on proof of work. Miners hash block headers until the result falls below a difficulty target, and full nodes select the chain with the most cumulative work. ...

Shared Sequencing and MEV: How Rollups Order Transactions

Shared Sequencing and MEV: How Rollups Order Transactions

Researchers at Matter Labs, the University of Toronto, Télécom Paris and Imperial College London mapped in 2023 how decentralized sequencers reshape transaction ordering on Ethereum rollups. Their framework links shared sequencing to maximal extractable value (MEV) and transaction privacy, the two factors that decide who controls order and who profits from it. It defines seven ...

transaction ordering explained

Transaction Ordering Explained: How Block Producers Sequence Blockchain Transactions

Blockchain networks determine the sequence of pending operations through transaction ordering, the process of selecting which transactions enter the next block and in which position. Block producers hold authority over sequence, and position affects execution price, liquidation outcomes and arbitrage profit. Validators on proof-of-stake networks and miners on proof-of-work networks select transactions from the mempool, ...

Water Rights and Credits on Blockchain

Tokenized Water: Water Rights and Credits on Blockchain

What Is Tokenized Water Tokenized water refers to the representation of water rights, allocations, or conservation credits on a blockchain. In traditional systems, water rights are often tied to land ownership or governed through paper-based legal frameworks, which can make trading slow and difficult. Tokenization converts rights into tokens managed through smart contracts, allowing network ...

Decentralized Science

What Is Decentralized Science (DeSci)? The Future of Scientific Research on the Blockchain

DeSci (decentralized science) is a broad term for projects and platforms that use blockchain for funding, publication, peer review, and other stages of scientific research. The concept emerged in response to processes that rely on a limited number of institutions and publications. The problems DeSci aims to solve In biomedicine, the “valley of death” refers ...

zkBridge

zkBridge: How Zero-Knowledge Proofs Are Rebuilding Cross-Chain Bridges Without Trusted Committees

Introduction and Market Context Interoperability remains one of the unresolved problems in Web3. Ethereum, Cosmos, BNB Chain, Solana and hundreds of other networks operate independently, each with its own consensus rules, signature formats and execution models. Blockchain bridges provide the infrastructure that connects them: they allow a chain C2 to verify that an event occurred ...

blockchainhealthcare

Blockchain in Healthcare: Uses, Impact and Risks

When people discuss blockchain, the conversation often focuses on finance: Bitcoin, Ethereum, exchanges and DeFi. The association has a historical basis because Bitcoin was the first application to use blockchain architecture. However, the technology has a broader scope. A blockchain functions as a distributed, immutable ledger that every participant can verify. The architecture allows parties ...

lucidmempool

How LUCID encrypted mempool transforms MEV protection into protocol reality

When you submit a transaction to Ethereum, the mempool broadcasts it to the network, allowing bots, builders, and validators to see it. When a transaction moves a significant amount of value, such as a large DEX swap, a liquidation, or an NFT bid, participants can extract profit from that visibility before the transaction executes. The ...