A backward-compatible upgrade that doesnt require all nodes to update

What is Consensus Mechanism?

The method by which a blockchain network agrees on the current state of the ledger

What is Hash Function?

Cryptographic algorithm that converts input data into a fixed-size alphanumeric string

What is Smart Contract?

Self-executing code on a blockchain that automatically enforces agreement terms

A change in blockchain protocol rules that creates a divergence from the original chain

A computer that maintains a copy of the blockchain and validates transactions

Merkle Tree definition

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Oct 04, 2025

Definición

A data structure used to efficiently verify transaction integrity in a block

Invented by Ralph Merkle in 1979, Merkle trees allow quick verification of large datasets with minimal data transfer, optimizing blockchain efficiency for blocks containing thousands of transactions. Implementation Details: Tree Depth: log₂(n) where n = number of transactions. SPV Proof Size: ~1KB for 1000+ transactions. Verification Time: O(log n) complexity. Applications: Light client verification, state tree in Ethereum, certificate transparency logs.

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Core Blockchain Concepts

Términos Relacionados

Soft Fork

Consensus Mechanism

Hash Function

Smart Contract

Fork

Node