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Jun 21, 2026

Merkle Root Basics: Understanding the Core Commitment Mechanism for Bitcoin Block Transactions

The Merkle root is the root hash computed from all transaction IDs (txids) in a block via a Merkle tree. Written into the block header, it serves as a cryptographic commitment to the transaction set. This article explains its principle, role, relation to big blocks and SPV verification, and common misconceptions.

Jun 21, 2026

Merkle Proofs Explained: How to Verify a Transaction Without Downloading the Full Block

A Merkle proof is a lightweight method to verify that a transaction is included in a block's transaction set without downloading the entire block. This article covers the principles, structure, verification process, role in the BSV tech stack, and common misconceptions.

Jun 20, 2026

The Bitcoin Block Header: The 80‑Byte Foundation for SPV and Light Clients

The block header is an 80‑byte summary of a Bitcoin block. It does not contain full transactions, yet it is the critical structure linking the proof‑of‑work chain and committing to the transaction set. This article explains the header fields, Merkle root, and SPV principles, helping you understand how BSV enables massive scaling.