Live · Sat, Oct 10, 2026 · 17:01 UTC Block 843,917 Fees 14 sat/vB Fear & Greed 72 · Greed
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Live · 17:01 UTC Block 843,917 F&G 72
What is a Bitcoin witness field and why does it matter?
EXCLUSIVE Bitcoin Basics Flow desk · Live

What is a Bitcoin witness field and why does it matter?

The Bitcoin witness field is the part of a transaction that stores signature data separately from the main transaction body. Understanding it explains why modern addresses are cheaper to use and more flexible to build on.

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