Mempool
The waiting area where valid unconfirmed Bitcoin transactions are held by nodes before they are included in blocks.
Start at the surface or go deeper. Follow clear learning paths through Bitcoin fundamentals, the network, protocols, development, updates, culture, and the wider ecosystem.
Knowledge Index
Topic Preview
Topic Preview
Topic Preview
Topic Preview
Topic Preview
Glossary Preview
Compact definitions for the language that appears throughout Bitcoin guides.
The waiting area where valid unconfirmed Bitcoin transactions are held by nodes before they are included in blocks.
An unspent transaction output is a discrete piece of bitcoin value that can be used as an input in a later transaction.
A measure of the total computational work miners are directing toward Bitcoin proof of work.
A transaction has a confirmation when it is included in a block, with later blocks adding more settlement depth.
Holding your own private keys so you control spending without relying on a third-party custodian.
Software that independently checks Bitcoin rules and shares valid transaction and block data with peers.