logo

Consensus

Consensus is the process by which a blockchain network ensures that all participating nodes maintain a unified and accurate record of transactions. It is fundamental to the security, decentralization, and functionality of blockchain systems. Consensus mechanisms ensure that only valid transactions and blocks are added to the blockchain, preventing issues like double spending or tampering.

Share this term

Decentralised Identifier

A Decentralised Identifier (DID) is a self-owned, globally unique ID issued by an autonomous decentralised entity, used as proof of ownership or identity. Unlike traditional identifiers such as email addresses or usernames, DIDs are not controlled by central authorities, ensuring greater privacy and security. It is often stored on decentralised networks, ensuring immutability and tamper resistance. DIDs can be used across different platforms and services allowing users to only share the specific details required for verification, protecting their personal information

See full definition

Distributed Ledger

A distributed ledger is a digital database that is stored across multiple nodes in a network. Unlike centralised databases, which are controlled by a single authority, distributed ledgers allow all participants in the network to maintain a shared and synchronised copy of the data. Key characteristics of distributed ledgers:

See full definition

Crypto scoop

Sign up for our weekly newsletter

Stay informed with the latest updates to buy, sell, and store your crypto on the go.

phone

Download the Yellow Card app

Start trading crypto with ease

Get the Yellow Card app to buy, sell, and store your crypto on the go.

footer logo
[email protected]

© 2026. Yellow Card Academy

Visit our website
Explore
Collections
Community