A-Z Technology Index
Cryptocurrency & Blockchain Glossary
Search and browse concise, mathematically accurate definitions for blockchain, consensus, and cryptographic terminology.
Terms Starting With "H" (4)
Alphabetical Reference
Blockchain
Hard Fork
A non-backward-compatible protocol upgrade requiring all validating nodes to update their software.
Cryptography
Hash
A fixed-length alphanumeric string produced by feeding arbitrary data into a one-way mathematical function.
Mining
Hashrate
The aggregate number of cryptographic hash calculations performed by a network per second.
Security
Hot Wallet
A cryptocurrency wallet connected to the internet, such as a browser extension or mobile app.