Glossary March 5, 2026 API key API key A cryptocurrency and blockchain term commonly used to describe a concept, mechanism, metric, or component within digital-asset systems. Back to A–Z glossary
Glossary March 5, 2026 Immutability The property of blockchain data that makes recorded transactions permanent and tamper-resistant once confirmed.
Glossary March 5, 2026 Confirmation The number of times a transaction has been included in a block and validated; more confirmations indicate greater security and finality.
Glossary March 5, 2026 Light Client A blockchain node that downloads only block headers rather than full blocks, relying on full nodes for transaction data.