What Is a Blockchain
A blockchain is a decentralized digital ledger that records transactions in an ever-growing series of blocks. Each block contains transaction data, a timestamp, and a cryptographic link to the previous block, forming a secure and chronological chain. This design makes blockchains highly resistant to tampering and fraud.
Blockchains run on peer-to-peer networks of computers known as nodes. Each node maintains a copy of the ledger and helps verify new transactions, removing the need for a central authority. Once transactions receive enough confirmations and are added to the blockchain, they become effectively permanent and publicly verifiable using tools like block explorers.
Today, blockchain technology underpins many cryptocurrency networks and payment systems. KAST uses supported blockchain networks to process stablecoin transactions securely and efficiently. By relying on fast, low-cost blockchains, KAST ensures that payments and card top-ups are transparent, trackable onchain, and finalized with confidence, giving users a smooth and predictable spending experience.
