An immutable, distributed ledger that powers crypto and DeFi

Blockchain

A blockchain is a type of database where data is stored in chronologically ordered "blocks" that are cryptographically linked into a "chain." Once a block is added, it cannot be altered without changing every subsequent block — making the record tamper-evident and, in a decentralized network, practically immutable.

How It Works

Each block contains a set of transactions, a timestamp, and a cryptographic hash of the previous block. Nodes (computers) across the network each hold a copy of the entire chain. New blocks are validated by consensus — either Proof of Work (miners compete to solve puzzles, as in Bitcoin) or Proof of Stake (validators put up collateral, as in Ethereum post-Merge and Solana). Because thousands of nodes agree on the same history, no single party can alter records unilaterally.

Why It Matters for Investors

Blockchain replaces trust in institutions with trust in mathematics. This enables assets (Bitcoin, tokens, NFTs) to be transferred peer-to-peer without a bank clearing the transaction, and enables contracts (DeFi protocols) to execute without an intermediary enforcing them. Every crypto asset and DeFi protocol ultimately relies on a blockchain as its foundation.

TRUE AI & Blockchain

TRUE AI can query on-chain data directly — wallet balances, transaction histories, smart contract states, and protocol metrics. This gives TRUE AI Chat an edge over general-purpose AI models that only have static training data: it can tell you what is happening on-chain right now.

Try This Prompt in TRUE AI

"Analyze the last 30 days of Ethereum on-chain activity and tell me what it signals about market sentiment."

Related Terms

DeFiSolanaBitcoinEthereum

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