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A cryptocurrency is a digital asset recorded on a shared ledger maintained by many computers. Ownership is proven with cryptographic keys rather than an account at a bank.

Blocks of transactions are linked by hashes. Changing an old block would change every later hash, which the network would reject.

Ethereum has limited capacity. Layer 2 networks like Base process transactions separately and post summaries to Ethereum, lowering fees.

Hot wallets are apps connected to the internet. Hardware wallets keep keys on a separate device. Larger holdings are usually safer on hardware.

On a verified contract page, the Contract tab shows source code; Read Contract lets you query values like totalSupply without a wallet.

totalSupply, balanceOf, transfer, approve, allowance and transferFrom. Together they let any app hold and move the token.

Tokenomics describes how many tokens exist, who holds them and when they unlock. Fully diluted valuation assumes all tokens are circulating.

Anyone can create a token with any name. Only the contract address identifies the genuine one — always check it against official sources.

DEXs use liquidity pools priced by formula rather than order books. Prices can move sharply when liquidity is thin.

Cryptoassets can be volatile, illiquid, and lost through scams or mistakes. They are generally not covered by compensation schemes.

Holding a token means an address controls a balance in a contract. It does not by itself give legal rights over a company or its assets.