Glossary
Short explanations of the terms you meet when exchanging crypto.
- Blockchain network
A blockchain on which coins and tokens are transferred, for example Bitcoin, Ethereum, TRON, Solana or TON. A transfer exists only inside its own network: coins sent on one network do not appear on another.
- Token
An asset created on top of a network, such as USDT on TRON or on Ethereum. A token uses the addresses of its network, and the network fee for sending it is paid in the native coin of that network.
- Token standard (TRC20, ERC20, BEP20)
The rules a token follows on a particular network: TRC20 on TRON, ERC20 on Ethereum, BEP20 on BNB Smart Chain, SPL on Solana, jettons on TON. USDT TRC20 and USDT ERC20 have the same name but are different assets.
- Stablecoin
A token designed to keep a stable value, usually tied to the US dollar, for example USDT or USDC. Its market price can deviate slightly.
- Deposit address
The address issued for your exchange to which you send the funds. Send exactly the coin and the network shown in your exchange, and do not use the address for new transfers after the exchange is finished.
- Memo / tag
An extra identifier of a transfer used on networks such as TON, XRP Ledger, Stellar and Cosmos. Exchanges use it to credit deposits to the right account. If your exchange shows a memo/tag, the transfer must include it.
- Network fee
A fee paid to the network for processing a transfer, in the native coin of the network: TRX, ETH, BNB, SOL, TON and others. The network fee for your own transfer is charged by your wallet or exchange and is not included in the estimate.
- Energy and bandwidth (TRON)
TRON network resources that pay for transactions. A USDT TRC20 transfer uses energy and bandwidth; if the account does not have enough, the network burns TRX to cover the difference.
- Confirmation
Each new block added on top of the block with your transaction. Services wait for a certain number of confirmations before treating a deposit as received.
- Transaction hash (TxID)
A unique identifier of a transaction. With it you can find the transfer in a blockchain explorer, and support can check it.
- Blockchain explorer
A public website that shows transactions, addresses and blocks of a network. Each network has its own explorers.
- Floating rate
A rate that is not fixed in advance: the final amount depends on the rate at the time your exchange is processed and may differ from the preliminary estimate.
- Minimum amount
The smallest amount accepted for a particular exchange direction. The calculator shows it before you create an exchange; it can change over time.
- Refund address
Your address to which funds can be returned if the exchange is not completed. It is optional; without it an automatic refund is not possible, and the funds can only be returned through support.
- Seed phrase
A set of words (usually 12 or 24) that gives full control over a wallet. Anyone who knows it can take the funds. Never share it: an exchange does not need it.
- Custodial and own wallet
On a custodial wallet or exchange account the service holds the keys and processes withdrawals. In your own (non-custodial) wallet only you hold the keys. Changezilla does not hold your funds: you receive the result at your own address.
- Identity verification (KYC)
Checking who the user is. It is not required by default; it may be requested if a transaction looks unusual, in cases of fraud reports or as the law requires, and it is mandatory for users from some countries.