Glossary
Coins & networks
The chains and coins a merchant can accept, and what each one costs to use.
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- What Is Bitcoin Cash? Bitcoin Cash (BCH) is a cryptocurrency that split away from Bitcoin on 1 August 2017. It shares Bitcoin's entire history up to… what is bitcoin cash what is btc cash bch meaning
- What Is Litecoin? Litecoin (LTC) is a cryptocurrency launched in October 2011 by Charlie Lee, a former Google engineer, as a lighter version of Bitcoin.… what is litecoin what is ltc payment method how to pay with litecoin
- What Is a Transaction Hash? A transaction hash, also called a TXID, is the unique identifier of a transfer on a blockchain. It looks like a long… what is a transaction hash what is txid transaction id crypto
- How Many Confirmations for Bitcoin? A confirmation means a transaction has been included in a block. Each block added after that one counts as another confirmation, so… how many confirmations for bitcoin how long do bitcoin transactions take bitcoin transaction unconfirmed
- What Is TON? TON stands for The Open Network, a blockchain whose native token is Toncoin. It is one of the cheapest and fastest networks… what is ton toncoin meaning ton blockchain
- What Is BNB? BNB is the native token of BNB Chain, a blockchain compatible with Ethereum's tooling. It launched in 2017 as Binance Coin, an… what is bnb bnb coin meaning bnb chain
- What Is Solana? Solana is a blockchain launched in 2020 and built for throughput. Its native token is SOL, transactions settle in well under a… what is solana solana meaning sol crypto
- What Is Monero? Monero (XMR) is a cryptocurrency launched in 2014 in which sender, recipient and amount are hidden by default. Where Bitcoin publishes every… what is monero monero meaning xmr crypto
- What Is Dogecoin? Dogecoin (DOGE) is a cryptocurrency created in December 2013 as a parody of the coins launching every week at the time. The… what is dogecoin doge meaning where is dogecoin accepted
- What Is a Layer 2? A layer 2 is a network built on top of a base blockchain that processes transactions separately and periodically writes results back… what is layer layer 2 blockchain l2 crypto meaning
- What Is a Validator? A validator is a participant that checks transactions and helps add new blocks to a blockchain. When you wait for a payment… what is a validator validator crypto meaning proof of stake validator
- What Is a Native Token? A native token is the coin a blockchain issues itself and uses to pay for its own operation. ETH on Ethereum, SOL… what is a native token native token meaning native coin vs token
- What Are Altcoins? An altcoin is any cryptocurrency other than Bitcoin. The word contracts alternative coin, and it dates from the period when Bitcoin was… what are altcoins altcoin meaning altcoins vs stablecoins
- How Many Bitcoins Are There? Bitcoin is capped at 21 million coins and will never exceed it. As of 2026 roughly 19,9 million have been mined, which… how many bitcoin in world how many bitcoins are there bitcoin total supply
- How to Get and Spend Bitcoin There are five ways to acquire Bitcoin and rather fewer places to spend it than the enthusiasm around the subject suggests. Both… how to get bitcoin where to spend bitcoin what can you buy with bitcoin
- What Is Gas in Crypto? Gas measures the computational work a transaction requires from a blockchain. The word originated with Ethereum and spread to every network built… what is gas in crypto gas fee meaning why are ethereum fees so high
- What Is a Smart Contract? A smart contract is a program stored on a blockchain that runs when someone calls it. Nobody executes it on request and… what is a smart contract smart contract meaning how do smart contracts work
- What Is a Blockchain Network? In crypto, the network is the blockchain an asset moves on. It is the single most consequential choice in any transfer, and… what is a blockchain network what does network mean in crypto how to know which network
- What Is a Block Explorer? A block explorer is a search engine for a blockchain. Every transaction, address and block on a public chain is recorded permanently… what is a block explorer how to use a block explorer blockchain explorer
- What Is the Mempool? The mempool is the waiting room of a blockchain: the pool of transactions that have been broadcast to the network but not… what is the mempool mempool meaning why is my transaction stuck
- What Is a Blockchain Bridge? A bridge moves value between blockchains that have no knowledge of each other. Since a token cannot leave the network it lives… what is a blockchain bridge how do crypto bridges work bridge risks crypto
- What Is a Wrapped Token? A wrapped token represents another asset, usually one living on a different blockchain. WBTC represents Bitcoin on Ethereum. The original is locked… what is a wrapped token wbtc meaning what is weth
- What Is a Double Spend? A double spend means using the same funds twice. This was the problem that made digital money impossible before blockchain: a file… what is a double spend double spending problem 51 percent attack
- Sent Crypto to the Wrong Network The funds are not destroyed. A transfer sent on the wrong chain exists at that address on that chain, and whether you… sent crypto to wrong network wrong network transfer recover funds sent to wrong network
- What Is Bitcoin Halving? Halving is the scheduled reduction of the Bitcoin mining reward by fifty percent, occurring every 210 000 blocks, which works out to… what is bitcoin halving when is the next halving halving effect on price
- What Is a Meme Coin? A meme coin is a token whose value comes from attention rather than from any claimed function. There is no product, no… what is a meme coin meme coin meaning are meme coins a scam
- How Many Cryptocurrencies Are There? Tracking sites list tens of thousands, and the figure carries almost no information. Issuing a token costs cents and requires nobody's permission,… how many cryptocurrencies are there number of cryptocurrencies how many coins exist