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Crypto Basics
Crypto BasicsWhat is Polygon (POL)?
Polygon PoS opened in 2020 as Matic. On 4 September 2024 POL replaced MATIC as the native coin, one for one. MATIC left on Ethereum did not convert by itself. The chain checkpoints to Ethereum and is not Ethereum.EasyCryptoGuides · · 2 min read
Crypto BasicsWhat is KuCoin Token (KCS)?
KCS launched in 2017 as an ERC-20 with a stated supply of 200 million. KuCoin pays a trading-fee bonus to KCS sitting on the exchange. Ethereum KCS is not the gas coin of a KuCoin chain.EasyCryptoGuides · · 2 min read
Crypto BasicsWhat is Ethereum Classic (ETC)?
On 20 July 2016 Ethereum rewrote history to undo The DAO. Miners who kept the original ledger were named Ethereum Classic. ETC is that chain. It did not move to proof of stake.EasyCryptoGuides · · 2 min read
Crypto BasicsWhat is Cronos (CRO)?
CRO started as an exchange token. Crypto.org Chain opened in March 2021 and the Cronos EVM chain in November 2021. Ethereum CRO, native CRO, and the EVM coin share a ticker and not an address.EasyCryptoGuides · · 2 min read
Crypto BasicsWhat is OKB?
OKB started as a fee-discount token for the OKX exchange. In August 2025 the company burned treasury and buyback tokens and set the supply at 21 million. X Layer, an Ethereum layer 2, uses OKB for fees.EasyCryptoGuides · · 2 min read
Crypto BasicsWhat is PAX Gold (PAXG)?
PAX Gold launched on 5 September 2019. Paxos says each PAXG is allocated to one fine troy ounce of a London Good Delivery bar. You redeem through the company. A transfer does not collect the metal.EasyCryptoGuides · · 2 min read
Crypto BasicsWhat is Tether Gold (XAUt)?
Tether Gold launched in January 2020. TG Commodities says each XAUt is a claim on one fine troy ounce of a specific London Good Delivery bar. You redeem through the company, not by sending the token to a vault.EasyCryptoGuides · · 2 min read
Crypto BasicsWhat is UNUS SED LEO?
LEO is a token iFinex sold in May 2019. One billion were issued, on Ethereum and on EOS. Holding it can cut Bitfinex fees. The burn is a company promise, published on the company’s own page.EasyCryptoGuides · · 2 min read
Crypto BasicsWhat is BNB?
BNB started in 2017 as a token Binance sold for fee discounts. It is the gas on BNB Smart Chain, an EVM chain with a small validator set. A bnb1 address is a retired chain.EasyCryptoGuides · · 4 min read
Crypto BasicsWhat is Zcash (ZEC)?
Zcash lets you send in the open or in a shielded pool. The cap is 21 million ZEC. Since the 2024 halving the subsidy is 1.5625 ZEC, and a slice of that is kept for grants and a fund, not paid to the miner.EasyCryptoGuides · · 3 min read
Crypto BasicsWhat is Chainlink (LINK)?
LINK is the asset of the Chainlink network. Blockchains cannot see a market price on their own. Chainlink’s operators fetch it and sign it. LINK pays them. A wrong feed is still possible.EasyCryptoGuides · · 4 min readStuck on a definition? Glossary · Ask EasyCryptoGuides · Start here path