Thread by @days__nft

@tomasgauthier fundamentally polygon is a different blockchain from ethereum, they use MATIC as their native token (for paying fees)

@tomasgauthier however you can also have different tokens on polygon (e.g. USDC, or NFTs), just like on ethereum.

in its architecture, polygon is similar to ethereum anyway, you could call it a knock off.

@tomasgauthier now one of the assets you can use on polygon is ETH. strictly speaking it would be WETH (wrapped ETH), as it’s not the ‘native asset’ form.

you get it by bridging ETH from the ethereum main net to polygon (or buy it on polygon directly, eg via QuickSwap).

@tomasgauthier bridging means you send your ethereum ETH into a smart contract on ethereum, and at the same time a smart contract on polygon releases WETH for you.

living on two separate blockchains, those contracts can’t interact fundamentally…

@tomasgauthier … so you’ll have to trust the bridges operator to not cheat you.

REN Protocol is a (BTC-ETH) Bridge that’s famous for not requiring this trust, but it’s not available for polygon.

@tomasgauthier so for polygon, you’d use the official bridge: wallet.matic.network

you need ETH in an ethereum wallet, and it will give you weth into your polygon wallet. both will have the same address, but live in different networks.

@tomasgauthier alternatively, maybe you can get funds into a polygon wallet on another way? maybe your exchange (ascendex, okey, ramp network) allows withdrawals of matic, used or eth directly on polygon?

@tomasgauthier finally, let me say this. using eth on polygon works flawlessly, it’s just like any other token.

this is why it’s *a little* strange why opensea uses this as payment currency on polygon. they could have chosen MATIC or USDC as well.