How to Bridge USDC from Avalanche Network to Ethereum Mainnet
Celer cBridge makes it quick, easy, and secure to bridge USDC from Avalanche Network to Ethereum Mainnet and from Ethereum Mainnet to Avalanche Network by following these simple steps:
Step 1:
Connect your wallet by clicking on the “Connect Wallet” button above in order to begin your cross-chain transfer.
Step 2:
Select “Avalanche” in the “From” dropdown menu, select “Ethereum Mainnet” in the “To” dropdown menu, and select “USDC” for the asset type you wish to bridge to Ethereum.
Please Note: You will have to switch your wallet’s network to Avalanche Network in order to perform the cross-chain bridging of USDC from Avalanche to Ethereum.
Step 3:
Input the amount of USDC you would like to transfer from Avalanche to Ethereum in the “Send:” field. The estimated amount of wrapped USDC (fUSDC) that will be bridged to Ethereum will be displayed in the “Receive (estimated)” field.
Step 4:
Review all of the Ethereum bridge transfer information and USDC estimates. If all of the cross-chain bridging transaction information is correct and acceptable, click the “Transfer” button and approve the transaction prompts to begin the cross-chain transfer.
Step 5:
Wait for your cross-chain bridge transaction to Ethereum Mainnet to complete. You will then receive your wrapped USDC (fUSDC) on Ethereum.
Please Note: Most cross-chain transfers are completed almost instantaneously, however some may take as long as 20 minutes to complete depending on how much traffic the chain is experiencing.
If you wish to see more details about the bridge transaction from Avalanche to Ethereum, you can click the links in your “Transfer History” tab.
For a more in-depth step-by-step guide on cross-chain transfers and crypto bridging see our full tutorial here:
https://cbridge-docs.celer.network/tutorial/cross-chain-transfer
USD Coin / (USDC) Current Information
Description
USD Coin or more commonly referred to as USDC is a digital dollar where $1 of USDC is equal to $1 USD. USDC is one the most popular stablecoins because of the level of transparency of the collateralized assets. As collateral, every USDC is backed by cash and short-term U.S. government bonds, so for every 1 USDC in circulation it is backed by $1 USD. Hence, many refer to USDC as a fiat-collateralized stablecoin.
As a digital dollar, USDC is available 24/7 and is native to the internet. Some common use cases for USDC is to purchase it for a medium of exchange, using it on exchanges, storing in crypto wallets, fund purchases and trade for other cryptocurrencies.
Our cross-chain bridge, cBridge, supports the cross-chain bridging of USDC 
between multiple chains with the fastest speeds, lowest costs, and most secure transactions available. The full name of this asset is USD Coin and the ticker of this asset is USDC.
Avalanche Network Information
Avalanche, as a layer one blockchain, is an open programmable smart contracts platform for decentralized applications. Similar to other layer one blockchains, Avalanche supports a wide spectrum of applications related to DeFi, gaming, NFTs, the metaverse, as well as support for stablecoins. Avalanche is composed of three key components that make up the blockchain: (1). The Platform Chain (P-Chain) which coordinates validators and the creation of subnets, (2). the C-Chain for the creation of smart contracts, and (3). the X-Chain for managing and exchanging assets.
As an Ethereum Virtual Machine (EVM) compatible platform, applications that are built using the Ethereum programming language Solidity are also able to be deployed on Avalanche with minimal modifications. This enables developers from one of the largest and widely adopted blockchain communities to build on Avalanche and to deploy custom private or public blockchains as “subnets.”
Ethereum Mainnet Information
Ethereum is a decentralized blockchain platform that provides open access to digital money and data-friendly services. It is a community-built technology that is responsible for Ether (ETH) also referred to as Ethereum, as well as many different decentralized applications (dApps) that many people use today. With their tools and unique programming language, Solidity, Ethereum’s users can create, publish, monetize, and use applications on the platform, while using its Ether (ETH) cryptocurrency as payment. Ethereum allows you to move money, or make agreements, directly with someone else while serving as a decentralized public ledger for verifying and recording those transactions.
What is a Blockchain/Crypto Bridge?
Blockchain or Crypto bridges work just like the real thing, but instead of connecting physical places together, they are used to connect digital ecosystems together. These bridges can pass both information and assets between the bridged blockchains. We call this a cross-chain transfer.
As an example, if you have a need to use USDC on Ethereum, but you have USDC on Avalanche Network and not on Ethereum Mainnet, you could either deposit more USDC directly on Ethereum or you could find Ethereum bridge that will bridge your USDC from Avalanche Network to Ethereum Mainnet so you do not have to spend more to get additional USDC just because that USDC is already on Ethereum.
There are also different types of bridging in terms of how the cross-chain transfer is done from a technical standpoint. There is liquidity-based bridging where there are liquidity pools of an asset on both the source and destination blockchains. There is also canonical-based bridging where an asset is locked on the source chain and a new asset that represents that locked asset is created on the destination chain.
Bridging and cross-chain transfers are not limited to just normal assets or fungible tokens either. Bridges can transfer and move non-fungible tokens (NFTs) between chains as well. cBridge supports 2 main models when it comes to NFT bridging, pegged NFT bridging and multi-chain native (MCN) NFT bridging. Pegged NFT bridging is similar to the canonical-based bridging mentioned above. The NFT is locked on the source chain and a new NFT that represents that locked NFT is created, or minted, on the destination chain. In the MCN NFT bridging model, however, a MCN NFT does not have the notion of “origin chain” or "original NFT". When transferring an MCN NFT from chain A to chain B, the only pattern is "Burn-and-Mint" so that there is always only one NFT across all of the chains.
Then there are the different levels of “trust” you can have in a crypto bridge. The two main types are trusted and trustless bridges. Trusted bridges depend on a central system or entity and require you to put your trust in them if you wish to use their bridge. Trustless bridges, like our own cBridge, are completely controlled by and run on automated smart contracts and algorithms that have the same security and stability as the blockchain itself.
Things start to get a more complex from there so if you are interested in learning more about the different types of bridges and the tech behind them, you can read through our documents here: https://cbridge-docs.celer.network/
What are the Benefits of Using a Blockchain/Crypto Bridge?
There are many reasons you may want to use a bridge to do a cross-chain transfer between different blockchains:
Lower transaction fees
You can take advantage of platforms with lower transaction fees and higher speeds when compared to more congested chains, like Ethereum Mainnet. Especially when exploring different decentralized applications (dApps). You can look at alternative chains, like BNB Chain, and bridge your USDC, or whatever other asset you wish to bridge, from Ethereum to BNB Chain. You can then get some of that chain’s utility token and will be able to enjoy the lower transaction fees and higher speeds afforded to chains like BNB Chain.
Take advantage of other dapps and opportunities on different blockchains
If you’ve been providing liquidity for lending out USDT on Avalanche Network, but see that the interest rate for lending USDT on Ethereum Mainnet is significantly higher; you can use a cross-chain transfer to move your USDT from Avalanche Network to Ethereum Mainnet in order to take advantage of that higher interest rate.
Explore other blockchain ecosystems
The Web3 world is growing fast and you now have more options than ever before when it comes to different blockchains and dApps on those chains. There are many different compelling reasons why developers are building on the chains they are and with all of this diversity it makes it difficult to select a chain to invest in. Bridges and cross-chain transfers help solve this issue. By giving you the ability to bridge assets like ETH, USDT, USDC, and BTC to different chains, this opens up your options when it comes to being able to explore alternate L1 chains and the native dapps and services that they provide.
