How does the Avalanche Bridge™ work? | Avalanche Support (2024)
To initiate bridging from Bitcoin to Avalanche®, a transaction is sent on Bitcoin from Core transfers BTC to the bridge address controlled only by the SGX enclave. The bridge is designed to only support Pay-To-Witness-Public-Key-Hash output types on Bitcoin. In order to ensure that the BTC transfer has this output type and meets all of the bridging requirements, users should always use the bridge UI in the Core Wallet extension that is built to provide a quick and easy bridging experience. Once this transaction is accepted into a block on Bitcoin and receives the necessary number of confirmations, it will be indexed by the Bridge Nodes and reported to the Intel SGX application for processing. All transfers across the Bridge must be approved by Bridge Nodes that secure and back-up an encrypted piece of the Bridge’s keys. At this point, the SGX application mints (creates) the equivalent amount of BTC.b to the user wallet that sent the initiating Bitcoin transaction.
Similarly, when moving BTC.b from Avalanche back to Bitcoin, the user sends a transaction on Avalanche that calls the “unwrap” method of the BTC.b contract, which burns (destroys) the BTC.b tokens. The Bridge Nodes will index this transaction, and it will be processed by the SGX enclave by sending the equivalent amount of native BTC back to the user’s wallet on Bitcoin
When moving assets from Bitcoin to Avalanche, the bridge fee is currently $3 worth of Bitcoin at the time the transfer is processed. When moving assets from Avalanche to Bitcoin, the bridge fee is $20 plus the expected Bitcoin transaction fee. The expected transaction fee varies with the current Bitcoin fee rate and the size of the transaction but is typically less than $2. You can find more information regarding the expected Bitcoin transaction fee in the "Bridge Fees" section here.
When Bitcoin is bridged to Avalanche, it is represented by an ERC20 token on the Avalanche C-chain with the symbol BTC.b. The “.b” indicates that the token was bridged from the Bitcoin network, just as Avalanche Bridge™ tokens bridged from the Ethereum end in “.e”. Each BTC.b token is fully backed by a Bitcoin locked by the bridge enclave application. The BTC.b token contract can be found here, and the bridge enclave application Bitcoin address can be viewed here.
For any additional questions, please view our other knowledge base articles or contact a support team member via the chat button. Examples are for illustrative purposes only.
Avalanche is a smart contracts platform that scales infinitely and regularly finalizes transactions in less than one second. Its novel consensus protocol, Subnet infrastructure, and HyperSDK toolkit enable Web3 developers to easily launch powerful, custom blockchain solutions.
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Bridge™ work? To initiate bridging from Bitcoin to Avalanche®, a transaction is sent on Bitcoin from Core transfers BTC to the bridge address controlled only by the SGX enclave. The bridge is designed to only support Pay-To-Witness-Public-Key-Hash output types on Bitcoin.
Avalanche blockchain nodes determine the validity of incoming transactions using the Snowball Algorithm, in which validators vote on each transaction value until everyone on the network agrees. Another unique feature of Avalanche's validation process is it doesn't impose a "slashing" penalty on validators.
On the platform, set up the direction you wish to bridge your asset. Select the Source chain in the From this network section and the destination chain in the To this network section.
Select the asset you wish to bridge and set the amount as well. ...
The Avalanche Bridge™ is secured by Intel SGX technology, which restricts how transfers are performed, including that no funds can be released unless there's a corresponding transfer of coins, and no one, not even system administrators, has access to the keys that control funds.
The best way to bridge from AVAX to Optimism is through a trusted cross-chain DEX that facilitates swaps between the Avalanche C Chain and the Optimism L2. For the lowest fees, fastest transfers, and least amount of slippage between chains, we advise using the Synapse Protocol.
How does the Avalanche Bridge™ work? To initiate bridging from Bitcoin to Avalanche®, a transaction is sent on Bitcoin from Core transfers BTC to the bridge address controlled only by the SGX enclave. The bridge is designed to only support Pay-To-Witness-Public-Key-Hash output types on Bitcoin.
What is the avalanche method of paying off debt? The debt avalanche method targets your most expensive credit cards and loans first. You'll start by making the minimum-monthly payment on each of your accounts.Then, you'll allocate any extra cash toward the debt with the highest interest rate.
How long does an Avalanche Bridge™ transfer take on each network? The Ethereum network transaction will typically take approximately 20 minutes (96 confirmations). The Bitcoin network transaction will typically take approximately 1 hour. The Avalanche network transaction will typically take a few seconds.
In conclusion, bridging tokens from Avalanche to Ethereum is a process that allows users to move assets freely between the Avalanche (AVAX) and Ethereum (ETH) networks. The process is relatively straightforward and can be done in a few steps.
Is Avalanche better than Ethereum? While Avalanche offers faster transaction times and lower fees, Ethereum is still by far the biggest blockchain network for deploying smart contracts.
The platform aims to solve blockchain technology's issue of achieving an effective combination of speed, scalability, security, decentralization and interoperability. Avalanche is an ecosystem for building DApps, creating tokens and developing blockchain-based games.
Wait for your cross-chain bridge transaction to Optimism to complete. You will then receive your bridged tokens on Optimism. 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.
Staking via delegating your AVAX is the simplest solution that allows you to earn rewards and keep full custody of your AVAX. Staking via a centralized exchange: Exchanges such as Coinbase and Binance provide support for AVAX staking.
Explore the multi-chain architecture of Avalanche ecosystem. A Subnet is a sovereign network which defines its own rules regarding its membership and token economics. It is composed of a dynamic subset of Avalanche validators working together to achieve consensus on the state of one or more blockchains.
Scalable without compromising decentralization. Compatible with applications from other blockchains. Very fast transaction speeds at low costs. Opportunities to create tokens and subnetworks.
What Is Avalanche Breakdown? The avalanche breakdown occurs when a high reverse voltage is applied across the diode. As we increase the applied reverse voltage, the electric field across the junction increases. This electric field exerts a force on the electrons at the junction and frees them from covalent bonds.
Using wireless communications, Wyssen Avalanche Towers deploy explosive charges that hang just over ground to trigger an avalanche. Previously, avalanche and road crews used howitzers to trigger approximately 330 controlled avalanches each season.
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