Why is Symbiosis's cross-chain solution worth paying attention to?

Written by: cmdefi

Symbiosis's implementation of BTC cross-chain is quite clever. Currently, there are many wrapped BTC options, such as WBTC and tBTC, but for ordinary people, directly swapping WBTC for BTC is still not very convenient. Additionally, directly swapping native BTC for assets on other chains is also quite difficult. Previously, most of this was done through Thorchain, and Symbiosis is another option for the future. Let's take a look at the implementation process:

1. BTC Forwarder

When a user initiates a cross-chain transaction, the BTC Forwarder component in the Symbiosis system begins to work. Its role is similar to that of a "monitor," responsible for monitoring the Bitcoin network and waiting for the user's transaction to transfer Bitcoin to a specified address. When it detects that the user's BTC has been successfully sent, it will provide feedback to the system for the next steps.

2. Relayers

Next, the Relayers network intervenes. Its role is similar to that of a "coordinator," responsible for transmitting information between different chains and keeping all operations synchronized. Its function is to ensure that the BTC waiting to be cross-chained is locked, while also notifying the target chain that the BTC has arrived and that the next steps can proceed.

3. syBTC

During the cross-chain process, Symbiosis cannot change the nature of the Bitcoin network; native BTC is not directly sent to another chain. Instead, it is locked in a "vault" within the Bitcoin network, which is managed by the Relayers network. Then, a wrapped asset, syBTC, is minted on the target chain.

4. Obtaining Target Tokens

Ultimately, on the target chain, syBTC will be swapped for the target asset (though the current supported volume is still very small).

Overall, its implementation method appears complex but is actually quite simple, based on the logic of locking -> issuing. However, its locking method is relatively decentralized, and the track is very vertical. The goal is to support an increasing number of chains and assets, providing a more convenient way for BTC's multi-chain liquidity. It has received a $2 million investment from institutions such as Binance Labs and DWF, and the narrative of "activating more BTC" aligns well with the tone of the times.

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