Recently, the OP_CAT protocol has made the BTC ecosystem lively again, with the Fractal Bitcoin Mainnet Money Laundering soaring. However, in stark contrast to this craze, there has been strong criticism of ETH's L2 in the market, which has even sparked serious discussions about whether the ETH roadmap needs to be modified. At the root of this debate is whether to ignore the development of L1 itself and prioritize the development of L2, which could lead to liquidity fragmentation and the failure of L1 value capture.

However, the BTC ecosystem is not all prosperous, and it faces many problems that need to be addressed and solved, just like ETH. For example, there are limitations in the ecosystem's transaction processing capacity, scalability, and Smart Contract functionality. In addition, network congestion often leads to increased transaction latency and costs. Although there are solutions such as the Lighting Network and Sidechains, there is still no widely recognized scalability solution for BTC.
And this dilemma also brings about thinking for other encryption ecosystems. For the BTC ecosystem, which is also vigorously developing L2, how to handle the relationship between L2 and BTC itself is a major proposition. However, there is a project, exSat, that does not want to be BTC's L2, but is thinking about how to use technological innovation to find a way to connect to the BTC network and its L2 in a way that is as close to BTC L1 as possible.
What is exSat? Innovation in the docking layer.
The BTC ecosystem is currently undergoing a paradigm shift, gradually expanding from a simple financial asset to various DApps. However, the special mechanism of BTC has made its ecological development progress relatively slow. With the occurrence of Halving, the business development cost of the BTC ecosystem is also rising, forcing Miners to improve their infrastructure and seek additional income.
As mentioned earlier, there are countless Layer2 solutions waiting to be deployed in the BTC ecosystem, but they will also face the same problems as Ethereum. The launch of exSat is to address these challenges and propose a Docking Layer solution. This new term may be difficult to understand at first glance, but in layman's terms, exSat will serve as an intermediary service among BTCMainnet and various Layer2 solutions.
The reason for the emergence of such a solution is partly due to the poor income of Miners, and partly because the current BTC L2 has not achieved the desired effect.