Author: Lucaskog

Compiled by: Qin Xiaofeng, Odaily Planet Daily

As the user base of Bitcoin continues to expand, network congestion, transaction delays, and transaction fees have surged. Especially in the second half of last year, the Bitcoin chain's Gas skyrocketed, reaching 600+ at one point.

In order to solve the scalability issues of Bitcoin, the second layer network (Layer 2) has emerged, but it is still in its early stages. Odaily Planet Daily has listed three expected BTC Layer 2 projects: B² Network, Merlin Chain, and BEVM, and provided a step-by-step guide for users.

Preparations for Participation

Obtaining Bitcoin test coins: Enter Unisat or OKX wallet, switch the network to the testnet, and open the faucet link to input the testnet wallet address to obtain test tokens: coinfaucet (generous, claim every 12 hours), bitcoinfaucet (can claim multiple times, but in small quantities), beyondfaucet (less stable).

Obtaining EVM test coins: Method 1, enter faucet to obtain USDC, fill in the EVM address to receive test coins; Method 2, obtain on Meson as shown below:

BSquared Network

B² Network, invested by HashKey Capital, OKX Venture, and Droplet Capital, has officially stated that 10% of the tokens will be used to incentivize early users, with 5% as mining rewards and the other 5% distributed through airdrops.

B² Network is divided into two layers for verification: the first layer is the Rollup Layer in B² Network, which uses ZK-Rollup to execute user transactions and generate related proofs. User transactions and state are stored in the ZK-Rollup layer, and batch proposals and generated zero-knowledge proofs are transmitted to the data availability layer for storage and verification. The other layer is the data availability layer, which includes decentralized storage, B² nodes, and the Bitcoin network. The B² nodes have multiple modules, including incentive mechanisms, verification modules, sorters, and Bitcoin submitters.

Decentralized storage is the repository for ZK-Rollup user data and proofs, which enhances security and data reliability through distributed storage. They respectively ensure the accuracy of data storage, the accuracy and efficiency of verifying transactions and state generation, decentralization, and data security. The Bitcoin network is the final settlement layer of B² Network, where users can audit all B² rollup transactions and use proofs on Bitcoin to verify their authenticity. The entire process relies on Bitcoin's proof-of-work algorithm to ensure the security of B² Network.

Participation Process

(1) Participate in bsquared Odyssey

The official has opened a point system, and in the future, it may measure the airdrop quantity with points. Participate in Odyssey to complete corresponding basic tasks, cross-chain interactions, and friend invitations to receive point rewards.

The cross-chain of Odyssey tasks is from the BTC testnet to B² Network, which belongs to the layer 1 interaction. Link Unisat and Xverse wallets from the page, and cross-chain the received test coins over.

The joint Odyssey activity of BSquared and Meson, enter the Meson official website, connect the EVM wallet, select a testnet, and cross-chain the received test coins to the B² testnet to receive points.

(2) Participate in B² Buzz

B² Network has launched a Buzz Campaign, where users can deposit Bitcoin, BRC-20 ORDI, SATS, wBTC, USDT on Ethereum, BTCB, FDUSD, and Matic on the BNB chain to receive a certain amount of parts, used to assemble mining equipment to mine B² native tokens ("mining" refers to virtual mining machines used to mine B² native tokens as rewards). The pledged assets can be withdrawn in April. The activity simulates BTC native mining, with the reward production halving every month. Production follows a schedule of 2.5% in the first month, 1.25% in the second month, 0.625% in the third month, and so on.

Essentially, this is a team invitation activity where players enter the team through an invitation code. The more assets (using BTC as an example) staked in the team, the better the parts received, and the mining speed will also increase. By holding core assets in the Bitcoin ecosystem, users can also receive airdrops of components such as ORDI, Atom, Sats, and Rats.

Merlin Chain

Merlin Chain is a Bitcoin layer 2 built by the BRC 420 team. From the recent increase in BRC 420 and Bitmap, it is evident that Merlin Chain is a good potential opportunity. The official has stated that they will launch the largest fair launch of the Layer, and participation in gas consumption will earn points.

Merlin Chain uses ZK-Rollup to compress a large number of transaction proofs into a simple checksum to improve transaction efficiency and scalability. The sorter nodes on Merlin Chain are responsible for collecting and batch processing transactions, generating compressed transaction data, ZK state roots, and providing proof through zkEVM. Then, the compressed transaction data and ZK proof are uploaded to the decentralized Oracle network on Bitcoin L1's Taproot. This Taproot is available for the entire network to ensure transparency and security. Currently, Merlin Chain has connected to 40 EVM chains. Merlin Chain will integrate the first multi-chain inscription DApp, allowing users to mint assets on other layers of Merlin Chain (including Bitcoin L1).

The official has not yet launched any participation tutorials, but the testnet is already online. After receiving test coins, users can interact on the testnet and cross BTC from the testnet to Merlin, with a minimum of 0.00001 BTC, and a minimum of 0.00001 as fees for crossing back.

BEVM

Led by Droplet Capital, the project team has announced a transparent airdrop. BEVM aims to build a decentralized BTC Layer 2, using BTC as gas and compatible with EVM, allowing various applications in the EVM ecosystem to be seamlessly and easily deployed on BEVM, thereby increasing the use and consumption scenarios of Bitcoin. In order to better maintain the security of the Bitcoin network, BEVM will launch BEVM-Stack in the future, which will help high-throughput developers and Bitcoin projects build their own BTC Layer 2. Unlike the previous two projects, BEVM uses Taproot multisim for threshold signatures to improve the fault tolerance of BTC cross-chain transactions.

The official has already launched the Odyssey activity.

The activity has opened several ways to earn points: 1. Cross BTC to EVM wallet using the official cross-chain bridge; 2. Cross a certain amount of BTC through a third-party cross-chain bridge; 3. Complete basic tasks on the Galaxy platform; 4. NFT platform trading activities.

Unlike the previous two layer 2 networks, the BEVM activity requires real money to be spent, a certain amount of gas to be consumed, and may also face cross-chain risks, so participants need to consider carefully.

Conclusion

With the official approval of Bitcoin spot ETFs and numerous investment institutions announcing support for the development of the Bitcoin ecosystem, the next bull market may be triggered by the Bitcoin ecosystem. Compared to Layer 2 projects in the Ethereum ecosystem, BTC Layer 2 is still undervalued. The projects mentioned in this article with expected coin launches can be strategically invested in, and are likely to bring good returns in the future.

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