When it comes to blockchain, Bitcoin often takes center stage globally. In 2023, Bitcoin primarily propelled the global digital currency market’s recovery. Despite facing the impact of the pandemic, Bitcoin continued to create historic milestones.
Especially since the Taproot upgrade in 2021, Bitcoin’s technical foundation has opened up new possibilities for embedding more data on the Blockchain, sparking a surge of interest in Bitcoin and the entire digital currency world.
In 2023, Bitcoin’s dominance in the total market capitalization of the cryptocurrency market rose from 38% at the beginning, to 52% by the end of the year. Taproot upgrade once again made the Bitcoin ecosystem the focus of global attention.
The Bitcoin ecosystem is not a new concept. Since the birth of Bitcoin, the exploration of its ecosystem has never ceased. The recent surge in popularity of the Inscriptions reflects the Bitcoin community’s strong demand for ecosystem expansion.
In April 2024, Bitcoin will undergo its fourth halving, presenting a significant challenge to miners’ income. The volatility of the Bitcoin price will significantly impact miners’ motivation. Bitcoin, with its core emphasis on security and decentralization, will face a severe challenge, making the expansion of the Bitcoin ecosystem more urgent.
Currently, the market capitalization of Bitcoin has exceeded $850 billion. If Blockchain development precedes the value trajectory, Bitcoin is likely to enter the next major growth cycle. Bitcoin is standing at a novel frontier, to perfectly combine traditional finance with decentralized, trustless financial models.
Taking Ethereum as an example, with its market capitalization only 1/3 of Bitcoin’s, its ecosystem constitutes 20% of its total market capitalization, with on-chain assets of about $50 billion.
If we calculate based on this ratio, the Bitcoin ecosystem should have at least $200 billion in growth space. However, the current value of staked assets in the Bitcoin ecosystem is only $300 million. This indicates that the Bitcoin ecosystem has a growth potential of up to 600 times, demonstrating its tremendous development prospects.
Bitcoin’s current market value and total market share.
Bitcoin Needs Layer 2 As the cornerstone of cryptocurrencies, Bitcoin is renowned for its security, reliability, and decentralized nature, making it a symbolic benchmark in the cryptocurrency realm. Bitcoin has consistently adhered to the safest methods of preserving value, ensuring the sacred inviolability of individual assets.
Despite lacking Turing completeness and the ability to execute smart contracts, and with its TPS(transactions per second) significantly lower than other blockchains, Bitcoin’s supporters firmly believe that Bitcoin doesn’t need substantial changes or risky technological innovations, to maintain its core security and decentralization.
The introduction of the BRC20 protocol resulted in a doubling of the Bitcoin price, attracting a significant influx of Inscription users to the Bitcoin mainnet. However, as the mainnet primarily serves as a store of value, it encounters challenges such as high interaction costs, slow confirmation speed, and difficulties in scalability.
The community is eager for the expansion of Bitcoin applications, and miners require stable income. Directly improving Bitcoin’s underlying protocols could lead to higher system risks, and threaten its core security and decentralization, resulting in hard forks and community divisions.
From Ethereum’s experience, the community leans towards adopting Layer 2 solutions. Layer 2 solutions process a significant amount of operations outside the mainnet and only write the final state back to the mainnet. It aims to improve transaction speed, reduce transaction costs, and address the current challenges faced by the Bitcoin ecosystem.
Considering the practical circumstances, Bitcoin’s Layer 2 solution should have the following characteristics:
Decentralized Cross-Chain: The decentralized cross-chain on mainnet’s consensus is crucial and an extension of Bitcoin’s philosophy. Existing cross-chain technologies, like hash time locks and multi-sigs, are mostly centralized and fail to provide sufficient trust guarantees. Only by achieving truly decentralized cross-chain can user trust be ensured, laying a solid trust foundation for Layer 2.
Secure and Efficient Layer 2: Layer 2 should not only support smart contracts, allow various protocols to use BTC as assets, but also fully inherit Bitcoin’s security, and provide fast and efficient transaction processing. At the same time, the status results should be effectively synchronized with the mainnet for confirmation.
Contributing to the Bitcoin Ecosystem: For Bitcoin users, Layer 2 loses its fundamental meaning if it lacks Bitcoin’s consensus. Using BTC as transaction fees (gas) is a crucial aspect of the Layer 2 narrative. Boosting miner’s income, sparking developer’s interest, and contributing to the development and innovation of Layer 2 can, in turn, promote the overall development of Bitcoin.
Technical Challenges in Decentralized Bitcoin Layer 2 Cross-Chain Solutions
Layer 2 refers to off-chain solutions built on top of the Bitcoin mainnet, aiming to preserve Bitcoin’s decentralization and security. Bitcoin faces unique challenges due to the Turing incompleteness of its mainnet, limitations in base layer block space, and the use of a simple UTXO model.
For example, Ethereum’s Layer 2 projects like Scroll use Layer 1 smart contracts to verify ZK Proofs generated from Layer 2. However, even after the Taproot upgrade, Bitcoin cannot implement complex OP/ZKP verification logic.
Bitcoin’s UTXO model, emphasizing one-time use, means that every contract invocation requires generating a new contract. While this helps prevent double-spending attacks and maintains security, it limits Bitcoin’s ability to directly replicate Ethereum-style cross-chain designs. Additionally, although Bitcoin’s supported Script Code is stack-based, the range of supported OpCode types is very limited, making it challenging to extend to computation-level contracts similar to Scroll’s ZK verification contracts.
Despite these challenges, the exploration of the Bitcoin ecosystem has been ongoing for many years, with multiple teams dedicated to overcoming these technical challenges:
Lightning Network: Lightning Network: Supporting fast, low-cost micropayments achieved through the creation of payment channels, with on-chain confirmations only at critical junctures. Key technologies include revocable sequence contracts and time-locked contracts, but it requires sufficient funds locked in payment channels, potentially leading to liquidity issues. Effective operation relies on widespread participation and an ample number of channels.
Stacks: Providing decentralized mining and bridging technology for Bitcoin, bringing Bitcoin liquidity into Stacks applications through protocols like sBTC. It adopts a proof-of-transfer consensus mechanism, where miners use BTC to mine STX. For cross-chain functionality, it utilizes a centralized bridge, and Stacks has its own chain, compiler, and programming language Clarity.
RGB: A Bitcoin smart contract system that integrates the Lightning Network. Transaction verification is completed by clients and is primarily used for asset issuance and transactions, with limited application scenarios.
Rootstock (RSK): Allowing Bitcoin miners to simultaneously process both BTC and RSK transactions. RSK supports EVM, facilitating Bitcoin’s expansion, but its security model differs from Bitcoin’s, raising concerns about the cross-chain security.
Liquid: Allows users to move Bitcoin between two networks using a two-way peg, utilizing 11 multi-sig nodes for cross-chain, which is relatively centralized. The sidechain design limits the use of complex smart contracts.
Various Bitcoin Layer 2 projects continue to emerge, each with its own compatibility design. The primary challenge for current Layer 2 teams lies in achieving decentralized cross-chain solutions and efficient Layer 2 solutions. As of now, there is no solution among existing projects that perfectly balances both aspects.
The Blayer protocol aims to bring revolutionary changes to the Bitcoin ecosystem. As an innovative BTC Layer 2 solution, Blayer focuses on achieving efficient and secure transfers from Bitcoin to Layer 2 in a decentralized manner.
It not only provides an efficient, secure, and scalable application platform but also supports the use of native BTC as gas fees through the developer-friendly BVM protocol.
This not only enriches and enhances the Bitcoin ecosystem, but also helps unearth value on Bitcoin, transforming it into a foundational blockchain asset, and fostering the development of a Web3 ecosystem based on Bitcoin.
The launch of the Blayer protocol signifies a crucial step towards a more efficient, secure, and diverse future for the Bitcoin ecosystem.
The Blayer protocol introduces the innovative Decentralized Cross-Chain Protocol (DC2P), enabling decentralized cross-chain communication between Bitcoin and the Blayer network. Through this mechanism, users can securely lock Bitcoin and cross chain to the Blayer network, utilizing the powerful capabilities of smart contracts within Blayer.
When a user initiates a cross-chain request, the Blayer protocol automatically performs Merkel hash verification of the user’s actions. Once verified that the user has transferred Bitcoin into the decentralized custody pool, the Privacy Fragment Integration Protocol takes over, locking the funds and ensuring that nodes do not generate the target private key while safeguarding encrypted privacy fragments.
These privacy fragments can only achieve aggregated signatures through aggregation operations, maintaining overall key security even in cases of individual or small-batch fragment loss or errors. This mechanism achieves decentralized private key management.
The Blayer protocol maps user assets on the Layer 2 network and performs bidirectional synchronization verification through the Mirror Consensus Protocol, ensuring the security of results between the mainnet and Layer 2. The management of Layer 2 nodes adopts a Byzantine Proof-of-Stake mechanism, ensuring the efficiency and decentralization of the network. Through Blayer’s decentralized cross-chain technology, Bitcoin users’ assets can circulate securely and efficiently between the mainnet and the Blayer network.
1.Merkle Hash Verification Computation (MHVC)
In the decentralized cross-chain process of Blayer, a key innovative technology is （Merkel Hash Verification Computation (MHVC).
This technology is dedicated to addressing the verification challenges in cross-chain transactions. The core of the MHVC protocol is to verify the actions of each party participating in the cross-chain transaction.
It rapidly confirms the legitimacy of transactions by comparing the Merkel hash of transaction data with the Merkel root hash in the block header, without the need to download complete block information. This process involves the following steps:
Obtaining Header Information: The protocol first retrieves header information from all nodes on the longest blockchain in the network.
Transaction Hash Calculation: Next, it calculates the transaction hash that needs verification.
Blockchain Node Traversal: By traversing the hash of blockchain node headers, the protocol locates and confirms whether the calculated transaction hash exists in the chain and retrieves the block height containing this transaction.
Merkle Root Hash Calculation: Based on the transaction hash, it calculates the Merkel root hash. If the node’s Merkel root hash matches the calculated result, the transaction is considered verified.
This approach not only enhances the efficiency of transaction verification but also reduces the data processing burden, thereby enhancing the overall system performance without compromising security.
A core feature of the Blayer protocol is its ability to facilitate secure and decentralized cross-chain transactions between the Bitcoin Layer 2 network and the mainnet. Users can securely lock their Bitcoin into Blayer, conduct transactions within the Layer 2 wallet, and efficiently transfer assets back to the mainnet account. The cornerstone of this process is the Privacy Fragment Integration Protocol (PFIP) technology.
PFIP distinguishes itself by ensuring consistency between Layer 2 wallet addresses and mainnet addresses, thereby guaranteeing the secure circulation of Bitcoin.
This technology incorporates several key innovative algorithms:
● Bridge Address Generation Algorithm: This algorithm is employed to create a dedicated custodial address pool. These addresses, generated by decentralized contracts, ensure the secure custody of assets.
● Privacy Fragment Processing Mechanism: When dealing with sensitive data like private keys, the algorithm divides it into multiple encrypted fragments. These fragments are dispersed and processed among different nodes, avoiding the direct generation of the target private key. Each node handles only a portion of the data, meaning that even if some data is leaked, reconstructing the complete sensitive information is impossible.
●Bitcoin Address Mapping Algorithm: This algorithm ensures the accurate and secure correspondence between addresses in the Layer 2 network and the mainnet.
The comprehensive application of these technologies not only enhances transaction security but also strengthens the overall privacy protection capabilities of the system. It provides robust technical support for the efficient and secure circulation of Bitcoin between the mainnet and the Layer 2 network.
Blayer incorporates its innovative Mirror Consensus Protocol (MCP) to facilitate bidirectional synchronization between the Bitcoin network and the Blayer network, enhancing the security and integrity of data. This protocol allows data to be mutually synchronized and verified between the two networks, ensuring the authenticity and tamper resistance of transaction data.
By leveraging Bitcoin’s consensus mechanism as a security cornerstone, MCP not only upholds the core integrity of Bitcoin but also establishes a framework for bidirectional communication and verification. This framework allows the Bitcoin network to interact more flexibly with Blayer’s ecosystem applications, significantly boosting the scalability and diversity of the entire ecosystem.
In summary, the MCP protocol is a crucial component of the Blayer protocol, providing a secure and efficient bridge for interaction between Bitcoin and Blayer. Simultaneously, it fosters diversification and innovation within the ecosystem. This innovative protocol introduces new possibilities for Bitcoin’s Layer 2 solutions and paves the way for the future development of the Bitcoin ecosystem.
The Ethereum Virtual Machine (EVM) ecosystem has several mature and market-proven projects. For the development of Bitcoin Layer 2, the optimal scenario involves the direct build and operation of these well-established projects on Bitcoin Layer 2.
In pursuit of this, Blayer introduces the Blayer Virtual Machine (BVM), supporting the development and deployment of smart contracts using the Solidity language. This empowers developers to build decentralized applications (DApps) on the Blayer platform using their familiar smart contract language, Solidity.
Blayer protocol incorporates a Swift Block Builder, an efficient data processing algorithm designed for the effective sorting of blocks. This not only amplifies the transaction processing speed and efficiency of the Blayer network but also makes a substantial contribution to the development of the Bitcoin ecosystem.
By integrating the EVM ecosystem in this way, Blayer aims to maximize the development and expansion of Bitcoin’s capabilities and scope. This positions Bitcoin not only as a store of value but also as a versatile and efficient blockchain platform.
Blayer Consensus Mechanism: Strengthening Security and Decentralization in Bitcoin Layer 2
Blayer, in designing its Layer 2 solution, closely adheres to the principles of the Bitcoin mainnet, prioritizing security and unwaveringly upholding its commitment to decentralization.
To achieve this, the Blayer consensus protocol cleverly integrates Byzantine Proof of Stake (BPOS) and Byzantine Fault Tolerance (BFT) mechanisms.
BPOS combines the efficiency of PoS with the robust security of BFT, enabling the Blayer network to effectively counteract malicious nodes and system failures, ensuring reliable operation in various scenarios.
BPOS not only reduces computational costs and enhances transaction processing speed but also maintains a high level of network security and fault tolerance, ensuring stable operation even when facing internal dishonest behavior or external attacks.
Regarding node management, Blayer employs a hybrid token model with BTC and native tokens as node staking, providing rewards for validators. Blayer enhances network security by periodically rotating nodes holding fragment addresses.
If a node engages in improper or malicious operations, it faces partial or complete loss of staked funds and may even be permanently banned from validation. This mechanism ensures fairness in network management while effectively mitigating centralization risks, further reinforcing the decentralization and security of the network.
Furthermore, Blayer utilizes BTC as Gas, not only promoting deflation in Bitcoin, but also creating additional income for miners. This initiative undoubtedly propels the development of the Bitcoin ecosystem, providing a solid foundation for the implementation of Bitcoin Layer 2 solutions.
The technical team of Blayer consists mostly of members from the native Bitcoin technology community. The core team has been deeply involved in the Bitcoin community for many years, possessing a profound understanding and practical experience with the Bitcoin mainnet. They have actively participated in significant Bitcoin events and contributed to the early codebase of Bitcoin.
Blayer aspires to be a frontrunner in the Bitcoin Layer 2 space, driving broader applications and widespread adoption of Bitcoin. Committed to upholding the purity and security of the Bitcoin network, Blayer is responsive to the community’s demand for ecosystem development, fostering the thriving growth of the Bitcoin ecosystem.
Blayer introduces a decentralized BTC Layer 2 solution based on mirror protocol, addressing the decentralized cross-chain challenge from the Bitcoin network to Layer 2.
The core technologies — Merkel Hash Verification Protocol (MHVC), Privacy Fragment Integration Protocol (PFIP), Mirror Consensus Protocol (MCP), and Byzantine Proof of Stake (BPOS) — collectively solve challenges related to decentralized cross-chain and bilateral verification of block information. Simultaneously, they facilitate the efficient utilization of Bitcoin in smart contract applications.
The launch of Blayer heralds explosive growth in Bitcoin ecosystem applications, with the potential to open up a trillion-dollar market for Bitcoin and provide long-term consensus security for the Bitcoin network.. This marks not only a technological milestone in Bitcoin’s development but also a significant contribution to the entire cryptocurrency space.
As the Bitcoin ecosystem continues to evolve, we can anticipate further advancements. Various Web3 platforms within the Bitcoin ecosystem can integrate with each other, potentially reshaping the global financial market and forging a true Web3 world. Blayer’s goal extends beyond achieving technological innovation; it aims to play a key part in advancing the entire cryptocurrency culture and community.