Today, as digital currency and blockchain technology continue to evolve, Lambda Storage has officially changed its name to LWS (Lambda Web3 Service) and launched a number of important feature and service updates. With the launch of the testnet on March 14, 2023, Lambda will further enhance the storage capabilities of Web3.
1. The history of Lambda and LPDP algorithm
Three years have passed since Lambda first announced its LPDP algorithm and launched its storage network in 2019. During this time, the Lambda team made significant upgrades to the storage network and integrated its consensus network with the Cosmos SDK. After five years of verifying the reliability and security of distributed storage technology, the Lambda team conducted in-depth exploration of user and business needs and launched a version called "Spark Upgrade".
Introduction to LPDP algorithm: LPDP (Lambda Proof DP) algorithm, as the core of LWS, ensures the validity and security of data. This algorithm was officially released in 2020. The following are its main principles:
Data label generation: The user generates a label for each piece of outsourced data, which is signed by the user.
Random challenge: The challenger randomly challenges an outsourced data block containing random numbers.
Proof calculation: The storage provider calculates the proof based on the challenge’s data block content, tag information, challenge information and random numbers generated by itself.
Verification: The verifier uses the challenge, the proof, and the user’s public key as parameters to check whether the storage miner owns the data, which is achieved through the bilinear properties of the mapping function.
2. Technical architecture of LWS
With the Spark upgrade, LWS will directly implement valid data storage verification through PDP and Sector contracts running on LEVM, which are decoupled from the Lambda Network consensus network. The main actors involved in the process include:
Users: data storage demanders and data trustees
Users entrust their data to the Lambda Storage Network (LWS) for permanent storage. Users obtain and use the storage network through Filecoder, and Filecoder signs and generates labels for data blocks. The tag data is entered into the challenge information list and disclosed to the entire network. In the next version upgrade, paid data will be regarded as permanently stored data.
Storage provider: data storage capacity provider (storage miner)
Storage miners need to provide storage services and prove their reliability to the network in order to receive incentives. Storage miners synchronize user data with their own storage capacity and ensure data security and reliability.
3. Core features of Spark upgrade
The Spark upgrade is not just a name change, but also a major improvement in the technical architecture. Here are some key features:
1. Native support for EVM contracts: LWS now natively supports Ethereum Virtual Machine (EVM) contracts, which means developers can leverage existing Ethereum tools and ecosystem to easily port their applications to the Lambda network.
2. Innovative storage proof and incentive allocation: LWS innovatively implements storage proof and storage incentive allocation on top of the LEVM contract, which will further enhance users’ trust in storage services and encourage more storage providers to participate. .
3. Data integrity verification module: The Lambda team has upgraded the data integrity verification module to ensure that the data will not be tampered with during storage, thus enhancing the security of the entire network.
4. Looking to the future
With the launch of LWS, Lambda Network will play a larger role in Web3 storage. This not only provides users with more efficient storage solutions, but also provides developers with a more flexible development environment. In the future, with further development of technology, LWS is expected to become the leader in decentralized storage.
Conclusion
Lambda’s Spark upgrade marks a major advancement in Web3 storage technology. Through the LPDP algorithm and innovative technical architecture, LWS will provide users and developers with a safer and more efficient storage experience. With the launch of the test network, we are worth looking forward to future development.