MultiVAC is a High-Throughput Flexible Blockchain Platform based on trusted sharding computation.
MultiVAC is a next-generation high-performance public blockchain for industrial-scale decentralized applications. Its trusted sharding technology allows for unlimited and sustainable scalability, and it provides a novel approach towards solving the blockchain scalability problem currently preventing mainsteam blockchains from reaching industrial capability. MultiVAC is the first to propose a sharding model based on Verifiable Random Functions (VRF) and applies this model to transactions, computation, and storage.
Transactions are confirmed in the network through a classic UTXO model with miners dynamically selected through a probability model. MultiVAC allows for the high levels of safety and reliability needed by industrial applications while only requiring processing on a small number of nodes, producing significant speed improvements.
On top of our fast and scalable blockchain model, MultiVAC is the first in the industry to provide a computational model for smart contracts which allows developers to flexibly decide for themselves the tradeoff between consistency, availability, and partition tolerance, parameters that are often stiffly fixed by the designs of many public blockchains. It is achieved by providing a general-purpose virtual machine MVM equipped with a specially designed blockchain instruction set (BISC) and a powerful method to validate the correctness of smart contract executions (PoIE). With this suite of breakthroughs, MultiVAC is extremely fast, totally scalable, and robustly allows for the development of extremely complicated business logic on its application layer, an ideal blockchain to serve as the foundational layer of a public diversified blockchain ecosystem.
With the same node scale, MultiVAC can achieve two orders of magnitude credibility and over 10000 times TPS as bitcoin, which will fully meets the needs of large-scale applications.
MultiVAC separates transactions and smart contracts/computation and provides an optional slide of CAP for DApps to make their own infrastructure of performance and decentralization level.
There will be an economic model and an efficient free market in which Nodes can benefit from bookkeeping, computing and saving, leading to obvious increasing and network effect.
MultiVAC solves three fundamental problems:
1. How to create shards from network nodes for transaction and smart contract processing in a trustworthy manner, allowing the network to scale.
2. How to process transactions and update records using trusted shards in the use case of transaction processing.
3. How to verify the correct and honest execution of smart contract code by network nodes in the use case of smart contract processing.
MultiVAC creates shards through a novel probability model based on Verifiable Random Functions (VRF), solving the problem of how to safely, efficiently, and randomly shard the network.
It uses the Byzantine consensus family to reach internal consensus within a shard, achieving the construction of trustworthy shard-based consensus. The blockchain is ready for smart-contract deployment by designing an optimized virtual machine MVM capable of general-purpose computation, which is equipped with a special blockchain instruction set BISC, and which verifies correctness of contract execution through Proof of Instruction Execution (PoIE). This creates a not only trusted but also flexible execution environment that allows for the execution of complicated general-purpose business logic.
Support for General-Purpose Computation
Blockchain VMs today are rather limited in handling complicated general-purpose computation. Future smart contracts and DApps require VMs to not only be Turing-complete but also for their instruction sets to support more complicated logic.
Support for Compilation from Multiple High Level Languages
MultiVAC is an open-source ecosystem designed to be highly friendly to developers, providing a robust compilation environment for many high level languages to support smooth migration of existing programs onto our platform.
Effective Use of Hardware, Allowing for Implementation of our Instruction Set as a Hardware Computer
Present-day blockchain systems cause low-level hardware to suffer a large loss in potential performance when compiling or interpreting VM bytecode. MVM redesigns and upgrades a mature CPU instruction set, holding the potential to one day be directly installed as a hardware computer. This makes it possible for computers to naturally become MultiVAC nodes while still being computers used for desktop or mobile purposes, and would allow for a seamless switch between personal computer and miner.
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