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Minimal implementation of blockchain
Written in CSharp
[email protected]
A fork of minichain which implements more advanced features such as VM and SmartContract stuffs.
(minichain project pursues the minimal codes, That's why I made another project.)
- P2P communication between nodes
- How to create(mine) a new block and distribute to chain
- Consensus based on
Proof of work - Store/Retrive data(state) into blockchain
- Signing transaction (Using asymmetric key validation)
- Execute a program on blockchain network via
minidity
You can also learn (See example projects)
- Create a hardfork update to ongoing blockchain.
- Bad node attack
- Demonstrate 51% attack on blockchain network
- State DB implementation
- coldog - offline wallet solution for mchain
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Consensus
- Proof of Work
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Block Structure
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Block Validation
txsmust be a non empty array (except genesis-block)txs[0]must be a reward transaction.- Check the block has valid minerAddress
- Check the block proper difficulty
- Check the nonce with block difficulty