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https://github.com/morion4000/javascript-blockchain
JavaScript (naive) implementation of a Blockchain
https://github.com/morion4000/javascript-blockchain
blockchain elliptic-curves proof-of-work sha256
Last synced: 13 days ago
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JavaScript (naive) implementation of a Blockchain
- Host: GitHub
- URL: https://github.com/morion4000/javascript-blockchain
- Owner: morion4000
- Created: 2020-01-28T16:37:42.000Z (almost 5 years ago)
- Default Branch: master
- Last Pushed: 2022-11-23T18:38:32.000Z (almost 2 years ago)
- Last Synced: 2023-04-03T13:45:10.944Z (over 1 year ago)
- Topics: blockchain, elliptic-curves, proof-of-work, sha256
- Language: JavaScript
- Homepage: https://www.morion4000.com
- Size: 104 KB
- Stars: 0
- Watchers: 2
- Forks: 0
- Open Issues: 5
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Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# JavaScript Blockchain
## Abstract
This is a naive implementation of a Blockchain. It is for learning purposes and it tries to simplify the complex technology stack and concepts of a real Blockchain. There are no optimisations or security practises implemented.
## Functionality
- [x] simple transactions (UTXO)
- [x] static difficulty
- [x] static mining rewards
- [x] basic wallet (secp256k1)
- [ ] transaction fee
- [ ] block size limit
- [ ] miner configurations (min transaction fee)
- [ ] persistent storage (sqlite, ~~file~~)
- [x] communication protocol (sockets, JSON-RPC, ~~REST~~)
- [x] P2P network (socket.io, ~~libp2p~~)
- [ ] transaction broadcasting
- [ ] consensus protocol (longest chain, ~~BFT~~)
- [ ] validations (transactions, blocks)
- [x] CLI tools (wallet, miner, node)
- [x] consensus algorithms (POW (SHA256), ~~POS~~, ~~DPOS~~)
- [ ] mining pool (Stratum, Getwork, Getblocktemplate)
- [ ] payment mechanisms (PPS, PPLNS)
- [ ] Merkle tree for transactions
- [ ] SPV
- [ ] complex transactions (script)
- [ ] dynamic difficulty
- [ ] dynamic mining rewards (halving)
- [ ] transactions anti-spam mechanism
- [ ] serialization
- [ ] smart contracts
- [ ] calculate hashrate
## References
* http://www.righto.com/2014/02/bitcoin-mining-hard-way-algorithms.html
* https://medium.com/@preethikasireddy/how-does-ethereum-work-anyway-22d1df506369
* https://hackernoon.com/learn-blockchains-by-building-one-117428612f46
* https://www.youtube.com/watch?v=zVqczFZr124
* https://github.com/bitcoinbook/bitcoinbook
* https://github.com/ethereumbook/ethereumbook
## Specifications
* https://www.blockchain.com/api/json_rpc_api
* https://ethereum.gitbooks.io/frontier-guide/devp2p.html
* https://github.com/ethereum/wiki/wiki/json-rpc
## Commands
### Run a node
`npm start -- --port 4000 --rpc --rpcport 3000`
### Run a solo miner
`npm run miner`
### Run the wallet utility
`npm run wallet`
## Installation
`npm install`