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The private chain solution based on ngin network codebase


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What is ngchain?

The ngchain is a radically updating brand-new blockchain network, which is not a fork of ethereum or any other chain.

The ngchain's goal is to build a blockchain engine which acts more auditable, scalable, security-oriented and supports more network tasks with vm.

The ngchain uses modern models - Vault(Block), Account, Multi-type Tx, and the traditional Block model to build the blockchain ecosystem. And ngchain strictly follow the idea of blockchain, locking items with hash to keep engine work safely. Not only blockchain, but Vault(Block) will also link up to be a chain for account security and powerful functions like fast ignition, free account state and so on. So It's safe and robust like bitcoin and ethereum but more scalable and powerful on the node's operational capacity and p2p network's speed and performance.


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  • Fast ignition
  • Less, or no storage cost(mem only)
  • With humanizing account model, users can send tx with memorable short number
  • High security with Sheet and Vault(Block) model
  • Powerful and scalable types of tx
  • Support Multi-Tx, sending coins to different places in the same time
  • Powerful WASM VM support based on account state(contract).
  • Libp2p(ipfs) powered p2p networking
  • Available anonymous address for saving balance
  • Using the schnorr signature, allowing Multi-Sig when sending and receiving
  • ...


go version >= 1.17

NOTICE: go build on Windows you should use -buildmode=exe flag (go version >= 1.15)



# go will automatically sync the dependencies
# GCC is required because of high performance db & vm
go build ./cmd/ngbiz


# dircetly run the binary
export GOLOG_FILE=ngbiz.log # disable stderr output and write to the ngbiz.log file
export GOLOG_LOG_LEVEL=debug # print more logs

# ngwallet is a rpc client in dart for ngin's daemon, see
./ngwallet register 10086
./ngwallet transact 10010 1.5 # send 1.5 NG to account 10010
./ngwallet transact QfUnsE4CNgnpVS4oC4WEYH8u7WWAs8AwMrFBknWWqGSYwBXU 1.5 # send 1.5 NG to address QfUn...

If you wanna start mining(proof of work), try --mining <Thread Num> flag

./ngbiz --mining 0 # zero means using all available cores

You can view more flags and options with --help flag

./ngbiz --help

Or you can choose to run in a docker

git clone && cd ngbiz
sudo docker build . -t ngbiz

# Run as a bootstrap node
sudo docker run -p 52520:52520 -p 52521:52521 -v .:/workspace -v ~/.ngkeys:~/.ngkeys ngbiz --bootstrap true

# Run as a mining node, 0 means using all cpu cores, --in-mem will disable writing into disk and make the miner lighter
sudo docker run -p 52520:52520 -p 52521:52521 -v .:/workspace -v ~/.ngkeys:~/.ngkeys ngbiz --mining 0 --in-mem

Run a ngchain forknet

It's so easy to run an independent PoW chain on ngbiz codebase.

  1. Modify the GenesisAddressBase58 in ./ngtypes/defaults.go and protocolVersion in ./ngp2p/defaults/defaults.go

  2. Generate a new signature for genesis generate tx, and genesis block's nonce (with ngbiz gentools toolset)

  3. Run more than 2 bootstrap node with --bootstrap flag (without mining)

  4. Write the bootstrap node to bootstrapNodes in ./ngp2p/bootstrap_nodes.go

  5. Run a mining node with --mining 0 flag

  6. Enjoy your fascinating PoW chain


The private chain solution based on ngin network codebase







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