The project is part of the QuantaDEX whitepaper.
The crosschain facilities the bridging of ETH/BTC/BCH/LTC to/from quanta blockchain (PoS fork of Bitshares). It is a distributed network of nodes, each indexing the host blockchain (Quanta), and the counter blockchains. When each of the nodes observes the transaction matching addresses to Quanta, or outgoing, it will record the transaction and broadcast to the network. Via a pBFT consensus protocol (CoSI), the network decides whether to issue or redeem the asset.
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├── blockchain # BTC/ETH/BCH/LTC Nodes directory
├── cli # executables for each of the network
├── common # common data structure, utilities, math, logging, metrics, messages
│ ├── consensus # consensus protocol (CoSi)
├── node # REST API node, trust node
├── registrar # Registrar responsible for registering/bootstrapping the node
├── trust
│ ├── coin # coin specific implementation for indexing data
│ ├── control # control code (coin2quanta, quanta2coin) to index block by block, broadcasting, and handling events
│ ├── db # database layer (postgres)
│ ├── key_manager # all key management related functions for each of the blockchain
│ ├── peer_contact # peer client for http communications with the network
│ ├── quanta # quanta blockchain (graphene PoS), and Stellar implementation
│ ├── registrar_client # registrar client for handling bootstrapping nodes
└── README.md
cd cli/ethereum && go build
./ethereum -config ../../node/ropsten/node1.yml # run for each node
cd node && go build
./node -config ropsten/node1.yml # run for each node
docker run --name bitcoind -v "$PWD/bitcoin-data:/data" nicolasdorier/docker-bitcoin:0.17.0 bitcoind -testnet -deprecatedrpc=signrawtransaction -txindex -deprecatedrpc=accounts
docker-compose stop crosschain1
## Pull latest
$(aws ecr get-login --no-include-email --region us-east-1)
docker pull 691216021071.dkr.ecr.us-east-1.amazonaws.com/quanta-bridge:latest
## Restart all dockers
docker-compose up --force-recreate --build -d crosschain_eth
docker-compose up --force-recreate --build -d crosschain_btc
docker-compose up --force-recreate --build -d crosschain1
docker-compose logs -f crosschain1 docker-compose logs -f crosschain_eth docker-compose logs -f crosschain_btc
ETH Forwarding Contract Deployed: https://ropsten.etherscan.io/tx/0x2255866778b5fc0e1d416b93d71d9a42c2fb66b9493cf20a40085f3aacaf8dc2
Contract: 0x21b2d8f88f5d60f28739ebeefc09220687ff00f1 Forwards: 0xBD770336fF47A3B61D4f54cc0Fb541Ea7baAE92d QUANTA Addr: QDIX3EOMEWN7OLZ3BEIN5DE7MCVSAP6547FFM3FFITQSTFXWUK4XA2NB (test2)
Test deposits:
0.1234 ETH to 0x21b2d8f88f5d60f28739ebeefc09220687ff00f1 TX: https://ropsten.etherscan.io/tx/0x8784265b4f2aa6c6460cc8bf3be46fb4d269a4d00c099bd205a4ae1ad1b96138
Test Withdrawal
lumen pay 0.10 TETH --from test2 --to issuer --memohash MHhiYTc1NzNDMGU4MDVlZjcxQUNCN2YxYzRhNTVFN2IwYWY0MTZFOTZB
Sends back to : 0xba7573C0e805ef71ACB7f1c4a55E7b0af416E96A
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Start the truffle console
$ cd blockchain/ethereum $ npm install truffle-hdwallet-provider $ npm install dotenv $ export MNENOMIC='empower furnace...' $ export INFURA_API_KEY='0e17d......' $ truffle console --network ropsten
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get the contract by address
truffle(ropsten)> const contract = QuantaCrossChain.at("0xbd770336ff47a3b61d4f54cc0fb541ea7baae92d") truffle(ropsten)> const util = require('ethereumjs-util')
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convert a private ethereum key to the public ethereum address
truffle(ropsten)> util.bufferToHex(util.publicToAddress(util.privateToPublic("0xc87509a1c067bbde78beb793e6fa76530b6382a4c0241e5e4a9ec0a0f44dc0d3"))) '0x627306090abab3a6e1400e9345bc60c78a8bef57'
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check to see if the public ethereum address is a signer for the contract
truffle(ropsten)> contract.isSigner("0x0xba7573c0e805ef71acb7f1c4a55e7b0af416e96a") true
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get the current ethereum block number
web3.eth.getBlockNumber((err, res) => {console.log(res)}) 4345932