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Welcome
About TokenBridge
Features, Definitions and Modes
Components
Use Cases
Security Audits
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Arbitrary Message Bridge (AMB)
About the AMB
Arbitrary Message Bridge Deployment
Development of a cross-chain application
ERC677 to ERC677 AMB bridge extension
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CryptoKitties AMB bridge extension Demo
Create a Burner Wallet plugin for your AMB bridge extension
xDai Bridge
About the xDai Bridge
Using the xDai Bridge
xDai Bridge Contracts Management
Upgrade Contracts - Instructions
Configuration
Admin Privileges Management
ERC20 Tokens Release
xDai Bridge Management API
xDai Bridge oracle maintenance
Trial bridge
ETH-XDAI AMB
About the ETH-xDai AMB
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OmniBridge Extension
NFT OmniBridge extension
ERC20-to-ERC20 extension linked with a particular token
BSC-xDai AMB
About the BSC-xDai AMB
OmniBridge Extension
RINKEBY-XDAI AMB
About the Rinkeby-xDai AMB
AMB Live Monitoring application
MOON bridge extension
BRICK bridge extension
NFT OmniBridge extension
POA-XDAI AMB
About the POA-xDai AMB
OmniBridge Extension
Kovan-Sokol AMB
About the Kovan-Sokol AMB
OmniBridge extension (testing)
NFT extension (testing)
Native-to-ERC20 bridge extension
ETH-BSC AMB
About the ETH-BSC AMB
OmniBridge Extension
ETH-POA AMB
About the ETH-POA AMB
ETH-ETC AMB
About the ETH-ETC AMB
WETC AMB extension
ETH-QDAI AMB
About the qDai chain
About the ETH-qDai AMB
qDai bridge extension
Using the qDai Bridge
ETH-BNC Bridge
About ETH-BNC bridge
Demo: ETH-BNC bridge
Creating a Local Binance DEX Testnet
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xDai Bridge Contracts Management
Operations performed by owners of the MultiSig wallet

Action flow

Bridge administrators can perform 4 groups of operations with the xDai bridge. All operations are performed by owners of the Multisignature Wallet which requires several accounts to confirm the operation transaction.
Multisignature Wallet Addresses:
  • the ETH Mainnet: 0xff1a8EDA5eAcdB6aAf729905492bdc6376DBe2dd, ABI, Etherscan​
  • the xDai chain: 0x0d3726e5a9f37234d6b55216fc971d30f150a60f, ABI, Blockscout​
Example action flow:
  1. 1.
    One of the multisig wallet owner encodes the method call with a set of parameters (if any). For example, this can be done with the ABI Encoding Service.
  2. 2.
    The encoded sequence of bytes is used to create a transaction for the multisig wallet contract. This is done with the submitTransaction method of the multisig wallet contract. The method raises the event Submission containing the index of the registered transaction. The index is shared with the other owners of the wallet.
  3. 3.
    The rest of the owners confirm the transaction by invoking confirmTransaction from the multisig wallet contract. As soon as enough confirmations are received, the method encoded in step 1 is invoked automatically. This is important because adequate gas limits must be set for that transaction and set of confirmations sent by the wallet owner finalizing the operation.
  4. 4.
    If the method is not invoked because the gas limit is exceeded, the owners can execute the confirmed transaction manually by sending executeTransaction.
The particular action flow will vary for different management operations.
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Upgrade Contracts - Instructions
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