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Welcome
About TokenBridge
Features, Definitions and Modes
Components
Use Cases
Security Audits
Roadmap
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 (Gnosis Chain)
About the xDai Bridge
Using the xDai Bridge
xDai Bridge Contracts Management
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
Transfers with covered gas fees
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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Roadmap

AMB between ETH-POA and ETH-xDAI

Target date: Q4 2019
The bridges currently deployed between the Ethereum Mainnet, POA Network and xDai Chain only transfer fungible tokens. However, several projects have requested the ability to transfer other types of digital assets, for example non-fungible tokens.
First, the AMB will be set up between the Ethereum Mainnet and the xDai Chain. Next, it will be deployed between the Mainnet and POA Network. Once AMB bridges are available, the same set of validator nodes will be able to transfer data between bridged chains for dozens of different applications. No reconfiguration will be required to facilitate these transfers.

Upgrade xDAI bridge to support alternative receiver and relative withdrawal limits

Target date: Q4 2019
  • Alternative receiver: Any contract in one chain will have the ability to send tokens cross-chain to any external address or contract. This feature will benefit owners of multsig wallets - they will be able to exchange Dai to xDai and vice versa.
  • Relative withdrawal limits: The current daily withdrawal limit is absolute, creating a potential security issue if all funds are withdrawn. The new configuration will base withdrawal limits on the total bridge balance. For example, a 6% relative limit will restrict daily withdrawal operations to 6% of the overall bridge balance.

Staking token bridge on top of AMB

Target date: Q2 2020
The arbitrary message bridge generalizes bridge operations and creates the opportunity for the same set of validators nodes to relay any data from one chain to another without any reconfiguration. This will allow for a smooth transition when the xDai chain is upgraded to POSDAO; the staking token transfer will be handled by the existing AMB infrastructure. Token exchange will be possible as soon as the mediator contract responsible for handling new asset transfers is deployed.
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About the AMB
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Outline
AMB between ETH-POA and ETH-xDAI
Upgrade xDAI bridge to support alternative receiver and relative withdrawal limits
Staking token bridge on top of AMB