BSC-TON bridge allows to transfer in decentralized way TON Coins between TON Network and Binance Smart Chain.

Technically, the BSC-TON bridge is an ETH-TON bridge with minimal changes.

Starting point

The bridge smart contract is developed (func branch bsc, solidity 652e0e9) and documented. Test version (TON Testnet - BSC Testnet) launched.

Network config -72 and 72 (config of bridge) is not installed on the mainnet.

Roadmap

Initial oracle set and stakes

• Bridge smart contract is being deployed
  Source-code - https://github.com/ton-blockchain/bridge-func/blob/bsc/func/bridge_code.fc
  Address - https://ton.sh/address/Ef9NXAIQs12t2qIZ-sRZ26D977H65Ol6DQeXc5_gUNaUys5r

• Bridge collector smart contract is being deployed
  Source-code - https://github.com/ton-blockchain/bridge-func/blob/bsc/func/votes-collector.fc
  Address - https://ton.sh/address/EQAHI1vGuw7d4WG-CtfDrWqEPNtmUuKjKFEFeJmZaqqfWTvW

• The initial oracle set consists of 9 oracles and is the same with the initial oracle set of ETH-TON bridge

• Each oracle must put stake in the amount of 100 000 TON coins on a special bridge governance smart contract
  Source-code - https://github.com/ton-blockchain/bridge-func/blob/bsc/func/multisig-code.fc
  Address - https://ton.sh/address/0f8_gV8rpqtPl1vmYDrMzwxlGQDJ63SIKO8vDhNZHT5wwQWY

• n should be 9 and k should be 6 which means that any transfer will require confirmation from at least six oracles

• get_lock_timeout of bridge governance smart contract must lock oracle stakes for a time sufficient to vote for config 72

• The Ethereum part of the bridge is deployed with the same oracles set
  Source-code https://github.com/newton-blockchain/bridge-solidity
  Address - https://bscscan.com/address/0x76A797A59Ba2C17726896976B7B3747BfD1d220f

Validators vote for the bridge config

• Validators study the governing, bridge and collector smart contracts and make sure that the code, parameters and balance are correct

• Validators examine the 72 config proposal and make sure that its data is correct and contains the same list of oracles and smart-contracts addresses

• Validators vote for config 72 (as described in https://ton.org/docs/#/howto/config-params)

• Bridge starts its work