Secure and trustworthy bridge for transferring assets across networks with different data architecture

A system for secure transfer of assets between blockchain networks, the system comprising:

• a secure execution server comprising (i) one or more processors and (ii) memory storing a bridge program, wherein the one or more processors and the memory provide a secure execution environment that is configured to interact with a pool of warden servers to facilitate secure transfer of assets between a first blockchain network and a second blockchain network, wherein the secure execution environment of the secure execution server performs operations comprising:
• executing the bridge program to perform lock operations that lock first assets on the first blockchain network and mint second assets representing the first assets on the second blockchain network, the lock operations comprising:
• receiving, from multiple different warden servers of the pool of warden servers, respective notifications that the first assets have been transferred from a user wallet of the first blockchain network to a bridge wallet of the first blockchain network;
• and
• in response to receiving at least a minimum number of respective notifications from the multiple different warden servers, transmitting, to each warden server in the pool of warden servers, minting instructions to mint the second assets representing the first assets in a designated user wallet of the second blockchain network;
• in response to the second assets being returned or destroyed, executing the bridge program to perform unlock operations that unlock the first assets by transferring the first assets in the bridge wallet of the first blockchain network to the user wallet of the first blockchain network;
• and
• upon restart after a failure, (i) receiving encrypted transactions from at least a threshold number of the warden servers confirming that asset operations were performed on the first blockchain network and the second blockchain network, and (ii) in response to receiving the encrypted transactions from at least the threshold number of the warden servers, validating that the asset operations were successfully performed on the first blockchain network and the second blockchain network, wherein the asset operations comprise the first assets being transferred from the user wallet of the first blockchain network to the bridge wallet of the first blockchain network, and the second assets being returned or destroyed on the second blockchain network.