Cross-chain bridges are essentially protocols that send data between blockchains. Transporting cryptographic assets between chains is the most typical bridge use case. In that situation, the bridge deploys a "wrapped" IOU asset on the bridged chain while holding a user's assets in a smart contract.
According to a blog post by Synapse, Synapse Chain will eliminate asset wrapping by developing a natively compatible blockchain with various crypto assets. Although based on Ethereum, Synapse's "single execution environment" is theoretically compatible with any blockchain. Assuming all transactions to be valid pending fraud allegations from so-called guards, layer-2 uses optimistic proofs.
Optimistic verification, in the opinion of Synapse, will assist the chain and prevent adding to the approximately $2 billion in assets already lost to cross-chain protocols this year. Many compromised bridges had assets in multi-signature wallets that yielded the "multi" prefix. An optimistic system requires all validators to approve transactions because every guard implicitly verifies data when it doesn't report fraud. Using a technique known as "slashing,"
Synapse motivates security personnel to perform their duties by taking their SYN governance tokens when incorrect transactions are accepted. Following the Synapse Chain release, SYN increased by almost 40%, trading at around $1.70 on Thursday afternoon. The optimistic rollup will initially operate the optimistic rollup sequencer implemented by Synapse internally, but the protocol wants to decentralize like other layer-2s.