The team behind BitcoinOS (BOS) has just performed what they’re calling a “bridgeless cross-chain transfer” of 1 BTC to Cardano… and back again.
According to BOS devs, the whole round-trip was done without relying on any of the traditional bridging infrastructure, and it arrived in the form of a programmable xBTC token.
Here’s how they did it:
1 BTC was locked directly on the Bitcoin blockchain and wrapped into a new token called xBTC—a programmable asset with cryptographic proof linking it to the original coin.
xBTC was then sent to the Cardano network via Sundial Protocol, a hybrid Bitcoin/Cardano L2.
From there, it passed through Handle, Cardano’s on-chain ID platform, before making its way back to Bitcoin, where it was burned and unwrapped—returning it to BTC.
The transfer was also touted as being custodian-free and secured using zero-knowledge proofs (ZKPs), which is a step up from older wrapped BTC models launched back in 2019.
This story continues to develop and will be updated accordingly.
The post BitcoinOS pulls off bridgeless BTC transfer to Cardano—and back again
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