Exploring Zero-Knowledge Proofs on Bitcoin
A new article by the Fairgate team announces that Union Bridge has gone live on Rootstock Testnet, marking a new stage in the development of BitVMX-powered Bitcoin bridging.
spark.money/research
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Zero-Knowledge Proofs on Bitcoin: From Client-Side Validation to ZK Rollups
The practical impact: RGB can now express confidential asset transfers where amounts and asset types are hidden using zero-knowledge proofs, verified entirely client-side without any on-chain computation. This model avoids the verification bottleneck that plagues other Bitcoin ZK approaches because Bitcoin's consensus layer never needs to evaluate a proof.