Space and Time Virtual Vaults adopt Chainlink’s privacy standard, letting lenders cryptographically verify collateral across private venues without exposing borrower identities or raw positions

Proof of SQL verifies covenant math over committed rows, while zkTLS only attests that those rows came from the named venue API, per SXT’s [three-layer architecture](https://docs.spaceandtime.io/docs/virtual-vaults). That enables sub-minute margin calls, but venue insolvency and hidden liens remain outside the proof; Chainlink’s [November 4, 2025 whitepaper](https://research.chain.link/confidential-compute.pdf) also calls standalone TEEs “too brittle to trust.”

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