The final post in the Chainlink Labs Research Team's series on interactive zero-knowledge (ZK) proofs delves into an efficient single-point VOLE (SPVOLE) protocol. This protocol allows a prover and verifier to generate VOLE correlations using Oblivious Transfer (OT) and the Goldreich Goldwasser Micali (GGM) construction, which reduces costs from linear to logarithmic in terms of the number of correlations. In this setup, the prover's vector has a Hamming weight of one, differing from the verifier's vector at only one entry by a known value, Delta. The security of the protocol is based on the properties of OT and GGM, ensuring that the prover learns only the intended information without revealing unnecessary details to the verifier. The post also discusses extending the protocol's security to guard against malicious adversaries through consistency checks, thus enhancing its reliability. This series emphasizes the advantages of efficient VOLE-based ZK implementations, which lower the cost of zero-knowledge proofs and facilitate proving complex circuits even on standard hardware, highlighting their potential to broaden the practical application of ZK technologies.