ARK-486 — Verification Decision · Cost at Scale

ARK-486 — ExecutionProof P02 Latency/Throughput/Scale series by Remnant Fieldworks Inc. Measures marginal compute cost per verification decision. Supersedes an earlier FAIL ($0.20/M) that resulted from a cost-model category error (charging one serverless request per in-process decision). Corrected preregistration reports two scenarios and takes the verdict on the realistic running-service model. Verdict: PASS (Scenario B basis). Realistic running-service cost $7.47e-06/M (Python), $1.18e-06/M (JavaScript), both far below the $0.01/M threshold. Scenario A naive-serverless bound ($0.20/M) disclosed for transparency. Covenant: outcomes preserved as measured; claims bounded to the tested in-memory reference under single-threaded load. Component performance measurements — not legal, patent, security, or production-readiness proofs. Soli Deo Gloria.