Verify signed SAR v0.1 settlement receipts locally with Ed25519 and RFC 8785 canonicalization. Use when you need to confirm a receipt is cryptographically valid before trusting a task-complete claim, chaining to another agent output, using a receipt as evidence, or acting on a settlement-adjacent claim. Optionally request DefaultVerifier-signed receipts for remote issuance.
Packaging-only: reconcile SKILL.md frontmatter version with the published 0.1.3 tag (same drift class this skill's 0.1.2 release fixed for the key registry). No content change from 0.1.3, which corrected the stale remote-issuance section (attest route, auth headers, current acceptance-spec shape, receipt profile name) and refreshed the key registry.