VerifyAgent

VerifyAgent.eth is the public verifier for receipts produced by ENS-named agents.

VerifyAgent is the reference verifier: paste or submit a receipt, resolve signer identity and verification metadata from ENS, recompute the canonical hash, verify Ed25519 signatures, and return a clear VERIFIED or INVALID result.

Links

• Live verifier UI: https://www.commandlayer.org/verify.html
• API verifier endpoint: https://www.commandlayer.org/api/verify
• Callable VerifyAgent endpoint: https://www.commandlayer.org/api/agents/verifyagent
• SDK repo: https://github.com/commandlayer/agent-sdk

Install the SDK

npm install @commandlayer/agent-sdk

Canonical flow

• @commandlayer/agent-sdk creates a signed receipt.
• VerifyAgent verifies the signed receipt.
• A tampered signed receipt returns INVALID.

Verification flow

1. Agent executes an action.
2. @commandlayer/agent-sdk emits a signed receipt.
3. VerifyAgent resolves signer identity and verification metadata from ENS (cl.sig.pub, cl.sig.kid, cl.sig.canonical, cl.receipt.signer).
4. VerifyAgent canonicalizes + hashes payload, then verifies Ed25519 signature.
5. Result is VERIFIED or INVALID with explicit checks.

Scope

VerifyAgent is a verification surface and reference verifier implementation. It does not create receipts.

Run locally

npm install
npm run dev

Open: http://localhost:4173/verify.html

Sample and tamper checks

• Load Sample verifies a real signed receipt.
• Load Tampered changes output while keeping original hash/signature to demonstrate tamper detection.
• examples/sample-receipt.json verifies as VERIFIED.
• examples/tampered-receipt.json verifies as INVALID.

Canonical values

• signer: runtime.commandlayer.eth
• key id: vC4WbcNoq2znSCiQ
• canonicalization: json.sorted_keys.v1
• signature algorithm: ed25519

ENS signer records

Known signer records for runtime.commandlayer.eth:

• cl.receipt.signer = runtime.commandlayer.eth
• cl.sig.kid = vC4WbcNoq2znSCiQ
• cl.sig.pub = ed25519:hhyCuPNoMk4JtEvGEV8F6nMZ4uDO1EcyizPufmnJTOY=
• cl.sig.canonical = json.sorted_keys.v1

VerifyAgent resolves signer keys from ENS TXT records. Fallback is a local demo fallback for runtime.commandlayer.eth only, mirroring the ENS record structure. The verification flow is designed to operate against live ENS records.

VerifyAgent.eth is designed to be discoverable as a verifier for ENS-named agents, enabling independent verification across agent ecosystems.