Your CrewAI crew kicks off a task. Agents delegate to each other, call tools, return results. But can you prove what each agent actually did? CrewAI's built-in logs capture what happened. Cryptographic receipts prove it. The difference matters when an auditor, a customer, or a regulator asks "show me exactly what the agent did and prove it wasn't altered after the fact." This tutorial adds Ed25519-signed, hash-chained audit trails to a CrewAI crew in under 5 minutes. Signet itself needs no external service, no signing API, no infrastructure — receipts verify offline with a public key.…