Cryptographic proofs for multi-agent coordination

[jagmarques]

Agent-MCP coordinates multiple specialized agents working in parallel via MCP. When agents collaborate on different aspects of a project, there's no built-in way to prove which agent did what, or that coordination happened correctly.

asqav adds cryptographic audit trails to multi-agent interactions. Each agent action, message, and coordination event gets a signed record - useful for debugging, accountability, and compliance when running parallel agent workflows.

Especially relevant for enterprise users who need to demonstrate their multi-agent system's behavior to regulators under EU AI Act requirements.

[kevinkaylie]

AgentNexus adds cryptographically verifiable agent identity

You want: proof of which agent did what, and that coordination happened correctly.

AgentNexus provides exactly this:

Every message between agents carries:

• Ed25519 signature (proves who sent it)
• X25519 ECDH key exchange (establishes shared secret)
• AES-256-GCM encryption (confidentiality + integrity)

Agent A                    Agent B
  |  DID_A (signed)              |
  |---------------------------->|
  |  message + Ed25519 signature|
  |  (proves A sent it)         |
  |  + AES-256-GCM encrypted    |

What you get:

• Non-repudiation: Agent can't deny sending a message (Ed25519 signature)
• Tamper-proof: AES-256-GCM auth_tag catches any modification
• Accountability: Every action logged with cryptographic proof of who did it

Your asqav approach + AgentNexus identity layer = complete audit trail solution.

Integration point:
Agents using AgentNexus DID get cryptographically verifiable identities. Each action can be traced back to the DID that performed it - no fake identities possible.

Reference: agent_net/auth/
AgentNexus on GitHub: kevinkaylie/AgentNexus