| 6. Agent to Agent (A2A) Communications Protocol | |
| 4. DID Document Data Model | |
| 3. Verifiable DID Layer: (DID, Keys) => Verifiable NYM Transaction (or equiv) | |
| 5. Agents and Service Endpoints | |
| 2. DID Private/Public Key Pairs and Wallets | |
| 1. DID Identifier Data Model: DID Syntax | |
