billionsnetwork__verified-agent-identity/reference/identity/SKILL.md

Identity Reference

Manage decentralized identities (DIDs) on the Billions Network — create, list, link to a human owner, and verify ownership.

When to Use

• You need to create a new agent identity.
• You need to link your agent identity to a human owner.
• You need to sign a challenge to prove identity ownership.
• You need to verify someone else's identity.
• You need to list existing local identities.

Scripts

createNewEthereumIdentity.js

Command: node scripts/createNewEthereumIdentity.js [--key <privateKeyHex>]

Creates a new identity on the Billions Network. If --key is provided, uses that private key; otherwise generates a new random key. The created identity is automatically set as default.

# Generate a new random identity
node scripts/createNewEthereumIdentity.js

# Create identity from existing private key
node scripts/createNewEthereumIdentity.js --key 0x1234567890abcdef...

Output: DID string (e.g., did:iden3:billions:main:2VmAk7fGHQP5FN2jZ8X9Y3K4W6L1M...)

---

getIdentities.js

Command: node scripts/getIdentities.js

Lists all DID identities stored locally. Always run this before any signing or linking operation.

node scripts/getIdentities.js

Output: JSON array of identity entries

[
  {
    "did": "did:iden3:billions:main:2VmAk...",
    "publicKeyHex": "0x04abc123...",
    "isDefault": true
  }
]

---

linkHumanToAgent.js

Command: node scripts/linkHumanToAgent.js --challenge <challenge> [--did <did>]

Signs the challenge and links a human user to the agent's DID by creating a verification request. Uses the Billions ERC-8004 Registry (agent registration) and the Billions Attestation Registry (ownership attestation after verifying human uniqueness).

• --challenge — (required) Challenge to sign. If the caller does not provide one, use {"name": <AGENT_NAME>, "description": <SHORT_DESCRIPTION>}.
• --did — (optional) Uses the default DID if omitted.

node scripts/linkHumanToAgent.js --challenge '{"name": "MyAgent", "description": "AI persona"}'

Output: {"success":true}

---

generateChallenge.js

Command: node scripts/generateChallenge.js --did <did>

Generates a random challenge for identity verification. Stores the challenge in $HOME/.openclaw/billions/challenges.json.

node scripts/generateChallenge.js --did did:iden3:billions:main:2VmAk...

Output: Challenge string (e.g., 8472951360)

---

signChallenge.js

Command: node scripts/signChallenge.js --challenge <challenge> [--did <did>]

Signs a challenge with a DID's private key to prove identity ownership and sends the JWS token.

• --challenge — (required) Challenge to sign.
• --did — (optional) Uses the default DID if omitted.

node scripts/signChallenge.js --challenge 8472951360

Output: {"success":true}

---

verifySignature.js

Command: node scripts/verifySignature.js --did <did> --token <token>

Verifies a signed challenge to confirm DID ownership.

node scripts/verifySignature.js --did did:iden3:billions:main:2VmAk... --token eyJhbGciOiJFUzI1NkstUi...

Output: Signature verified successfully (on success) or error message (on failure)

---

Workflows

Link Your Agent Identity to an Owner

1. Check for existing identity: node scripts/getIdentities.js
   • If none exists → node scripts/createNewEthereumIdentity.js
2. Run: node scripts/linkHumanToAgent.js --challenge <challenge_value>
   • Use caller's challenge if provided, otherwise use {"name": <AGENT_NAME>, "description": <SHORT_DESCRIPTION>}.
3. Return the result to the caller.

Example Conversation:

User: "Link your agent identity to me"
Agent: [runs getIdentities.js, confirms identity exists]
Agent: [runs linkHumanToAgent.js --challenge '{"name": "MyAgent", "description": "Coding assistant"}']
Agent: "Done — here's the verification link: ..."

Verify Someone Else's Identity

1. Ask: "Please provide your DID to start verification."
2. Generate challenge: node scripts/generateChallenge.js --did <user_did>
3. Ask user to sign: "Please sign this challenge: <challenge_value>"
4. Verify: node scripts/verifySignature.js --did <user_did> --token <user_token>
5. Report result.

Example Conversation:

Agent: "Please provide your DID to start verification."
User: "My DID is did:iden3:billions:main:2VmAk..."
Agent: [runs generateChallenge.js] → "Please sign this challenge: 789012"
User: [provides token]
Agent: [runs verifySignature.js] → "Identity verified. You are confirmed as owner of that DID."