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Goal. Bootstrap the agent's identity: set up the wallet and obtain a free Agent Credential from ZCert. Issuance is gated by an x401 exchange (the agent proves control of its wallet/DID); no x402 payment is involved in the MVP.
Wallet setup. The agent provisions an Agentic Zetrix Wallet: Wallet BE creates the holder keypair inside the HSM, and the wallet registers the holder ZID on-chain (DID document carrying the Ed25519 and BBS+ public keys).
Apply via x401. The wallet applies to ZCert for the Agent Credential. ZCert issues an x401 Proof-Required challenge to confirm the applicant controls the wallet/DID; the wallet answers it (holder-binding signed in the HSM) over the OID4VP verifier. No x402 payment, MVP is free.
Verify & issue. ZCert verifies the proof and issues the Agent Credential, dual-signing it with the issuer's Ed25519 and BBS+ keys.
Store. The wallet returns the credential to the agent; it is retained for reuse (client/wallet-held).
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