Nexus 2 — Trust & Privacy

Layer 1: Identity Protocol · 9 MCP Endpoints · Status: In Development

Nexus 2 is the trust layer of the sovereign economy. Prove you are an accredited investor without revealing your net worth. Prove a smart contract passed formal verification without revealing its source code. Selective disclosure, powered by zero-knowledge proofs.

What It Does

• DID Management: Create, resolve, and manage Decentralized Identifiers across multiple methods (did:key, did:web, did:ethr, did:pkh).
• Verifiable Credentials: Issue and verify W3C-standard Verifiable Credentials — portable, tamper-evident, cryptographically signed.
• ZK Proof Generation: Generate zero-knowledge proofs for selective attribute disclosure. The verifier learns the claim is true without learning anything else.
• Trust Path Resolution: Trace credential chains to establish trust between unfamiliar parties.

Key Capabilities

Selective Disclosure

Claim: "I am an accredited investor"
Proof: ZK proof that net_worth > threshold
Revealed: The boolean result (true/false)
Not revealed: Actual net worth, source of funds, bank name

Cross-Nexus Verification

Every operation across the stack references Nexus 2 for identity verification. The agent navigation protocol always ends with a Nexus 2 verification step — ensuring all results are cryptographically attested.

MCP Endpoints

Type	Endpoint	Description
Resource	nexus2.did_registry	DID document registry
Resource	nexus2.credential_schemas	Available credential types
Resource	nexus2.zk_circuits	ZK circuit catalog
Resource	nexus2.trust_graph	Web-of-trust relationships
Tool	nexus2.verify_identity	Verify a DID and resolve its document
Tool	nexus2.prove_attribute	Generate a ZK proof for an attribute
Tool	nexus2.resolve_did	Resolve a DID to its full document
Workflow	nexus2.credential_issuance	Full credential lifecycle
Workflow	nexus2.identity_verification	Complete identity verification flow

The Cypherpunk Trinity

Nexus 2 embodies the three constitutional constraints of the stack:

1. Privacy — ZK proofs ensure minimum disclosure
2. Sovereignty — Self-custody of keys, credentials, and delegations
3. Cryptographic proof — Every claim verifiable on-chain

These are not features. They are immutable architectural constraints.

Timeline: Q2-Q3 2026 (partial with Layer 1, full with Layer 2)