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Programmable Identities on Manta Atlantic

Manta Atlantic combines zkAddresses, zkSBTs, and selective disclosure keys to let builders compose identity systems that bridge on-chain compliance with user-centric privacy.

Core Building Blocks#

  • zkAddress pairs – Every participant controls a public Substrate account plus a shielded address for confidential asset and credential management.
  • Prove Keys – Holders distribute verification keys to specific relying parties, enabling selective KYC disclosure without exposing global viewing access.
  • Programmable schemas – Issuers encode logic for membership, accreditation, jurisdiction, or AML flags, then publish updates via runtime governance.

Identity Vault Pattern#

  1. Bootstrap – Derive zkAddresses for each user and link them to public accounts through encrypted off-chain registries.
  2. Credential orchestration – Automate zkSBT issuance on approval events (KYC pass, accreditation, residency confirmation).
  3. Session management – Rotate Prove Keys per relying party and attach policy metadata (expiry, scope, revocation callbacks).
  4. Audit hooks – Stream anonymized issuance metrics to monitoring stacks for compliance reporting.

Cross-Chain Portability#

  • Atlantic credentials travel to other Polkadot parachains through XCMP, unlocking composability with DeFi venues such as Bifrost’s vMANTA staking derivatives.
  • Identity payloads can also bridge to EVM ecosystems (e.g., Moonbeam, Ethereum) using Manta’s interoperability hubs, preserving privacy across domains.

Policy-Driven Verification#

RequirementImplementation Strategy
Geographic accessEncode jurisdiction attributes inside credential schema and check using identity_verifyCredential, which wraps the zk verification flow described in the NPO compliance docs.
Transaction capsTrack credential usage counts off-chain and rotate Prove Keys when session budgets are exhausted.
AML monitoringSubscribe to revocation events and apply business rules before processing settlement.

Governance & Roadmap#

  • Manta Atlantic is scheduled for deprecation in July 2026; plan migrations to successor deployments while leveraging Atlantic for near-term compliance projects.
  • Participation in staking/governance keeps credential issuers aligned with network updates that may alter identity pallet semantics.

Proceed to Compliance Infrastructure for regulatory workflows.