> ## Documentation Index
> Fetch the complete documentation index at: https://docs.digitalasset.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Blocklist

> Enforce real-time compliance, AML, and sanction policies directly within your digital asset infrastructure.

As digital assets integrate deeper into global financial systems, relying solely on manual operational processes is no longer sufficient. Modern regulatory frameworks expect compliance controls to be technically enforceable and protocol-native rather than operational afterthoughts.

The **Registry App** provides configurable, protocol-native blocklists that empower issuers to immediately restrict specific parties from interacting with an asset. Compliance policies are consistently enforced across every lifecycle workflow—guaranteeing that bad actors are stopped before a transaction can even clear.

<Info>
  **The On-Chain Difference:** Unlike traditional tokenization platforms that rely on retrospective, off-chain monitoring and manual intervention, the DA Registry embeds compliance directly into the asset model. Every transaction is validated *before* execution.
</Info>

## Key Capabilities

By building compliance directly into the asset lifecycle, the Registry App minimizes operational friction while meeting strict institutional standards.

<CardGroup cols={2}>
  <Card title="Protocol-Native Enforcement" icon="code-merge">
    Compliance policies are executed directly by the smart contract logic, eliminating the risk of operational bypass or human error.
  </Card>

  <Card title="Deterministic Authorization" icon="shield-check">
    Transactions that violate configured policies fail automatically prior to execution, ensuring bulletproof rule enforcement.
  </Card>

  <Card title="Audit-Ready Evidence" icon="file-certificate">
    Every compliance decision, blocklist modification, and asset operation is recorded permanently on-ledger for an unalterable audit trail.
  </Card>

  <Card title="Privacy-Preserving Controls" icon="eye-slash">
    Enforcement seamlessly respects Canton's privacy model, ensuring selective disclosure capabilities protect sensitive data.
  </Card>
</CardGroup>

## Lifecycle Coverage

Blocklists are comprehensively integrated across the asset lifecycle. The Registry App ensures that compliance checks are not limited to standard transfers, but span all critical token actions:

| Operation     | Enforcement Behavior                                                                                        |
| :------------ | :---------------------------------------------------------------------------------------------------------- |
| **Minting**   | Prevents blocklisted or unsanctioned addresses from initiating or receiving newly issued assets.            |
| **Transfers** | Intercepts peer-to-peer, exchange, or smart contract movements involving restricted entities.               |
| **Burning**   | Restricts asset redemption or lifecycle termination events if the holding party is under a regulatory hold. |

<Warning>
  **Risk Mitigation:** Shifting from reactive monitoring to proactive, on-ledger validation completely eliminates the "settlement window risk" where compliance violations traditionally occur.
</Warning>