The On-Chain Layer
The On-Chain Layer is the base of CRYMBO’s architecture — a foundational component that connects directly with Layer 1 and Layer 2 blockchains to enforce compliance at the protocol level.
It ensures native interoperability, real-time transaction visibility, and supports cross-network compliance logic without compromising decentralization.
Purpose
The On-Chain Layer enables CRYMBO to:
- Monitor blockchain activity across supported networks
- Anchor identity and compliance metadata on-chain
- Execute transaction-level compliance logic (e.g. Travel Rule enforcement)
- Enable real-time PII requests and responses using secure oracles
- Maintain composability with smart contracts and DeFi protocols
Supported Blockchains
CRYMBO currently integrates with:
- Ethereum
- Polygon
- Solana
- Avalanche
- Base
- Bitcoin & UTXO chains (via indexers)
- More networks added quarterly
Each integration enables the CRYMBO Oracle to index, validate, and optionally halt non-compliant transactions via validator nodes or off-chain triggers.
How It Works
-
Wallet Activity Detection
CRYMBO’s node monitor listens for activity involving registered VASPs or whitelisted operational wallets. -
Smart Contract Invocation
Compliance-related smart contracts (e.g.requestPIIForTransaction) are triggered to enforce rules per jurisdiction. -
Oracle Engagement
The Oracle fetches relevant off-chain data and returns a signed response — whether the transaction may proceed. -
Transaction Logging
All transactions are cryptographically signed and optionally submitted to the CRYMBO Explorer for regulatory visibility.
Example Use Cases
| Use Case | Description |
|---|---|
| Travel Rule | When a transaction is initiated between two VASPs, CRYMBO ensures PII is exchanged securely and logged. |
| KYC Enforcement | Wallets above a trading threshold must trigger identity verification or risk freezing via policy logic. |
| Token Screening | CRYMBO validates that tokens involved are not blacklisted (e.g. sanctioned assets). |
Developer Access
To integrate with the on-chain layer:
- Use CRYMBO Connect APIs to register VASP wallets
- Deploy your transaction contracts with CRYMBO’s oracle hooks
- Use
@crymbo/oracle-sdkto validate compliance status before execution
Smart contract templates and SDKs will be provided in /docs/integrate/smart-contracts.
Why It Matters
Traditional compliance tools rely on centralized databases, slow APIs, and batch audits.
CRYMBO’s On-Chain Layer flips this model by embedding real-time, decentralized, and verifiable compliance logic directly where transactions happen.
This makes the CRYMBO architecture composable, transparent, and future-proof.
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