On-Chain Database

Verification That Can't Be Rewritten.

deepidv's on-chain database writes verification results to blockchain — creating an immutable, decentralized, and tamper-proof record of every identity check. Once verified, always verifiable. No single point of failure, no data tampering, no disputes about what was verified and when.

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195+

Countries

Global document verification

<30s

Verification

Real-time identity checks

AI Agents

Continuous fraud monitoring

SOC 2

Certified

Enterprise-grade security

Why Web3 and Trust-Critical Platforms Choose deepidv

Immutable Verification Records

N° 01

Blockchain Immutability

Verification results written to blockchain as tamper-proof records
Cryptographic hashes ensure records cannot be altered after creation
Decentralized storage eliminates single points of failure

N° 02

Selective Disclosure

Zero-knowledge proofs allow verification without revealing underlying data
Users control what information is shared and with whom
Privacy-preserving design meets GDPR requirements

N° 03

Interoperability

Compatible with major blockchain networks (Ethereum, Polygon, Solana)
W3C Verifiable Credentials standard compliance
Cross-chain verification lookup capabilities

N° 04

Decentralized Trust

No single entity controls verification records
Third parties can independently verify credential authenticity
Eliminates reliance on centralized verification providers

N° 05

Smart Contract Integration

Verification status queryable by smart contracts
Automated compliance gates for DeFi protocols
Programmable verification rules enforced on-chain

Use Cases

Real Solutions for Real Trust Challenges

From DeFi to supply chain, deepidv's on-chain database brings immutable verification to every trust-critical application.

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DeFi Protocol Compliance

Enable compliant DeFi with on-chain KYC. Smart contracts query verification status before allowing transactions, maintaining decentralization while meeting regulatory requirements.

NFT & Digital Asset Platforms

Verify creator and buyer identities with immutable on-chain records. Prevent fraud, enable royalty enforcement, and build trust in digital asset marketplaces.

DAO Governance

Ensure one-person-one-vote in DAO governance with verified identity tokens. Prevent Sybil attacks while maintaining voter privacy through zero-knowledge proofs.

Supply Chain Provenance

Create immutable verification records for supply chain participants. Verify business identities and credentials at every node in the supply chain with tamper-proof on-chain records.

Cross-Border Remittance

Enable compliant cross-border payments with on-chain KYC records that can be verified by both sender and receiver institutions without sharing raw customer data.

Digital Identity Wallets

Issue on-chain verifiable credentials that users store in their digital identity wallets. Users present credentials to any relying party without re-verification.

Built for Decentralized Trust

Centralized databases create single points of failure and trust. deepidv's on-chain database distributes verification records across a decentralized network that no single entity controls.

Immutable verification records on major blockchain networks
Zero-knowledge proofs for privacy-preserving verification
W3C Verifiable Credentials standard compliance
Smart contract integration for automated compliance
Cross-chain verification lookup
Decentralized architecture with no single point of failure

Trusted & Certified

SOC 2 Type II

Audited security controls for data protection

GDPR Compliant

Full compliance with EU data privacy regulations

ISO 27001

International standard for information security

DIACC Member

Digital ID & Authentication Council of Canada

One API. Full Coverage.

A single RESTful API covers identity verification, AML screening, fraud detection, and continuous monitoring. Go from first call to production in days — not months.

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verify-identity.sh

curl -X POST https://api.deepidv.com/v1/sessions \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "type": "identity-verification",
    "checks": [
      "document-verification",
      "face-liveness",
      "aml-screening"
    ],
    "redirect_url": "https://yourapp.com/done",
    "webhook_url": "https://yourapp.com/webhooks"
  }'

# Response:
# {
#   "session_id": "ses_8f2k...",
#   "session_url": "https://verify.deepidv.com/ses_8f2k..."
# }

Verification Sessions

Create hosted verification flows your users complete via link or embed. No frontend code required — just redirect and receive results via webhook.

AML & Screening

Screen against global sanctions lists, PEP databases, and adverse media in a single API call. Ongoing monitoring available for continuous compliance.

Real-Time Webhooks

Get instant notifications when verifications complete, risk scores change, or monitoring alerts fire. No polling required.

Admin Console

Full visibility into every verification — status, audit trails, risk signals, and compliance reporting. Manage API keys, top up tokens, and configure workflows.

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Ready to bring verification on-chain?

See how deepidv's on-chain database delivers immutable, decentralized verification records for trust-critical applications.

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Frequently asked questions

Common questions about deepidv's on-chain database.

deepidv currently supports Ethereum, Polygon, and Solana for on-chain verification records. We use a chain-agnostic architecture that allows new blockchain networks to be added based on customer demand. Most customers choose Polygon for its low transaction costs and fast finality.

deepidv uses zero-knowledge proofs to write verification results to blockchain without exposing personal data. The on-chain record contains a cryptographic proof that a specific verification occurred and passed — but the underlying identity documents, biometric data, and personal information are never written to the blockchain.

deepidv provides smart contract libraries for Solidity and Rust that allow on-chain applications to query verification status. A DeFi protocol can check if a wallet address has been KYC-verified before allowing a transaction, all within the smart contract execution — no off-chain calls required.

deepidv's on-chain implementation is designed for GDPR compatibility. No personal data is written to the blockchain — only cryptographic proofs and verification status. If a user exercises their right to erasure, the off-chain personal data is deleted, and the on-chain record can be updated to mark the verification as revoked without modifying the historical record.

On-chain verification costs include deepidv's verification fee plus blockchain transaction (gas) fees. We optimize costs by batching on-chain writes and using layer-2 networks like Polygon. For most use cases, the on-chain component adds less than $0.10 per verification on top of standard pricing.

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Verification That Can't Be Rewritten.