Get QR Code

Generate a QR code image for an attestation. The QR code encodes the full verification URL that anyone can scan to verify the attestation independently.

Use cases

Print on certificates, badges, and documents
Embed in emails or digital proof pages
Display on screens for instant mobile verification

Parameters

string

required

The UUID of the attestation

integer

default:"256"

Image size in pixels (128 to 1024). The QR code is always square.

Response

Returns a PNG image with Content-Type: image/png. The response includes aggressive cache headers (Cache-Control: public, max-age=31536000, immutable) since QR codes for a given attestation never change.

Encoded URL format

The QR code encodes:

https://verify.truthlocks.com/proof/{attestation_id}

Anyone who scans this QR code will be taken directly to the verification page for this attestation.

curl -H "Authorization: Bearer $API_KEY" \
  "https://api.truthlocks.com/v1/attestations/550e8400-e29b-41d4-a716-446655440000/qr?size=512" \
  --output attestation-qr.png

const qrImage = await client.attestations.getQRCode(attestationId, { size: 512 });
fs.writeFileSync('attestation-qr.png', Buffer.from(qrImage));

Attestations

Receipts

Risk Evaluation

Risk Signals

Account Takeover

Velocity Scoring

Verification

Verification Packs

Issuers

API Keys

Policies

Issuer Applications

Identity & Access

Webhooks

Audit & Logs

Consumer (B2C)

Billing

Machine Agents

Agent Sessions & Tools

Trust & Witness

Truth Claims & Documents

Compliance & Anomalies

Datasets & Models

Orchestrations & Workflows

Guardrails & Delegation

MAIP Policies

Observability

Assets

Governance

Announcements

Blog Management

Leads

System

Use cases

Parameters

Response

Encoded URL format

​Use cases

​Parameters

​Response

​Encoded URL format

Use cases

Parameters

Response

Encoded URL format