Introducing Verifiable Digital Credentials By CannAmm
The first of its kind in Occupational Testing in Canada, CannAmm is introducing Verifiable Digital Credentials, a secure and tamper-proof solution that simplifies clearance verification for both workers and employers.
A New Standard For Clearance Credentials
Managing pre-access clearance is time-consuming and prone to errors.
Verifiable Digital Credentials by CannAmm streamline verification, offering secure worker control and instant employer access-all while meeting evolving compliance and privacy standards.


A Safer, More Compliant Workplace for All
Enhanced Credibility and Protection
As clearance information is issued and retrieved via our tamper proof platform, work sites will have the confidence of knowing a worker’s identity and clearance credentials are current and verifiable in real time every time.
Safeguarded Worker Privacy
Keeping employers compliant with new and upcoming privacy legislation, our solution digital wallet gives workers ownership to share and revoke access to their clearance credentials securely.
Streamlined Administrative Onboarding
Real time confirmation and seamless sharing of clearance save employers time spent on tracking and verifying access credentials.
Who Is it For?

Worksite Administrators
Prime Contractors who are responsible for validating access credentials and ensuring compliance

Worker
Workers who need to provide clearance letters to gain work site access.

Employers
Employers who require workers to undergo drug and alcohol testing before accessing work sites.
How Verifiable Digital Credentials Work
Increase confidence knowing workers on location are certified to be there.
Get Clearance Letter
Workers check clearance status on CannAmm‘s Website to obtain their verifiable clearance letter.
Add Digital Credentials
Workers scan the QR code on CannAmm’s website to add their clearance credential to the Credivera App, securely storing it in their digital wallet.
Gain Safe Access to Work Sites
Workers securely share their up-to-date clearance credentials from their digital wallet for instant access to work sites.
Powered by Credivera, the World’s First Open Exchange for Digital Credentials
Verifiable Digital Credentials give employers the confidence to ensure only the right people access the right places at the right time while allowing workers to maintain full control over their personal information.
The future of workforce compliance isn’t just digital — it’s smarter, safer, and already here.

FAQs
Employer FAQs:
What are verifiable credentials for workplace drug and alcohol clearance letters?
Verifiable credentials are digitally-signed proofs of an employee’s completion of a required process, such as a pre-access drug and alcohol test. These credentials:
- Can be instantly verified by an employer or work site prime contractor/owner.
- Provide tamper-evident assurance that the individual’s clearance status is authentic and up to date.
- Eliminate reliance on paper-based letters that can be lost or forged (also difficult to validate)
Why use verifiable credentials for clearance letters?
Secure & Authentic: The cryptographic signatures ensure no one can alter a clearance letter without detection.
Instant Verification: Anyone with the proper scanner or web link can verify the credential in real time.
Real-Time Updates: If an employee’s clearance status changes, the credential can be updated or revoked immediately.
Enhanced Compliance: Digital records make it easier to maintain and demonstrate regulatory compliance.
What is a verifiable credential?
A verifiable credential is a digital version of a traditional certificate or letter, secured by cryptographic methods. This ensures:
- Proof of Issuance: The issuing entity’s signature confirms authenticity.
- Proof of Integrity: Any alteration becomes evident and invalidates the signature.
How do verifiable credentials benefit organizations?
Automated Compliance: Tracking valid clearance letters across multiple locations or job sites.
Faster Onboarding: New hires can prove clearance status without extensive paperwork.
Reduced Overhead: Fewer manual audits and follow-ups for expired or missing letters.
How do we implement a verifiable credentials solution for drug and alcohol clearance?
Set Up an Account with CannAmm or request a modification of an existing account
Request clearance letters be activated (Defaulted to 30 days of activity),
Request when it is made available (current options are pre-employment and/or pre-access)
What are the technical requirements?
Browser Access: Most solutions are accessible via any modern browser.
Mobile Wallet App (Optional): Many solutions allow employees to store and share credentials via a secure mobile wallet (Microsoft Authenticator and Credivera App)
How are clearance letters protected?
Verifiable credentials use cryptographic signatures. If anyone tries to alter the data (e.g., clearance status or expiration date), the signature will no longer be validated.
Does the platform store personal information?
Only the digital signature and essential metadata (issue date, issuer, etc.) are stored. The details about the worker’s clearance are often held in the credential, which the worker controls.
Can clearance letters expire or be revoked?
Yes. Employers or authorized parties can set expiration dates (e.g., annual test cycles) or revoke a credential if:
- A new test is required.
- The clearance letter was issued in error.
Is this solution compliant with industry standards?
Yes, the platform fully complies with current industry standards and privacy regulations, ensuring reliable and secure credential management. Our leading verifiable credential solution also meets all relevant data protection requirements, using encryption both in transit and at rest and employing role-based access controls to safeguard sensitive information.
Worker FAQs:
How do Verifiable Digital Credentials benefit workers?
Portable: Individuals hold their own clearance credentials, which they can share with multiple employers or projects.
Data Control: Users decide when and with whom to share their clearance letters.
Quicker Verification: Minimizes administrative delays when proving drug and alcohol test results.
How do I access my credentials?
Workers can access their credentials through a secure digital platform provided by Credivera, or by using Microsoft Authenticator, or a digital wallet application.
What happens if my credentials need updating?
Credentials are updated in real time, ensuring your access remains current and accurate.
Can I control who sees my credentials?
Yes, workers have control over sharing and revoking access to their credentials as needed.
Do I need training to use this service?
The platform is user-friendly, but support and training materials will be available to ensure a smooth experience.