California Cannabis Proof of Origin
stamp stamp

To verify the origin of a product, enter the alphanumeric code displayed on the stamp and click VERIFY.


Please enter a stamp code that is 6 characters long

searching for stamp: ###

product picture

###

Product Type:

Packaging:

Stamp Code:

Jurisdiction:

Product ID:

SKU:

Producer:

Producer License:

Producer Website:

Registration Location:

Registration Date:

THC %: %

Net Weight (g):

Batch:

Test Results:

If the product description shown does not match the product you purchased, please Contact Us.

After verifying the alphanumeric code, check the authenticity of the stamp by tilting it away from you. When tilted, the color to the left of the cannabis leaf will change from pink to green. If you see no color shift, please Contact Us.

The product verification process failed.

Instructions

After verifying the alphanumeric code, check the authenticity of the stamp by tilting it away from you. When tilted, the color to the left of the cannabis leaf will change from pink to green. If you see no color shift, please CONTACT US.

California Cannabis Proof of Origin

In California, great climate, diverse strains and years of growing experience work together to produce some of the world's finest medical cannabis.

For the first time, it is easy for patients and dispensaries to confirm the authenticity of California cannabis products through the use of the new Proof of Origin system. The system also improves awareness of California's renowned medical cannabis products.

Patients and dispensaries can use it to:

  • Verify that an item is a genuine product
  • Obtain information about the product's origin, including when and where it was produced
  • View information about producers, products and product test results
  • Report concerns about product or stamp integrity

Download the app for free!

App Store

The system is available using the California Cannabis Proof of Origin iOS app or this web site. You can use the app to verify a product as illustrated below:

1. Locate secure stamp
2. Detect QR code
3. Record color shift
4. Display product information

1. Locate
secure
stamp

2. Detect
QR
code

3. Record
color
shift

4. Display
product
information