authenticityKey

Verification procedure to proof the authenticity of a product by using the Ark blockchain.

Concept

Nowadays it is common that products are copied and presented to the market as if they are original. With a few simple steps we can use the Ark blockchain - or sidechain - to prove authenticity of a product.

Developing with authenticityKey

You need to make sure to have nodemon running.

1. Install dependencies: npm install
2. Build staticfiles 2.1. and watch for changes: make watch 2.2. without watching for changes: make build
3. Run server: make start

Concept

Nowadays it is common that products are copied and presented to the market as if they are original. With a few simple steps we can use the Ark blockchain - or sidechain - to prove authenticity of a product.

The Autenticity Key

Authenticate the product

By making a simple transaction to his own wallet (wallet x to wallet x) with a verificationKey in the vendor field a retailer/producer can initiate the authenticity of his product:

Do the following for individual product:

POST request with seed of the wallet to use to server:port/add

1. This generates a verificationKey (a unique string that identifies the product)
2. This signs the verificationKey with the seed of the wallet to create a signature
3. This sends a transaction to your own wallet with the above key in the vendor field (the key and transactionID are now publicely available)
4. This returns the transactionID and signature to attach to an authentic product (RFID/BLE/QR/etc)

The product is now uniquely linked to the blockchain and the producer.

Verify the product

GET request with transactionId and signature to server:port/verify

For the purchaser or seller of the product it is now very easy to proof that the product is authentic:

1. He retrieves the transactionID and signature from the product. The signature is only known to this product
2. He does a GET request to the server
3. This searches for the transactionID on the blockchain and retrieves the verificationKey from the vendor field
4. This retriever the public key from the sender of the transaction
5. This verifies that the signature is correct for this address and verificationField

To still figure out

In worse case a copier can now purchase a handful of original products and clone their keys and fake products can show up with all the same keys that will verify.

Optional

Create a 'notary' wallet that can authenticate producers/retailers as verified by sending a tranasction to the wallet of the producer/retailer.