Blockchain tracking of a physical diamond token

A system comprising:

• a diamond commodity comprising a secured container including one or more diamonds and taggants;
• and
• a mobile device including a camera device and executing an application programming interface configured to access a first blockchain data structure, the first blockchain data structure storing a secured container smart contract associated with a cryptographic token backed by a value of the one or more diamonds, the cryptographic token is associated with a first cryptographic wallet, wherein the mobile device comprises a processor and a non-transitory computer readable storage medium storing executable computer program instructions, the computer program instructions when executed by the processor causing the processor to:
• receive an instruction to perform a transaction transferring the cryptographic token from the first cryptographic wallet on the first blockchain data structure to a second cryptographic wallet that exists on a second blockchain data structure, wherein the cryptographic token is prevented via a secured container smart contract from further transfers on the first blockchain data structure unless the cryptographic token is returned to the first cryptographic wallet on the first blockchain data structure;
• authorize the transaction via:
• a private key of the first cryptographic wallet;
• and
• an optical validation, performed by the mobile device, of the secured container based on a computational measurement of positioning and size of the diamonds and taggants, wherein the optical validation includes:
• receiving image data of a 3D shape of the secured container from the camera device included in the mobile device, wherein the image data includes multiple consecutive perspectives of the 3D shape of the secured container captured by the camera device via real-time rotation of the secured container;
• determining the received image data includes the multiple consecutive perspectives of the same secured container;
• and
• performing optical validation of the secured container confirming that the same secured container is physically presented based on the received image data including the multiple consecutive perspectives of the secured container.

A non-transitory computer-readable storage medium having stored thereon instructions that, when executed by one or more processors, cause the one or more processor to perform operations including:

• linking a secured container including diamonds and taggants as a hardware security module to a cryptographic token, wherein the cryptographic token exists on a first blockchain data structure as associated with a first cryptographic wallet;
• and
• transferring the cryptographic token from the first cryptographic wallet on the first blockchain data structure to a second cryptographic wallet that exists on a second blockchain data structure, wherein the cryptographic token is prevented via a secured container smart contract from further transfers on the first blockchain data structure unless the cryptographic token is returned to the first cryptographic wallet on the first blockchain data structure, the transferring-based on authorization including all of:
• registration of the secured container smart contract associated with the cryptographic token on the second blockchain data structure;
• a private key of the first cryptographic wallet;
• and
• an optical validation, performed via a mobile device, of the secured container based on a computational measurement of positioning and size of the diamonds and taggants, wherein the optical validation includes:
• receiving image data of a 3D shape of the secured container from a camera device included in the mobile device, wherein the image data includes multiple consecutive perspectives of the 3D shape of the secured container captured by the camera device via real-time rotation of the secured container;
• determining the received image data includes the multiple consecutive perspectives of the same secured container;
• and
• performing optical validation of the secured container confirming that the same secured container is physically presented based on the received image data including the multiple consecutive perspectives of the secured container.