US Patent 9436923 Tracking unitization occurring in a supply chain

Some embodiments include a system for tracking end-to-end provenance of labeled goods despite re-unitization, repackaging, or transformation of the goods. The system can mint cryptographic codes including a first cryptographic code and a second cryptographic code. Each cryptographic code can include a private key to serve as a label and a public key that serves to identify a cryptographic address in a distributed consensus network. The system can track a source item by publishing a first cryptographically verifiable record that associates an original SKU and an original quantity with a first cryptographic address associated with the first cryptographic code. The system can re-unitize the source item by publishing, to the distributed consensus network, a second cryptographically verifiable record that indicates the first cryptographically verifiable record as a source and associates a new SKU and a new quantity with a second cryptographic address associated with the second cryptographic code.