Disclosed are some implementations of systems, apparatus, methods and computer program products for ensuring trust throughout the lifecycle of a non-fungible token. The system identifies, from a metadata data structure associated with the non-fungible token, a first network address associated with a first attribute of the metadata data structure. The system accesses a first file referenced by the first network address and generates a first hash value from contents of the first file. The system generates a modified metadata data structure that includes the first hash value by storing, within the metadata data structure, the first hash value in association with the first attribute. The system then generates a second hash value using the modified metadata data structure and stores, in a public trust ledger, a first smart contract including the second hash value and a second network address that references the modified metadata data structure. The system may then attempt to validate a smart contract based, at least in part, on the second hash value.