Fuente: Wipo "digitalization" Systems, methods, and computer-readable storage media of exchanging digital assets using a public key cryptography framework. One method includes encrypting at least one digital asset on an internal ledger and storing the encrypted at least one digital asset on an internal ledger. The method further includes receiving a signed exchange request signed by a first key corresponding with an encrypted digital asset on the internal ledger and providing, to an inter-provider ledger, a second key based on interfacing with the inter-provider ledger based on establishing a first data feed. The method further includes determining the signed exchange request was verified. The method further includes updating a central ledger by interfacing with of the central ledger via an application programming interface (API) based on establishing a second data feed and wherein at least one of a plurality of fields of the encrypted digital asset is a universal field.