At Spruce, we’re building a product suite to manage all aspects of the data supply chain. Here’s the latest from our development efforts:

Tezos DID Method

The Tezos DID Method specifies how Tezos can be used for DID creation and management, compatible with the issuance, storage, and verification of Verifiable Credentials.

  • We are actively implementing TZIP-19, which is the smart contract interface necessary to implement the Tezos DID Manager.


DIDKit is a cross-platform toolkit for working with W3C Decentralized Identifiers (DIDs) and Verifiable Credentials (VCs).

  • The HTTP server has been implemented, and it passes the VC HTTP API test suite.


Credible is Spruce’s native credential wallet for the consumption, storage, and presentation of Verifiable Credentials on Android and iOS.

  • We demonstrated a complete workflow integrated with one of our initial use-cases with HIE of One, dealing with patient-directed health records.


Keylink is Spruce’s tool to link existing enterprise accounts to keypairs.

  • We’ve completed the integration of verifiable credential issuance for files using libssi (our native library), did:key, and ISCC ID.


Intake is a smarter onboarding tool for businesses via secure document collection and processing. These artifacts can then be used as evidence to generate and issue credentials to the counterparty that originally uploaded them.

  • We’ve completed our initial design phase for the first MVP iteration of Intake and have begun to implement it.

If you would like to discuss how we would deploy the architecture described above for a specific use case, please take 30 seconds to leave us a message, and we will respond within 24 hours.

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