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Credential Monetization

"Pay-Per" Fees​

Pay-per-issuance and pay-per-verification fees are defined at the permission level of participants for a given Credential Schema of a given the ecosystem.

Example:

plantuml

Entities acting as issuers or verifiers for a given credential schema may be required to pay trust fees based on the schema's configuration and permission tree.

If trust fee payment is required, the entity must execute a transaction in the VPR to pay the appropriate fees before issuing or verifying a credential.

Key points for "Pay-Per" business models

  • For a given credential schema, ecosystem and their participants may define pay-per-issuance (or pay-per-verification) trust fees in their respective permissions.

  • In such cases, a participant ISSUER (or VERIFIER) must pay:

    • The corresponding issuance (or verification) trust fees for each involved permission in the tree;
    • An additional amount equal to the trust_deposit_rate of the calculated trust fees, allocated to the applicant’s trust deposit;
    • An amount equal to wallet_user_agent_reward_rate of the calculated trust fees, used to reward the wallet user agent that receives or present the credential;
    • An amount equal to user_agent_reward_rate of the calculated trust fees, used to reward the user agent (browser, app...).

Example with the permission tree above:

  • Total paid by issuer #C for issuing a credential: (10 + 5) * (1 + user_agent_reward_rate + wallet_user_agent_reward_rate + trust_deposit_rate) = 21 TUs
  • Total paid by Verifier E for verifying a credential: (20 + 5 + 2 + 30) * (1 + user_agent_reward_rate + wallet_user_agent_reward_rate + trust_deposit_rate) = 79.8 TUs

Fee Distribution Model​

Trust fees are consistently distributed across participants:

  • A portion defined by trust_deposit_rate is allocated to the participant’s trust deposit.
  • The remaining portion is transferred directly to the participant’s wallet.
note

wallet user agents and user agents that implement the verifiable trust specification must verify that the ISSUER or VERIFIER has fulfilled the required trust fee payment.
If not, they must reject the issuance or verification request.

The user agent and wallet user agent may refer to the same implementation.

Distribution example for the issuance by ISSUER #C of a credential, using the permission tree above, 20% for trust_deposit_rate, 10% for wallet_user_agent_reward_rate and user_agent_reward_rate.

plantuml

Distribution example for the verification by VERIFIER #E of a credential issued by ISSUER #C, using the permission tree above, 20% for trust_deposit_rate, 10% for wallet_user_agent_reward_rate and user_agent_reward_rate.

plantuml