#dusk $DUSK Today, while reading the identity architecture documentation of Dusk, I dug into the Citadel protocol—especially its Revocation & Expiration mechanisms. This is, in fact, the toughest technical bone to chew in compliant identity.
In traditional Ethereum SBTs (soulbound tokens) or simple DID systems, once a credential is issued to an address, it’s hard to revoke it invisibly unless you rewrite the chain. But that’s completely infeasible in regulated finance—an investor may be compliant today, yet be blacklisted tomorrow due to being added to an anti–money-laundering watchlist, or their KYC passport may expire and become invalid.$BTC
Dusk’s Citadel protocol uses accumulators and a ZK Revocation List to enable “dynamic, second-level revocation” of identity credentials.
Licensed issuers (Issuers) can inject the hashes of already-invalid credentials into an on-chain revocation tree without exposing the true identity of credential holders. When the user initiates a transfer next time, the ZK proof they generate will automatically verify that “I am not in the revocation tree.”
Once a credential has expired, the user can no longer generate a compliant proof, and the network will automatically block the transaction.
This kind of dynamic identity lifecycle management turns on-chain compliance from “static, one-time authentication” into “dynamic, real-time risk control.” The code, at the foundational layer, sets up continuous compliance monitoring for financial institutions every second.
$DUSK #dusk @Dusk
In traditional Ethereum SBTs (soulbound tokens) or simple DID systems, once a credential is issued to an address, it’s hard to revoke it invisibly unless you rewrite the chain. But that’s completely infeasible in regulated finance—an investor may be compliant today, yet be blacklisted tomorrow due to being added to an anti–money-laundering watchlist, or their KYC passport may expire and become invalid.$BTC
Dusk’s Citadel protocol uses accumulators and a ZK Revocation List to enable “dynamic, second-level revocation” of identity credentials.
Licensed issuers (Issuers) can inject the hashes of already-invalid credentials into an on-chain revocation tree without exposing the true identity of credential holders. When the user initiates a transfer next time, the ZK proof they generate will automatically verify that “I am not in the revocation tree.”
Once a credential has expired, the user can no longer generate a compliant proof, and the network will automatically block the transaction.
This kind of dynamic identity lifecycle management turns on-chain compliance from “static, one-time authentication” into “dynamic, real-time risk control.” The code, at the foundational layer, sets up continuous compliance monitoring for financial institutions every second.
$DUSK #dusk @Dusk