Canton has no global state root. That's the whole problem with connecting it to IBC. The Cosmos side already has a fix: ibc-go ships an attestation light client that checks k-of-n secp256k1 signatures instead of merkle proofs. Daml can verify secp256k1 since Canton 3.4. No ed25519 yet, so it can't check CometBFT validator sigs directly. So the missing piece is a native Daml implementation of IBC v2. Who's building it? @CantonNetwork @cosmos
Saad AltafShare
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