Onboarding as custodian on DAML and Besu

Questions
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1

Hello

Trying tu understand the link between DAML and BESU blockchain, if a client is looking to onboard on digital parte form using DAML as a custodian the the onboarding would be on DAML or on the blockchain besu ?
Many thanks

2

Hi @sara1991

For your reference, here are the docs related to Besu: Canton Domain on Ethereum — Daml SDK 2.6.3 documentation

In a Canton deployment, Besu is used as infrastructure for the sequencer, which is the total order guaranteed multi-cast service. So the layers effectively are:

  1. Daml smart contract command interpretation running on participants.
  2. Participants exchanging command interpretation results (= transaction requests / responses) using the privacy preserving secure canton protocol.
  3. The protocol messages are being sent via the sequencing service operated by the sequencer with the expectation that for two messages, they are going to be delivered in the exact same order to all affected participants.
  4. That message ordering and delivery being provided by the sequencing service, in your case by Besu.

Please also have a look at the Canton 101 write up: Overview and Assumptions — Daml SDK 2.6.3 documentation

I hope that helps.