Is issuer always a signatory on asset contracts?

Questions
1

The skeleton Daml project includes this template…

template Asset
  with
    issuer : Party
    owner  : Party
    name   : Text
  where
    signatory issuer
    observer owner

…where the issuer is a signatory.

As another example, the Amulet model (used for Canton Coin) includes this…

template Amulet
  with
    dso : Party
    owner : Party
    amount : ExpiringAmount
  where
    signatory dso, owner

…where the dso is a signatory with the owner.

Conceptually, this means that the issuer is “involved in” every (sub-)transaction that archives and/or creates this asset. For example, for UTXO-style contracts, the issuer is involved in mints, splits, transfers, etc.

Question: :thinking:

Is it possible in Canton to create a smart contract in which an issuer mints the asset, but is not required to verify splits, transfers, etc.?