keyPaths property
Where the key of each UTXO comes from (parallel to utxoKeys), as the read model records it. Entries beyond the list's length, or an empty list, mean "resolve the key from the aggregate's own address records", which is correct for every address the aggregate generated, discovered or recorded itself. An address the aggregate holds a type-42 record for is signed with that record's key whatever is given here.
Implementation
final List<KeyPath> keyPaths;