One per (address, mint), base units, signed. Only addresses the tx touched.
Base units, paid by feePayer; already inside the payer's native delta.
EVM: the lowercased address internal transfers were fetched for. Native deltas
are complete for it alone; others lack internal-transfer movement. null elsewhere.
One EVM, Bitcoin or Tron transaction as the chain settled it, whatever vendor read it.
KnarrowschainKey, ab2b.chain.key.