Keep each returned identifier and use its domain API to retrieve subsequent state. Contract IDs, token IDs, and transaction IDs refer to different objects. An HTTP response does not imply that every related asynchronous action is complete.
See audit history and asynchronous results.
Neuro-Ledger
Read ledger-backed application data
Use Agent API domain objects to inspect contracts, tokens, and transaction history
Use the Agent API resource that owns the object you need. There is no documented general-purpose Agent API operation for appending arbitrary Neuro-Ledger records.