| ledger_key_hash | Ledger key hash used to identify expiring contract data or contract code ledger entries | string | | Yes | |
| is_evicted | If true, the ledger key hash has been evicted | boolean | | | |
| closed_at | The UNIX timestamp of the sequence number's age | timestamp | | Yes | |
| ledger_sequence | The sequence number of this ledger. It represents the order of the ledger within the Stellar blockchain. Each ledger has a unique sequence number that increments with every new ledger, ensuring that ledgers are processed in the correct order. | integer | | Yes | |