Checkpoint digest
Optional
endPresent only on the final checkpoint of the epoch.
Checkpoint's epoch ID
The running total gas costs of all transactions included in the current epoch so far until this checkpoint.
Total number of transactions committed since genesis, including those in this checkpoint.
Optional
previousDigest of the previous checkpoint
Checkpoint sequence number
Timestamp of the checkpoint - number of milliseconds from the Unix epoch Checkpoint timestamps are monotonic, but not strongly monotonic - subsequent checkpoints can have same timestamp if they originate from the same underlining consensus commit
Transaction digests
Validator Signature
Commitments to checkpoint state