Historical data format is the same as provided by real-time Deribit WebSocket v2 API with addition of local timestamps. If you'd like to work with normalized data format instead (same format for each exchange) see downloadable CSV files or official client libs that perform data normalization client-side.
Tardis-machine is a locally runnable server that exposes API allowing efficiently requesting historical market data for whole time periods in contrast to HTTP API that provides data only in minute by minute slices.
See Deribit WebSocket API docs providing documentation for each captured channel's format
Click any channel below to see HTTP API response with historical data recorded for it.
During data collection integrity of order book incremental updates is being validated using sequence numbers provided by Deribit's real-time feed (prev_change_id) - in case of detecting missed message WebSocket connection is being restarted.