1 * zcash.conf: contains configuration settings for zcashd
2 * zcashd.pid: stores the process id of zcashd while running
3 * blocks/blk000??.dat: block data (custom, 128 MiB per file)
4 * blocks/rev000??.dat; block undo data (custom)
5 * blocks/index/*; block index (LevelDB)
6 * chainstate/*; block chain state database (LevelDB)
7 * database/*: BDB database environment
8 * db.log: wallet database log file
9 * debug.log: contains debug information and general logging generated by zcashd
10 * fee_estimates.dat: stores statistics used to estimate minimum transaction fees and priorities required for confirmation
11 * peers.dat: peer IP address database (custom format)
12 * wallet.dat: personal wallet (BDB) with keys and transactions