- banlist.dat: stores the IPs/Subnets of banned nodes
- neurai.conf: contains configuration settings for neuraid or neurai-qt
- neuraid.pid: stores the process id of neuraid while running
- blocks/blk000??.dat: block data (custom, 128 MiB per file); since 0.8.0
- blocks/rev000??.dat; block undo data (custom); since 0.8.0 (format changed since pre-0.8)
- blocks/index/*; block index (LevelDB); since 0.8.0
- chainstate/*; block chain state database (LevelDB); since 0.8.0
- database/*: BDB database environment; only used for wallet since 0.8.0
- db.log: wallet database log file
- debug.log: contains debug information and general logging generated by neuraid or neurai-qt
- fee_estimates.dat: stores statistics used to estimate minimum transaction fees and priorities required for confirmation; since 0.10.0
- mempool.dat: dump of the mempool's transactions; since 0.14.0.
- peers.dat: peer IP address database (custom format); since 0.7.0
- wallet.dat: personal wallet (BDB) with keys and transactions
- .cookie: session RPC authentication cookie (written at start when cookie authentication is used, deleted on shutdown): since 0.12.0
- onion_private_key: cached Tor hidden service private key for
-listenonion: since 0.12.0 - guisettings.ini.bak: backup of former GUI settings after
-resetguisettingsis used