The explorer is running in 'regtest' mode. This saves disk space, but there is limited data.
The code for this application can be found at github.com/pdxrod/blockchain_explorer.

home    blocks

Enter a block height, e.g. 123, or the start of a bitcoin address, e.g. mgqFp9Dhy

Height: 2224
Hash: 5310f8fbe9fc7814c74ee8fce29c23cddb89bccbd52262da15443cf924d04b16
Previous block: 141b943695f93cf5cb79c3b0a4ad894badbfce7e64f773feca757044fa8a7b79
Next block: 63506ed1afd7444ed1d04ac817386f303bf1ac6b01055831b720294cae8698c8
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964807
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: e5a9e445596773a83dad848d681b3408dbfe6a6b7ed1bf3b775276a643069750
Median time: 1728964806
Difficulty: 4.656542373906925e-10
Confirmations: 20
Chainwork: 0000000000000000000000000000000000000000000000000000000000001162
Bits: 207fffff