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: 2225
Hash: 63506ed1afd7444ed1d04ac817386f303bf1ac6b01055831b720294cae8698c8
Previous block: 5310f8fbe9fc7814c74ee8fce29c23cddb89bccbd52262da15443cf924d04b16
Next block: 0f7b59b8713ad65b12ad595b7bfc2679d876ca7aa13227f0b03f11dd7c07455c
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964807
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: c40b92401ed32561504ab2286c2c996d95517cfad74982a7a612c8359623dd09
Median time: 1728964807
Difficulty: 4.656542373906925e-10
Confirmations: 19
Chainwork: 0000000000000000000000000000000000000000000000000000000000001164
Bits: 207fffff