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. mupBAc74k

Height: 2267
Hash: 3d9b95bf0516fe65fa0a23cf7a4742a646d522621b4fa787683084b0668b2425
Previous block: 4cb4d7926af4307b3bba9a1af4561b72d01067d21ed6a3e21a57f0638d638773
Next block: 27e7f4df62bf48a19cda532fe211ef2b241cf2124f87eef3d5cb73f935038c6e
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719480987
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: 0bdeb2ef3d60cfad55bc52ec188ad6c363b52bd875f22a8c4cb1835fdc1f7b8a
Median time: 1719480986
Difficulty: 4.656542373906925e-10
Confirmations: 25
Chainwork: 00000000000000000000000000000000000000000000000000000000000011b8
Bits: 207fffff