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: 2255
Hash: 5f0b28df9be48fc7d6d265789034cdd6e462ecac22da5eff11cc5c17f705648e
Previous block: 6ff058fb2344b309d8363a1a0d3fa0d7696b0624d80441d611dec2192ef83812
Next block: 1a27d8caa0d8b3c2fa4c0e4b8944c3c8ebaed563259a93704cea7fb247db7ea2
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719480985
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 3a75d674d0b41e15c73c9793377b8840a914c244cb77b1dd4c40dfa8b4b919ec
Median time: 1719480984
Difficulty: 4.656542373906925e-10
Confirmations: 37
Chainwork: 00000000000000000000000000000000000000000000000000000000000011a0
Bits: 207fffff