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. mxMfLjAez

Height: 1369
Hash: 5c366b2a7384ea062e0444599a0ff4049b87179d4b9ce460c069b16cb7f90592
Previous block: 20530e69a1d89873fc1d1d02550efda5588570cc70eff9cb1e3685046080f07a
Next block: 6d85054606086932d5d620ab6bb45a3aa7fff6d76bc51cdf7c09551798eccdaf
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697636
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: 82be30d02dbcb2e24f597a71179a69163cca8eb72b2d14dcc07882103791be38
Median time: 1718697635
Difficulty: 4.656542373906925e-10
Confirmations: 875
Chainwork: 0000000000000000000000000000000000000000000000000000000000000ab4
Bits: 207fffff