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: 1596
Hash: 21381958bfa49fddc2b00e5f884e86c10e2c66a41019a1d741d52fc27e44b21c
Previous block: 05385285888e8ae0fb1092b87dc1126dfc2e7dc592b2d6eac8321bd73ba14bc3
Next block: 7668c65d8bff45286a269c089a046fafbbcc4539fe98b7e061e660036e4dd066
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697673
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: fd2560a2dd186b875bf12a4dac6b8a3b8b57bbc40f918a01b69a01cf966bf8b9
Median time: 1718697673
Difficulty: 4.656542373906925e-10
Confirmations: 648
Chainwork: 0000000000000000000000000000000000000000000000000000000000000c7a
Bits: 207fffff