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: 1228
Hash: 0a907c92eaced6583fd73dad7267c6acba32062af4616be341c17db1f1251aa2
Previous block: 75eb3a41729124fb75590edc12d884db312869e4b2f1dab1280f0231c485df4c
Next block: 106cc27234ec1e0d6aff1e367d8c065c607bc2c95904a703f36ac4da628d0ce5
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697612
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 3790913fe226d737dc5d692237a90dfe10aa70b623c9e142d61eb896099b5132
Median time: 1718697611
Difficulty: 4.656542373906925e-10
Confirmations: 1016
Chainwork: 000000000000000000000000000000000000000000000000000000000000099a
Bits: 207fffff