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: 1227
Hash: 75eb3a41729124fb75590edc12d884db312869e4b2f1dab1280f0231c485df4c
Previous block: 0a1944ca3b71f04ca722d56b1a5c500e9c741e310861488125f5559dbd05f913
Next block: 0a907c92eaced6583fd73dad7267c6acba32062af4616be341c17db1f1251aa2
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697612
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 855627c3ca8e2e7f078a9002dd1702fab72a5a0f0bed3604b7689488b06a5714
Median time: 1718697611
Difficulty: 4.656542373906925e-10
Confirmations: 1017
Chainwork: 0000000000000000000000000000000000000000000000000000000000000998
Bits: 207fffff