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: 2243
Hash: 0f9404e0954a6fd65b04ad607dfaa609d59406b6fe4cd6579ed6cc77b9568326
Previous block: 7543125e47893c87e07c709482b25c8701d519ee00f7662719bfa0307f78c000
Next block: 66c717a4bb1bedf5ffcec6fdac347b6ddd3442c38e8d948cbff36ca0f4e1c229
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719480983
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: d0cb51a31067d09eb7cb6f083ec599c0c7f71b0be9b6fed20184206853acf598
Median time: 1719480982
Difficulty: 4.656542373906925e-10
Confirmations: 49
Chainwork: 0000000000000000000000000000000000000000000000000000000000001188
Bits: 207fffff