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: 1048
Hash: 381011d5b53b2a49fd0e61a8f3bca9fce054ed9ac5b0c4dc6070a3a9fa7c31c8
Previous block: 3b7be6db7a41dfb4b6cd423351fb4ea10f82a3711ec9c70ccbf37b8bafb516a9
Next block: 469c1e36ca42d043491d85a84f76655b253315aa8427c3ad6e49af76be6ff945
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857843
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: d3d58c2b5cac4be63390a5ec42f55804f724d846a20e6da171315149a16e0054
Median time: 1707857842
Difficulty: 4.656542373906925e-10
Confirmations: 1196
Chainwork: 0000000000000000000000000000000000000000000000000000000000000832
Bits: 207fffff