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: 1833
Hash: 7d0ed73fc738444673eb86d324cb0b13975d3f739adcaafb97fdd7ff7446a8c5
Previous block: 495bb1a9370f86ce52307a1b1db7202cf43fee28c9ccbffb16dad86b1bcb9ad7
Next block: 1e34887a6f699ad743ccdf65ef1e1315422cfc1b1d22bb4e74d2760745763e1a
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159229
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 438d774827f7613aa88599f32a8292c299674b9d94a419109a63bb6b55110a07
Median time: 1719159228
Difficulty: 4.656542373906925e-10
Confirmations: 411
Chainwork: 0000000000000000000000000000000000000000000000000000000000000e54
Bits: 207fffff