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: 1835
Hash: 4a696f25a1e6ec757ac7b2948f5e871860f61fd6a178baf26b2fe853ecfefc55
Previous block: 1e34887a6f699ad743ccdf65ef1e1315422cfc1b1d22bb4e74d2760745763e1a
Next block: 3806e6f0baa289a22be91b073b8f09dfb9a55b25bb23d5f7302faedb667f9366
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159229
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 9dd16f465bc5898689d742132127d0a9858779f49349c8abe34c8de52545b3e8
Median time: 1719159228
Difficulty: 4.656542373906925e-10
Confirmations: 409
Chainwork: 0000000000000000000000000000000000000000000000000000000000000e58
Bits: 207fffff