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: 2248
Hash: 3c41f821fe08d85c1a4e5297e87dc4c713d6f088712ec4e8a098e74c2589ba96
Previous block: 3cdeab58561d8f9cd9da910267c71a4aebcc33c4d37f709e3bc78fe4e0d7b628
Next block: 4f049345138110aaf5f7660c284f7f49cd51618c20ba753e58b7a2ab3484121b
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847261
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: bc90d587dd4a16cabaab1f40919117516ee9efcfae73b2031dba192412fa585a
Median time: 1728964810
Difficulty: 4.656542373906925e-10
Confirmations: 395
Chainwork: 0000000000000000000000000000000000000000000000000000000000001192
Bits: 207fffff