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: 1322
Hash: 2a2b1f1b5801f98a7b353a038f5911893458ac3ca122981007baa257f5ffcdc2
Previous block: 01e90445ee0dceff128a8770f024f723385dbc4017635d7f7a7271df9437051d
Next block: 79134116932a97de56e6f095ef02a7b1227d54111d0a001a9e63047cbb86f8fc
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697628
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: b52faed71b59a9ac53cb5d76bdd19b83e822f513656c040166c6ac93a684b1bf
Median time: 1718697627
Difficulty: 4.656542373906925e-10
Confirmations: 922
Chainwork: 0000000000000000000000000000000000000000000000000000000000000a56
Bits: 207fffff