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: 1323
Hash: 79134116932a97de56e6f095ef02a7b1227d54111d0a001a9e63047cbb86f8fc
Previous block: 2a2b1f1b5801f98a7b353a038f5911893458ac3ca122981007baa257f5ffcdc2
Next block: 08b25075378b05e94ec2d0f1ad33150a1b49ec798a335eee3449c3179bae03a2
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697628
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 52e04a75a2b3762e80b32d255a4bb414733b2d3dc7add33876186c63b30c9cf0
Median time: 1718697627
Difficulty: 4.656542373906925e-10
Confirmations: 921
Chainwork: 0000000000000000000000000000000000000000000000000000000000000a58
Bits: 207fffff