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. mkrgsKuFE

Height: 1593
Hash: 0905c99ba86dc8d5855b86133812fb59ede6da3d585b645d2efe8a14509967ee
Previous block: 304db86311fc7a70e257ebff13a9adcfd5c9b6198dc9c24879bc08e93401afae
Next block: 29609ed184d172baa055ee119b3cb1e9d0dad4eb305fa3cc5462d6590208bd6d
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1708932135
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: c293889b4a64534fc5d16600b3c73c688aa63bbbb7b682dd3b096ad6263ed654
Median time: 1708932134
Difficulty: 4.656542373906925e-10
Confirmations: 16
Chainwork: 0000000000000000000000000000000000000000000000000000000000000c74
Bits: 207fffff