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.

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Enter a block height, e.g. 123, or the start of a bitcoin address, e.g. mxMfLjAez

Height: 2095
Hash: 18e16f38af186859be8e5071ba056694d16c6b83ca97ac809369e87f3e39ffbc
Previous block: 1afeceb6363b806a02e30c2c13a3dea4ac4c6eac30471e90894b931d0ad215e9
Next block: 36ecee95f489bf08b331d73150721bb09b27d8c1246fe3650d51adc758265ac7
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964786
Stripped size: 218
Size: 254
Nonce: 4
Merkle root: 91a13b64ed40e05d8a9a9311d46ef4e587c5dbeb4ca219b823dded7735c5543a
Median time: 1728964785
Difficulty: 4.656542373906925e-10
Confirmations: 149
Chainwork: 0000000000000000000000000000000000000000000000000000000000001060
Bits: 207fffff