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: 2093
Hash: 2fccec120528e69c3bb0cc2cb570a6ba9d50047f26168aeab81b4717b0f17d74
Previous block: 22143b015eda913beffacc30f7518f2ab7ae1bde5e051f839efd1e91236973df
Next block: 1afeceb6363b806a02e30c2c13a3dea4ac4c6eac30471e90894b931d0ad215e9
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964785
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 9ba343b12c225d2d37656514ac3be64f458fbf6cba792efa861f69ef6b7261cc
Median time: 1728964785
Difficulty: 4.656542373906925e-10
Confirmations: 151
Chainwork: 000000000000000000000000000000000000000000000000000000000000105c
Bits: 207fffff