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: 2042
Hash: 3c8f6c7bedece1d9c4d11d657cc3fb2e38bf198c57cd42c150e41942576d9966
Previous block: 1bcd0daf7737c90270c578dcc28d0180d9937fc66fba9523f19f9407e212aa83
Next block: 31d6d28900f1b4e17b3ad5767e522d16720d77b47af88a0fc9b7ed4b54c4967d
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964777
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: 2d13934285ee7f979a437feaa1bfaf13fbb002002b567cae7d256fa50f3ec083
Median time: 1728964776
Difficulty: 4.656542373906925e-10
Confirmations: 202
Chainwork: 0000000000000000000000000000000000000000000000000000000000000ff6
Bits: 207fffff