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: 132
Hash: 2c188ca6690481f7e973d22386fc94b185ef72df2fd84247c6c462ade770f638
Previous block: 0ff72961f913df6925a84e4a07532d388e13b0e8168067e6bbf32a5194d9c29e
Next block: 65d72a71d521fb1d2690b1c13f6a80632f3e53efec39bd801e3e55a22804debf
Weight: 872
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701597889
Stripped size: 218
Size: 218
Nonce: 0
Merkle root: a208126519278eb8d5f84ace396ef0d2c80ffd981e7c83b3341064d8c64b0477
Median time: 1701597888
Difficulty: 4.656542373906925e-10
Confirmations: 2112
Chainwork: 000000000000000000000000000000000000000000000000000000000000010a
Bits: 207fffff