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: 1041
Hash: 6a825c42a8340a908d021a39fb49ea050943ca9b327762a501dcb97c6db3a9da
Previous block: 169938b3205e5d3ab132dc9d22a5f9959f81255932357fd3ad40c0b5f3ddec6f
Next block: 2e3deae0f0fe112f341f2ae29c71b4b3b38ece2a6305da050ad6a382d8353540
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857842
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 9d5a9985d5c7a9751f77e5803c4d18a41d5a1ca7479f6f2009da75a5fe9c3c7b
Median time: 1707857841
Difficulty: 4.656542373906925e-10
Confirmations: 1203
Chainwork: 0000000000000000000000000000000000000000000000000000000000000824
Bits: 207fffff