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: 592
Hash: 55744c6e742c52a8f119d598c60159b357283cd231e903b294de311c5c545e49
Previous block: 691d6e3f6cb0a23adac4e298f2e8e85b06978fd405dfc704b784cf52559dacd8
Next block: 5c55a29feacd81754d83fa626ba1515e34368d098105836a1a6370be5b048a63
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864242
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: cd540ad8c443f9fc2d9afcd3448ae776e2aae99376b75aa145b2aa5e6a546add
Median time: 1701864241
Difficulty: 4.656542373906925e-10
Confirmations: 1652
Chainwork: 00000000000000000000000000000000000000000000000000000000000004a2
Bits: 207fffff