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: 1375
Hash: 2eda56feab86d210a1130e921a8897750a815bfb5ecf77766b1af2b1f0d49e95
Previous block: 3c14327639a84b8f2fa5f778839b8412e8e8e5b3dfc8cbc672051f28b3e345e6
Next block: 5ef5777d6a18778e6d2956bdeefff94942ad8a8756adbcc5f40d0cc953213640
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697637
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 9665119df0404c568a242298b52a1f93186a914f66a9b55e2cd376d7bfb14095
Median time: 1718697636
Difficulty: 4.656542373906925e-10
Confirmations: 869
Chainwork: 0000000000000000000000000000000000000000000000000000000000000ac0
Bits: 207fffff