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: 1402
Hash: 0633e5bb9d3849d410e6c3d854bf4a8d7a3f29dc7d064852edad5ae626f4aa14
Previous block: 02cfff99334a170da6fb88d22505276e65dbc9d1a3520ede266ba1ad3cae92fd
Next block: 25aa5b3568a2bb8cec5b6bd18128dc9825315aa606b018a37d790cb0f6e049d1
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697641
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: ff54227ce02798cdb8555adaef8bfa874556897bd6ce0741d9b0b907a9b90879
Median time: 1718697640
Difficulty: 4.656542373906925e-10
Confirmations: 842
Chainwork: 0000000000000000000000000000000000000000000000000000000000000af6
Bits: 207fffff