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: 48
Hash: 5d6d5f1ec3879b123576462b5d57bda7b7d4fb66b6a561f1d57153f136c92dcb
Previous block: 238161e17f5efb5bf6c05e148c36b29a6a863233124ef75056b6630b7486d463
Next block: 4464f282a43643bf3de228d09cd920bf130933db1ad16f3f778fa00ff7dfc922
Weight: 868
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701597875
Stripped size: 217
Size: 217
Nonce: 0
Merkle root: c617a4c448bb6ea894dfe01ea48786aab69cfd9cf96cce125514d908b2905790
Median time: 1701597874
Difficulty: 4.656542373906925e-10
Confirmations: 2196
Chainwork: 0000000000000000000000000000000000000000000000000000000000000062
Bits: 207fffff