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: 113
Hash: 41c6dd0ad7db6e2bfca83011b97647af48a33148dbe10a5e79babca4582ba9f9
Previous block: 4268d743e5d98d77e87e436139b49889e986981efa45e19401072e365457f127
Next block: 7b89de45abf92065fa90abf50c45debab1fb2f02abdccb373dd4e7f5079feb4d
Weight: 868
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701597886
Stripped size: 217
Size: 217
Nonce: 2
Merkle root: ff8e8743b1c5d9ac7f5d84680c3941845ee8e2590cb4061d02372a58a201c653
Median time: 1701597885
Difficulty: 4.656542373906925e-10
Confirmations: 2131
Chainwork: 00000000000000000000000000000000000000000000000000000000000000e4
Bits: 207fffff