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: 188
Hash: 16c3b251ca6a76960de66f0f7765e6f6f01664abe45e9e569c1ad7e9e1523351
Previous block: 1d76589da84bb06e92ba4968afb972c755d0e65c6c3ef008f6b2503e34c68ab8
Next block: 173bf60ae2c3893a08ce963d5bc8b52ffe0a74aec85925101fa35a4575cee3ca
Weight: 872
Versionhex: 30000003
Version: 805306371
Transactions:
Time: 1701597899
Stripped size: 218
Size: 218
Nonce: 2
Merkle root: cedfe7b33da08c40365a1d85bb6bffb478acaf5233eda146e176184485d9d49e
Median time: 1701597898
Difficulty: 4.656542373906925e-10
Confirmations: 2056
Chainwork: 000000000000000000000000000000000000000000000000000000000000017a
Bits: 207fffff