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: 32
Hash: 0e2c28bd149d74a8dab449373dc47d0d60f673b03f725e27da3cca259c93faaf
Previous block: 119a16f1e3d52ad6af7d2638107aaee3860f4fc8ad66d43bba73018e0fec8c26
Next block: 747670c7db24e7b49432e149d97386dc18089c5e24bd0cf5bc34efd37fe77d69
Weight: 868
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701597873
Stripped size: 217
Size: 217
Nonce: 4
Merkle root: 47b3643fee4cf9aa1d2a5ab9a47eba1aa54f734f2caeb5703ba470d214d518b0
Median time: 1701597872
Difficulty: 4.656542373906925e-10
Confirmations: 2212
Chainwork: 0000000000000000000000000000000000000000000000000000000000000042
Bits: 207fffff