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.

home    blocks

Enter a block height, e.g. 123, or the start of a bitcoin address, e.g. mxMfLjAez

Height: 58
Hash: 1524ccea349ba9f976be4262b0397e6305814f7d7a68d03887424f6698c207da
Previous block: 79cd05adc9f63060996b7d05624033aeb56bb6e10855771162ca7b0fb9129ffe
Next block: 136dfbd3737b46323f3de732a2b244a18087034b9fe799be7fe6afd99d0a7416
Weight: 868
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701597877
Stripped size: 217
Size: 217
Nonce: 0
Merkle root: 253a63be1c19d842494a71d80a6a19bb805faa3f8123deb770c5c00eac499d6f
Median time: 1701597876
Difficulty: 4.656542373906925e-10
Confirmations: 2186
Chainwork: 0000000000000000000000000000000000000000000000000000000000000076
Bits: 207fffff