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: 719
Hash: 096b87881fa21c782fd115655610ac2c9cf9733c0dacde7891b854b5a2e3af3d
Previous block: 014f418b0a7d935f0d016905b7785440facbcb50e8e5c8d027b608940627738a
Next block: 76f553c97ecfa434734ab2396760336b66b6ed37664ce2f5e28446a0c0912af9
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864263
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 6232bafac81a0794dcf5116892d215c8cca388c424d3977cc785e496566c7162
Median time: 1701864262
Difficulty: 4.656542373906925e-10
Confirmations: 1525
Chainwork: 00000000000000000000000000000000000000000000000000000000000005a0
Bits: 207fffff