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: 86
Hash: 676ccfac183b80d400d19bc53233ba3489be1074570a30327a7102866b7ec9d2
Previous block: 601bb6207f03f3395d5d2b16db740339f8cd0d12773193832ecf9b44e6715e2b
Next block: 15a7446d7e4779f55f6b611e09af628a13e4fd821cd9e1e2961f454c10f939d0
Weight: 868
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701597882
Stripped size: 217
Size: 217
Nonce: 3
Merkle root: c834269ac6e918a1343d82124fe2d18cab180bfb22a09430dc95b5b114e8eff7
Median time: 1701597881
Difficulty: 4.656542373906925e-10
Confirmations: 2158
Chainwork: 00000000000000000000000000000000000000000000000000000000000000ae
Bits: 207fffff