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: 1183
Hash: 6c149cd61be31062108450d95e8ec9590903ca7f6dfa510251f685c751448a1f
Previous block: 74402be87dc961bb8834932a3800cf9ccfef186f8186725828c3cb532f1904e8
Next block: 25ffd242ac9204e64640a59bde1a335c77b566fac96c23a1e4e5aff6035f2799
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857866
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 5b66b5312ae0412a0a4de771b56ae8e663d48b21f901c5001daad1c9e988b178
Median time: 1707857865
Difficulty: 4.656542373906925e-10
Confirmations: 1061
Chainwork: 0000000000000000000000000000000000000000000000000000000000000940
Bits: 207fffff