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: 1031
Hash: 00b92f39175951a586063c3b2e1600165b6f9eaa35c5439370e471753e41913c
Previous block: 1b560ff769bee148102499ffd92f5ad35881a102fc5c9de2eb54414db68c4555
Next block: 2b5d160068cb831fa8dc902bd94f6ab75b7f87fcb418a430fa7d290030befef7
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857840
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: dee21ce4600b8f4ea7467de5995564265bcd859c799cd4e20071773fea95f1e3
Median time: 1707857839
Difficulty: 4.656542373906925e-10
Confirmations: 1213
Chainwork: 0000000000000000000000000000000000000000000000000000000000000810
Bits: 207fffff