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: 1030
Hash: 1b560ff769bee148102499ffd92f5ad35881a102fc5c9de2eb54414db68c4555
Previous block: 579e30feedb5298c9cef712454ebe6251625885236ca164ed36b9899974ca16e
Next block: 00b92f39175951a586063c3b2e1600165b6f9eaa35c5439370e471753e41913c
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857840
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: e769f8dc5d47f3a7341b4eee09a1065b1c985078c41e8083b5ffbbebb6bc3cdc
Median time: 1707857839
Difficulty: 4.656542373906925e-10
Confirmations: 1214
Chainwork: 000000000000000000000000000000000000000000000000000000000000080e
Bits: 207fffff