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: 1567
Hash: 71b3b383534aeda1fb26c86e800b2eacd60fe4f8f4e5a621a08764bc57c85b43
Previous block: 5fb9946be1fb0477cbe1cd883fe483bc0af1401d5979253b180dd3c30cfc18e2
Next block: 75d9db2e6b5a82245589e7a9c773012769f874580d8cc789f3c4326bfeb007e9
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697669
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 58a3687c3ea6a8f2296d90088ecd386231aac840ac0d99db20a16f0340c6b223
Median time: 1718697668
Difficulty: 4.656542373906925e-10
Confirmations: 677
Chainwork: 0000000000000000000000000000000000000000000000000000000000000c40
Bits: 207fffff