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: 697
Hash: 6c4d05eff1c428d4c7db701b73c0d867bd2bc1dccc6390b94823bd70df48cc24
Previous block: 743521cee496ebf3f3b725153a07c8be40947475832cdafd8b719d7441243949
Next block: 4c00c0c9816fe28d79cd0afdcf08f9ab214be07d603e7416832796d7f0d84533
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864260
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: eb10512d73a361decbeefec6a4f6e119c35d12c134fe7a554e6f4becffe2e96d
Median time: 1701864259
Difficulty: 4.656542373906925e-10
Confirmations: 1547
Chainwork: 0000000000000000000000000000000000000000000000000000000000000574
Bits: 207fffff