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: 1009
Hash: 75fd13b91dd13f2e8fc0342b1fc2e5a20f72e475d22c875b1932e9c3bb38ba1c
Previous block: 15d98d1d81130cf1fdd69af122fc1e90fb869a918a1b66c8935736bfe971351f
Next block: 60ef512ccae0a634014ea194f0b4986eb81b523146757f7ece29561a8f098614
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857837
Stripped size: 218
Size: 254
Nonce: 3
Merkle root: 66c8df0df50f9e79424963f076f8771ac9fea475848af702a73fcbd56ae11dfb
Median time: 1707857836
Difficulty: 4.656542373906925e-10
Confirmations: 1235
Chainwork: 00000000000000000000000000000000000000000000000000000000000007e4
Bits: 207fffff