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: 1210
Hash: 095457faaef48db44b654fad5460250a86a67cb3d449c71df67b23deff7ca896
Previous block: 1ee7d3fed20a32e548641187ae6c7dd7cebdcb89c4a3eeabb0df030771c0eebf
Next block: 39672a5a1c433794512b1fc33472580ba9f21983aee8924b5c13e657fbc90950
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697609
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: e9fbb5cc41bf950fcd769c91f846f508e0d89a6f93ac2b35348c97ad91179c75
Median time: 1707857869
Difficulty: 4.656542373906925e-10
Confirmations: 1034
Chainwork: 0000000000000000000000000000000000000000000000000000000000000976
Bits: 207fffff