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: 1441
Hash: 7d4be52a8c2b428e501f5f71a93eac5811548c5bc5e4dc7278644a76fd740627
Previous block: 7d03d315f80ddb883ed4ab1d7b696ff50408209d83a5e0c878cf9b68f156bb2d
Next block: 4579c6e430933083eb9501be64a5bdb5cf1568defb0e838569a8e1a31470ea92
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697648
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: c15d870b836753693c93180965cf8d4f72d9b0c7d6a45a19a22896ea1a1b4fac
Median time: 1718697647
Difficulty: 4.656542373906925e-10
Confirmations: 803
Chainwork: 0000000000000000000000000000000000000000000000000000000000000b44
Bits: 207fffff