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: 1988
Hash: 367d414b4fcececee6f38c14055f291f330179cc6fe853d8b6b29308a119b73b
Previous block: 345d5a847caffca43740f96d7d20ed118f41ca708e8745f24bddaed0dd7b78c3
Next block: 30e42c8f87b1e151bf8cb7dc458dfa36f3a7b609ed4443f05ea63d5e2edba406
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159255
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 47c5757179130c33195808f22b7ba9ce5eb8a7aacfc285c21c65d548f41ba4db
Median time: 1719159254
Difficulty: 4.656542373906925e-10
Confirmations: 256
Chainwork: 0000000000000000000000000000000000000000000000000000000000000f8a
Bits: 207fffff