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: 1380
Hash: 451c862f1eddd4151911818b8cb258cd4011969abcbd014d2ee59e65c0663548
Previous block: 3448bc21b2572689c307c4132206a33276ba78fd5806f44adbe598c178fe19f8
Next block: 2011611bb12a79607693486e77b96365b6dcb1bbac739f3abc1190fb60a0b6b4
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697637
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 78adf203fb7643de3742c55adb364576c8898600f0306a5863da73f53862a892
Median time: 1718697637
Difficulty: 4.656542373906925e-10
Confirmations: 864
Chainwork: 0000000000000000000000000000000000000000000000000000000000000aca
Bits: 207fffff