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: 1601
Hash: 3cf8f078cc1fe0c7154260fe891a966dee27857fb9966bf6870078387576c7b7
Previous block: 5deadc59c7ab950d55c69221f61f89babf63feef829d7c3a4e4eae28e4fb3341
Next block: 41abd359f314050a752cb3dbd08b43e2ee6fc03bb264f29dfcd864ce2984998d
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697674
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 2597d0282abbed968124b7880ee929572efc4693e601e6194b1583ef586f878b
Median time: 1718697673
Difficulty: 4.656542373906925e-10
Confirmations: 643
Chainwork: 0000000000000000000000000000000000000000000000000000000000000c84
Bits: 207fffff