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: 2544
Hash: 5d43478e8b8386f6bc47687884f7a958a802eef1870f33e3d336238d2e5a2c64
Previous block: 0907fcf49bfd8b84a0380b3ba45b9114342a68cecef658b25359bddf6d9e743e
Next block: 2be5bcace21be283d4a40ef3f3799d17899bfdd3c0f0417d527af9c927f3bfc0
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847311
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 6f3660a104df5f647287f80c5f1f9eb272af88e8a877e3c220993b2199f13693
Median time: 1743847310
Difficulty: 4.656542373906925e-10
Confirmations: 99
Chainwork: 00000000000000000000000000000000000000000000000000000000000013e2
Bits: 207fffff