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: 1872
Hash: 65fd25b05210eb26c08a3607daf6504dbc06ca114f078a439b10534fa6068a17
Previous block: 43411b14545cf306c9b5fbc1b894b85a5a006e3aef412449759873410e55710c
Next block: 1b0e824ec8d61364b96ee08a3b891a4e8fcf674b2e62260530d2acec1a680577
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159235
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: bf67c96b3839efe4de777c0e23142cb47d640916a910436dd625e1090793938b
Median time: 1719159234
Difficulty: 4.656542373906925e-10
Confirmations: 372
Chainwork: 0000000000000000000000000000000000000000000000000000000000000ea2
Bits: 207fffff