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: 1040
Hash: 169938b3205e5d3ab132dc9d22a5f9959f81255932357fd3ad40c0b5f3ddec6f
Previous block: 67e0a101b26fc598ee4e4a2349806487ea15264fc4e151135ff20b5184b390a4
Next block: 6a825c42a8340a908d021a39fb49ea050943ca9b327762a501dcb97c6db3a9da
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857842
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 778082f38e67664c9260ad509cfa1fcf19558e41e6ca1ca2a007f9a1e2006f1a
Median time: 1707857841
Difficulty: 4.656542373906925e-10
Confirmations: 1204
Chainwork: 0000000000000000000000000000000000000000000000000000000000000822
Bits: 207fffff