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: 1039
Hash: 67e0a101b26fc598ee4e4a2349806487ea15264fc4e151135ff20b5184b390a4
Previous block: 09a288a78bbdd7b111b0d170f2be2f87d00e08fcf16268bf44d800e2be4965b1
Next block: 169938b3205e5d3ab132dc9d22a5f9959f81255932357fd3ad40c0b5f3ddec6f
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857842
Stripped size: 218
Size: 254
Nonce: 5
Merkle root: fbce56638f78af7ccbdf9b9544eddc6c5781e5264e77d28bbfec691bd61d216b
Median time: 1707857841
Difficulty: 4.656542373906925e-10
Confirmations: 1205
Chainwork: 0000000000000000000000000000000000000000000000000000000000000820
Bits: 207fffff