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: 2288
Hash: 0ca86f0c5bbab6701aa1780fd2fed97687faf052716154cfa964832f68042402
Previous block: 5d0f6df930d69c08685c01ede33c5326faf67588e49271923ba8b88540892312
Next block: 747dc157b924a63ec7ca98ce08832abf19f985e7632eba97dc11dca7691c5378
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847268
Stripped size: 218
Size: 254
Nonce: 4
Merkle root: ddfabb9e8201fcf3c5c8926ab53286ee43cfc35fcc98f1ec51ec7485e542c53e
Median time: 1743847267
Difficulty: 4.656542373906925e-10
Confirmations: 355
Chainwork: 00000000000000000000000000000000000000000000000000000000000011e2
Bits: 207fffff