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: 2435
Hash: 3a6431071aed1327369ee83ac6f9c51b80d4ed45bc5f3f652f8640b387ab212e
Previous block: 05bb9d41ac9c9f539c50d144a2582ca283b59bbd90a25ef907240e4331ec4e24
Next block: 471b3bf81426db86381bf78845d6e07184754a27cf391edd902fa9285bcb329a
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847292
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 72aaa83fe8c65cbf5fa52abcd05593d969fc8d527ab268ca81b479ec580fc185
Median time: 1743847292
Difficulty: 4.656542373906925e-10
Confirmations: 208
Chainwork: 0000000000000000000000000000000000000000000000000000000000001308
Bits: 207fffff