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. mgqFp9Dhy

Height: 2241
Hash: 59b8bc5ecb6c527bce291e340eddd118165de18663ac9c13f2b2a9776023aaf1
Previous block: 5fe40cb8192ec3e89294f5d651cf34b5f4e2f83da9629f0d30778922b4019d2f
Next block: 6835bce64456af785b3cc4a8d9707b6f7a79fbfb508c3b83f35cb19687322c20
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964810
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 5231c83c0a6cc80bf745d21f500eaa340868175f3bc49a3715837b99af22c306
Median time: 1728964809
Difficulty: 4.656542373906925e-10
Confirmations: 3
Chainwork: 0000000000000000000000000000000000000000000000000000000000001184
Bits: 207fffff