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: 2240
Hash: 5fe40cb8192ec3e89294f5d651cf34b5f4e2f83da9629f0d30778922b4019d2f
Previous block: 2ee8e9fbbcf9127a05fb85cb3d95fa9948801ff04a014d67caf54304a5af96b4
Next block: 59b8bc5ecb6c527bce291e340eddd118165de18663ac9c13f2b2a9776023aaf1
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964810
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: bbf247342fbe99466dbf4e16832b14149f96adce82cb5206985adf2439ce057d
Median time: 1728964809
Difficulty: 4.656542373906925e-10
Confirmations: 4
Chainwork: 0000000000000000000000000000000000000000000000000000000000001182
Bits: 207fffff