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: 2255
Hash: 0a0a08ded60caa717e7d011f97e63bffc8727c7ee3108d757b595fe53662a21b
Previous block: 31ebc3a06bd5a67e930f052568c7c10a2f62cfba18fe1d598d01e0f5adcbade9
Next block: 0817941e54eaae044276d798f3ac6b487a2aecb4e4b916b2f17ce53ae7e86bb4
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847262
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 0f3e792929d3f6839750aee68bbebe2ffe70812c68cedb36001170ca3a337db3
Median time: 1743847262
Difficulty: 4.656542373906925e-10
Confirmations: 388
Chainwork: 00000000000000000000000000000000000000000000000000000000000011a0
Bits: 207fffff