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. mupBAc74k

Height: 2218
Hash: 6320b46efef137f71642cb334114317624227f8cf25439db098178a21a27f306
Previous block: 3a795a280abac3c053106381aa962ec6d5a66db2c0c868eb6ad6d600c2a4b504
Next block: 6a7ea5eb8873d36577f0c1f7640ff33e990f21db23fb21d203edd16a8e0ec1d7
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719480979
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: e4930ad18225e89aae7fe205ed70b115fafdfd0e8b2795e66ff6fecd328389c1
Median time: 1719480978
Difficulty: 4.656542373906925e-10
Confirmations: 74
Chainwork: 0000000000000000000000000000000000000000000000000000000000001156
Bits: 207fffff