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: 2235
Hash: 25e9322dd735d70647e02a8314d4c50143e4b0c12116a7e51f0356bd1202431e
Previous block: 6ba425f46674ea24f144a1b3fd3559373502596668c77bd8d16216d0b5ef0c5a
Next block: 46bf5fbaad07ba164cf0e55c72e20bb64ce58568069e7654fe9eb334b2668deb
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719480982
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 1c3647ef52f6543b3c2e4663c7bde5e924a84a75a51a6254618e581955768982
Median time: 1719480981
Difficulty: 4.656542373906925e-10
Confirmations: 57
Chainwork: 0000000000000000000000000000000000000000000000000000000000001178
Bits: 207fffff