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: 2249
Hash: 46cc7a7a5a12a9754246a7b789efe917d5a8102628b21a257d15578467e64271
Previous block: 572fae21e5e1ead6104073a73161fd9a6735bf60b4651a509236855a7d75ec32
Next block: 672321364e260ae0cf2a1fe92e0bde2a59546a9115ac821a9347efa1937e6224
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719480984
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 571968e9f6cf13f6976482cf300f6c668ec09ce5df91a70ada9c37c4bc657047
Median time: 1719480983
Difficulty: 4.656542373906925e-10
Confirmations: 43
Chainwork: 0000000000000000000000000000000000000000000000000000000000001194
Bits: 207fffff