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: 2441
Hash: 725f9fad0f14a9ce6f34fd3f64da0cde566aa4b965fee4fd014aca74335217dd
Previous block: 65d299709cd07f26554fb61a57488ddd8d574e13227e4c68cfd960cfa6ac64d3
Next block: 1b1764672014111d03dbc676ee419eadcd9727d42f359d9f2e46668751160f45
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847293
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 4b57f5899bc8c5c698193201948835cfc09d0ac5bdd14b62dd748a966e8d6501
Median time: 1743847293
Difficulty: 4.656542373906925e-10
Confirmations: 202
Chainwork: 0000000000000000000000000000000000000000000000000000000000001314
Bits: 207fffff