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: 2479
Hash: 3ad553f108ab9c5a14a73b9b2f3027a81a2800773791e5539923116b3687813f
Previous block: 293d5e15081954cc0fb2a20a926870347540f5b31a93819d9e60a8dc95e49afb
Next block: 39802cd860de8dccb44a4283d2647f540fd19258861c351bed332c9d0bf4d9e6
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847300
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 471681cd04f1e5e2b2e7b97bdea868ff8be6a5de951993fc0228dd466299ad49
Median time: 1743847299
Difficulty: 4.656542373906925e-10
Confirmations: 164
Chainwork: 0000000000000000000000000000000000000000000000000000000000001360
Bits: 207fffff