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: 2262
Hash: 1d82044759a8918519e564c41193f4772ad7dd0f1946404a8133573fad641ae6
Previous block: 5f98525ce609bdac058e53a60e0d0f5ed13c672e99b84a01c61fba32488ff414
Next block: 0fffe4301b1c9fcf1728a159c012e85ce7176a232366fc6566704f07b5d9a50a
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719480986
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: db0cce58a135695133365a1c9ee723ba0c0ba17baafde7da02d3b7c53bdd2808
Median time: 1719480985
Difficulty: 4.656542373906925e-10
Confirmations: 30
Chainwork: 00000000000000000000000000000000000000000000000000000000000011ae
Bits: 207fffff