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: 2230
Hash: 1c2550f0c82d9aa28e0bb47df2ac27dfd95dca3af05f35c768944f6bc79732f4
Previous block: 5b1f702298a3ada852008b43fb20f3b00a7df28bd7414db878317c71ebea4586
Next block: 5a98f212d3d467503a8c69c997d368bf19c3526676bcfd23ec83a7a2016f01a3
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719480981
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 6067b4461359452f89b6155acef45e075b7060cb816cea092791679687bf8c6f
Median time: 1719480980
Difficulty: 4.656542373906925e-10
Confirmations: 62
Chainwork: 000000000000000000000000000000000000000000000000000000000000116e
Bits: 207fffff