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: 116
Hash: 0908a5abd6b8181921aede39ac22299641efe826fa1c128c3a2406b0940c27ce
Previous block: 54b6b2b82f57cc628b134a6f85858573391787c10fcf14a400947a02fbe32a8f
Next block: 7d9627e467313b2735de29d63be6cc75684af4553d59724193c96446d39e59d7
Weight: 868
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701597887
Stripped size: 217
Size: 217
Nonce: 2
Merkle root: 8681e48d6d544fb01df9fc2e437bd280a0ee2f9a74f1259e965625baf216e715
Median time: 1701597886
Difficulty: 4.656542373906925e-10
Confirmations: 2128
Chainwork: 00000000000000000000000000000000000000000000000000000000000000ea
Bits: 207fffff