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: 1233
Hash: 39cc560e290e0ee1f85b7549a02121d2571f7c46220d64316dc80dd7c1817e26
Previous block: 72087dbae243cd66da5ad063e05d8226259f675e03d4225db5920fb36097e072
Next block: 0f78142d2fd9dd4ef58646701971a916c2f5a6fd0211a5cd3c0e3f1b2fdf43a9
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697613
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 333be738146a5b9ad9686539f4d2651fadaeb63ae239170ad9ed05bdfcb12025
Median time: 1718697612
Difficulty: 4.656542373906925e-10
Confirmations: 1011
Chainwork: 00000000000000000000000000000000000000000000000000000000000009a4
Bits: 207fffff