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: 1235
Hash: 22336f4036fb511d6d8eb8b464460fe26f3b33a74195482214ad9bdc4e677ac6
Previous block: 0f78142d2fd9dd4ef58646701971a916c2f5a6fd0211a5cd3c0e3f1b2fdf43a9
Next block: 6544406f333aba516615de320323be33bc9a5dd4b7d7d114fd5d01b8ae20d5cb
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697613
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: a27de1f3ccb3c4d463794402f0ec22f810c1635c88ddf3b31d14ecc4c252cf87
Median time: 1718697612
Difficulty: 4.656542373906925e-10
Confirmations: 1009
Chainwork: 00000000000000000000000000000000000000000000000000000000000009a8
Bits: 207fffff