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: 1779
Hash: 5c9cbe8409c4607091c28c0d0ca0caaa6e4be69dcddf455c2f225d72f455c238
Previous block: 6143f7929ebd243743e4adce122734508379bff6351167e55e369a8a9f397b05
Next block: 30c898c13dd7260a82b4e917281aa1552396bb3e1fa9b43a52787bc5c6c74f7b
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159220
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 83af499858cee09983e667cb79378ab2b688c0a8fbd9ae1811bfb2a6ce101130
Median time: 1719159219
Difficulty: 4.656542373906925e-10
Confirmations: 465
Chainwork: 0000000000000000000000000000000000000000000000000000000000000de8
Bits: 207fffff