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: 1778
Hash: 6143f7929ebd243743e4adce122734508379bff6351167e55e369a8a9f397b05
Previous block: 4d0c8cb29c78f0a8814af3df5232099a68c0d1d97a726dd40897d9d5a7af99a8
Next block: 5c9cbe8409c4607091c28c0d0ca0caaa6e4be69dcddf455c2f225d72f455c238
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159220
Stripped size: 218
Size: 254
Nonce: 3
Merkle root: 1a005d8da1c58cc3a9dc27e733aedeccc4e5f8d493078ae9c2b1b29e0d8954ac
Median time: 1719159219
Difficulty: 4.656542373906925e-10
Confirmations: 466
Chainwork: 0000000000000000000000000000000000000000000000000000000000000de6
Bits: 207fffff