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. mupBAc74k

Height: 2254
Hash: 6ff058fb2344b309d8363a1a0d3fa0d7696b0624d80441d611dec2192ef83812
Previous block: 05b5deca24dfe251df58e3dc2cfb5e7ade10680b6b139e2503c685c47beed9fe
Next block: 5f0b28df9be48fc7d6d265789034cdd6e462ecac22da5eff11cc5c17f705648e
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719480985
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 6124190d89a431d894c7f0d6c9a32897e213c9e0ef785a5e444dfa9ef4b4f548
Median time: 1719480984
Difficulty: 4.656542373906925e-10
Confirmations: 38
Chainwork: 000000000000000000000000000000000000000000000000000000000000119e
Bits: 207fffff