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: 2041
Hash: 1bcd0daf7737c90270c578dcc28d0180d9937fc66fba9523f19f9407e212aa83
Previous block: 7f2665798f7e2876188b1522f3bf3a2caea9b08f27123c9c36012bb5590e5eab
Next block: 3c8f6c7bedece1d9c4d11d657cc3fb2e38bf198c57cd42c150e41942576d9966
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964777
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 983eb018a73cd778d77a87569d1e40b7c466ae74cb8cce51f3ffcf4e10e457e7
Median time: 1728964776
Difficulty: 4.656542373906925e-10
Confirmations: 203
Chainwork: 0000000000000000000000000000000000000000000000000000000000000ff4
Bits: 207fffff