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: 2241
Hash: 282ec204218431ae7aa2c4b4ae4d5f186d0b981021d11505c1e69b3474e2eb83
Previous block: 30629432b0e23caa82cff4f368e9a252eda702c85e0c1b8d705b16dbf376004a
Next block: 7543125e47893c87e07c709482b25c8701d519ee00f7662719bfa0307f78c000
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719480983
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: c7168de7415025c1b516e77c0396b93e18c7cb19537d016b6ea5e376cb771129
Median time: 1719480982
Difficulty: 4.656542373906925e-10
Confirmations: 51
Chainwork: 0000000000000000000000000000000000000000000000000000000000001184
Bits: 207fffff