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: 2242
Hash: 7543125e47893c87e07c709482b25c8701d519ee00f7662719bfa0307f78c000
Previous block: 282ec204218431ae7aa2c4b4ae4d5f186d0b981021d11505c1e69b3474e2eb83
Next block: 0f9404e0954a6fd65b04ad607dfaa609d59406b6fe4cd6579ed6cc77b9568326
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719480983
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: f41e351c49ad7f4e4fde5e1abe3e9d8ccb6b571173aa72afefec69d89bc0fd7e
Median time: 1719480982
Difficulty: 4.656542373906925e-10
Confirmations: 50
Chainwork: 0000000000000000000000000000000000000000000000000000000000001186
Bits: 207fffff