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. mkrgsKuFE

Height: 1568
Hash: 159a3b7dcf04b2c86a5406957c692bbae91d389d27f04632c95a4b4fbc502037
Previous block: 6ce2cfac9fe6b61edf557bdd3f420dd2e7794c688636cdb5112a9f57eb94a95c
Next block: 668c86455c4ace8e0606f0198e2f7ac810df062b6f2c54b930c68dcb0108e20c
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1708932131
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: f41e5c9687932b73a7c17240d3527bce516511b5489919c98e03d442b3626335
Median time: 1708932130
Difficulty: 4.656542373906925e-10
Confirmations: 41
Chainwork: 0000000000000000000000000000000000000000000000000000000000000c42
Bits: 207fffff