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: 918
Hash: 6272143e0383771870c666cc14cdc6ac101425fad7c0c96e1c665c505500a604
Previous block: 7588a0a7b1268f0cecf58b8e8b081abebcfecb952677c06a2c097c9ea5709612
Next block: 3c88051330ad69f8bc9a6ae0d7ed97fa0267273d943eff77d3f80dd2119f5ebf
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857821
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: a35bd010c75d912bea6f34ede8f2e6834dd4333b758abe22881c235dcec3e27c
Median time: 1707857821
Difficulty: 4.656542373906925e-10
Confirmations: 1326
Chainwork: 000000000000000000000000000000000000000000000000000000000000072e
Bits: 207fffff