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: 2419
Hash: 6168df01c00ffa81dd2ceb860475f66289ecad398cefc30851cc3c2448d1e9a8
Previous block: 6ae8de1b9c7f2897f50323fab613ee3bc1dd8565d93db3a5d097848f09e74a10
Next block: 532978ad259350c15499cc817e0a3439ca91caf9334137370da966d8f8f8f467
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847290
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 936964ecbe9ba0a75f08a87c4af8f99336595b6e97a1c7efd4783051b5366ca8
Median time: 1743847289
Difficulty: 4.656542373906925e-10
Confirmations: 224
Chainwork: 00000000000000000000000000000000000000000000000000000000000012e8
Bits: 207fffff