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.

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Enter a block height, e.g. 123, or the start of a bitcoin address, e.g. mxMfLjAez

Height: 2524
Hash: 7a7ab3a12b18de3273ee44aef6b012b9fe09ae67ee4d261e259d35cce842cd30
Previous block: 76650165922f57c97f20a1c9f375bc106efcfebc03398277536b5a4ef65834f3
Next block: 3f0b984510f4aa81ba958b70dc424b9356a6c66b5ab34ff1e9e891b2b238550b
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847307
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 071b283d0ddde1a6dc53d549b86fc120fa42002674b0f2945d1f4a9caf6f52e8
Median time: 1743847306
Difficulty: 4.656542373906925e-10
Confirmations: 119
Chainwork: 00000000000000000000000000000000000000000000000000000000000013ba
Bits: 207fffff