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: 2354
Hash: 51a9dd4d7b6d8f3ff42f6c4d901906dd6ca15a135deea81a3b3bde57c1208b90
Previous block: 0fa56507761ce97cd40d40602ee252bd286318634a41a2678754fc4c22bd16cb
Next block: 04fb2a6720d8a8cb093ccad34219d3d36bd4edb8b630fa6a2df79a35a5a81ccc
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847279
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 92344dbd2ccfc25e62edd89c8ad906e37c20900d9ce67cee19b195809d478def
Median time: 1743847278
Difficulty: 4.656542373906925e-10
Confirmations: 289
Chainwork: 0000000000000000000000000000000000000000000000000000000000001266
Bits: 207fffff