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: 1525
Hash: 6a0dc9fe58e9e1cc64a549d860e454a18179721889eb9f3b8e03a704836d8034
Previous block: 38c844d4414ab3fb7f95bd5a055497a10d8090ad61fa5224f5035f006c431c78
Next block: 50ccc388c787f5dbdac1f182ea0767469e8f6d8c79258ccdebb4fba91ada63bf
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697662
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 6eddda1566664c97faa1b09908ba3218eec6c956d23b64924f9734d9bf2402e6
Median time: 1718697661
Difficulty: 4.656542373906925e-10
Confirmations: 719
Chainwork: 0000000000000000000000000000000000000000000000000000000000000bec
Bits: 207fffff