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: 2294
Hash: 74322f5c06c6c0b1609749f6608d7c892bf0eeb10ae4ae01701ac7ad97b295fe
Previous block: 3a1913ce5adf3ef45c2473592c2ece592abe8d0a0b46211431d98048fda74786
Next block: 4a9fa3a8b69de5df5f6e51febe1dbac7511f9c29f5a2b7d47fa3f8e302c35c2b
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847269
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: ad4586817880e44b14ba0adb00bfd8e7637a1107e9c2df9df10d0a6b563b9af6
Median time: 1743847268
Difficulty: 4.656542373906925e-10
Confirmations: 349
Chainwork: 00000000000000000000000000000000000000000000000000000000000011ee
Bits: 207fffff