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: 2034
Hash: 37b066bc9373002744fe5b920a37cc6759743b82c6ecd2dd7aaae9e3a66d1318
Previous block: 5e1e633f990e6a4b0809e7ec691e2f29e9f915951ec242a90d7e4af994f3ff94
Next block: 7cf6a102663843dfe8365304336db91b2328e05333662ed327c00b544c05cb9f
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964776
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: a609d67060a9a67002eaa3e0501d5fa4b9a3823b6f4cf54029cb6d50bd26c21f
Median time: 1728964775
Difficulty: 4.656542373906925e-10
Confirmations: 210
Chainwork: 0000000000000000000000000000000000000000000000000000000000000fe6
Bits: 207fffff