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: 485
Hash: 03f83832d3f3c613c3d51abb709074c6ef797dba03048e794241e74046499fed
Previous block: 7568e1bd3a1ed65c320313e8efa569895c7f4d08de7e6ad5d34fdbf01828e86e
Next block: 2303254e0ec5c02b0f45f133cd7e772d4110ef42b176e2eb734ba7172bbe6bc2
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864224
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 555293c62474e5f0d9d9bb6eb36cec0b8a125764313e02e55ae5bf2b34ed15c0
Median time: 1701864223
Difficulty: 4.656542373906925e-10
Confirmations: 1759
Chainwork: 00000000000000000000000000000000000000000000000000000000000003cc
Bits: 207fffff