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: 776
Hash: 17337cf82e1a8c75d5e022f83c238434f2b9ba1f6b05af277cc22abad70a0374
Previous block: 2c10aad15f3849d5490fedd7cd52dcdcd05a1dd2a4d69ebc964d7e99fd627759
Next block: 04599d5553491234a36947c25ad994159ece7ca9e3c6554670d8cea20daa3a7b
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864273
Stripped size: 218
Size: 254
Nonce: 5
Merkle root: 540a20e7fc3a7514d075de897f578d297e8b4d902c03f16f2d8a6376b346100e
Median time: 1701864272
Difficulty: 4.656542373906925e-10
Confirmations: 1468
Chainwork: 0000000000000000000000000000000000000000000000000000000000000612
Bits: 207fffff