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: 2541
Hash: 21e000041b29cbf4daa6e598ed9c3427ef2df7d4f349609826b3cf6f426f42c3
Previous block: 6cb8b2f1aed263bd508ba248692c94f72208d64245e91a4e605ab4937a786f88
Next block: 05ba1bb0fb34fdc60331bdf0783be5f5abe6a4774d8c0a714a258bcd7976e8bb
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847310
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: eb866465312ccabeb92e02a1ec8019f44da4e81798771f2fa9034ec514c39c01
Median time: 1743847309
Difficulty: 4.656542373906925e-10
Confirmations: 102
Chainwork: 00000000000000000000000000000000000000000000000000000000000013dc
Bits: 207fffff