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: 135
Hash: 7c6e02998c4bf017b7a07445828ec92925d2e79117d4f9395ece9a1376cc23d0
Previous block: 257cdf63fd3e1ab9b85422a2225195500bfa9b900d6ac7c920052aac2839b90f
Next block: 57723276ad2201329a809f05230acffb578da52f6f408b96f8b375bde75f1b4b
Weight: 872
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701597890
Stripped size: 218
Size: 218
Nonce: 0
Merkle root: 05962fd5209915d2784e63673cf84289d448a3b65db0c2f45b6ea152f164ddeb
Median time: 1701597889
Difficulty: 4.656542373906925e-10
Confirmations: 2109
Chainwork: 0000000000000000000000000000000000000000000000000000000000000110
Bits: 207fffff