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: 809
Hash: 10edb9a98f4767757103a0ce7aff24c4330592ed5d8dc719ab544adb35fb2c40
Previous block: 0dce52b340df4bcde2c0fcccb84d358da266a24592c2326aa3c062f1162b3a67
Next block: 01f26577d62b4bf017eae07db3d4f7be4dbe9b4457441329b78567739d2427de
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857803
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: cb31e20f6761440cb4af10528f6a740b1383a3a1f9b7ad5f122423b745bb7995
Median time: 1701864277
Difficulty: 4.656542373906925e-10
Confirmations: 1435
Chainwork: 0000000000000000000000000000000000000000000000000000000000000654
Bits: 207fffff