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: 722
Hash: 16f52bc49e162536802a74c32ea408a3e921db3692c3c38e5eae987b24fb769a
Previous block: 0f95ede96426fe1357aa565ba3af9b7094ba875dc853e7198a37514906ce429b
Next block: 7eab633dbddffa92482679ffe0ad2ea2b97dbb19b06ed6cdf0eb85e96e92f1a7
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864264
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: d6b2dafb3fc6d728e0c2dac966413b5b317ceee1b24d72703ac8a7559258781d
Median time: 1701864263
Difficulty: 4.656542373906925e-10
Confirmations: 1522
Chainwork: 00000000000000000000000000000000000000000000000000000000000005a6
Bits: 207fffff