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.

home    blocks

Enter a block height, e.g. 123, or the start of a bitcoin address, e.g. mxMfLjAez

Height: 588
Hash: 67312e6fd4614c4b75881b247260b99aaa745797aff5ee297dc85fdae101c985
Previous block: 7643ef992b4d365a180a4564ed79ed0f4ba00c707472e992e55b0a1ff5cd59b4
Next block: 1877bada0220441703e7df6e05504dc05e1982e5b85e1ad638f56d95f86e6b8f
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864241
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: e945185193669fce6c7b00dfa88918559891fc5216a000335117ebfc9e050c9f
Median time: 1701864241
Difficulty: 4.656542373906925e-10
Confirmations: 1656
Chainwork: 000000000000000000000000000000000000000000000000000000000000049a
Bits: 207fffff