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: 26
Hash: 21043eedd472a22bc30a51694f2f7ef2791cb7cb57bf6deeeb31331bce5b0783
Previous block: 6c39a9ac405465b8c03e1753cbd2b41f24d4fde51d26c6bf78f00fc2b944305e
Next block: 34e69a326d0ea3c60d437d39cbff12167166fc8679a42d840415045be7e70930
Weight: 868
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701597872
Stripped size: 217
Size: 217
Nonce: 0
Merkle root: 8c24e42f73d9fbe8cf49c72761980099b3cc8813bb7d16437e0ccbe927741483
Median time: 1701597871
Difficulty: 4.656542373906925e-10
Confirmations: 2218
Chainwork: 0000000000000000000000000000000000000000000000000000000000000036
Bits: 207fffff