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: 1164
Hash: 192566ca1198019963d0db67de337a4ace4e27a63f191b2f14e250703d5e1782
Previous block: 113998a2918fbb0426fc1ca4b3c5bf828ab78da18bb1ca20e742ce7ae6d83a49
Next block: 3c06df83173740e75a5982028eef0c138f0325090ea3105b90de0d11348977d8
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857862
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: ad1719845d36b62f2b1b02b15cadd755df21df9a10cce3872cb595bda4f6a58c
Median time: 1707857862
Difficulty: 4.656542373906925e-10
Confirmations: 1080
Chainwork: 000000000000000000000000000000000000000000000000000000000000091a
Bits: 207fffff