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: 335
Hash: 235fb2df2a79ff0a116b58873feead9eb935e9b7f70c2ce9a36ea42594cc5e9a
Previous block: 7e189836b60db633524d0129add76eedd7ffda5331856baec83b03b8589ad29a
Next block: 291965b381599c561078bc4ba7100026cd186a9c2af34680795cc3132ca2e49f
Weight: 872
Versionhex: 30000003
Version: 805306371
Transactions:
Time: 1701597923
Stripped size: 218
Size: 218
Nonce: 0
Merkle root: ff78216a36ae77f90ba340e3b838467b867652bc036dfd8820848c09be2115c7
Median time: 1701597922
Difficulty: 4.656542373906925e-10
Confirmations: 1909
Chainwork: 00000000000000000000000000000000000000000000000000000000000002a0
Bits: 207fffff