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: 920
Hash: 65689bf95ff4b6f374fa75be3bfd048c8ab4e22c1613d5f796ac1fdd9d7e7300
Previous block: 3c88051330ad69f8bc9a6ae0d7ed97fa0267273d943eff77d3f80dd2119f5ebf
Next block: 5079c843ec5f21cbb25f4c30a2bd05f93206fd253070cc2772da63ee30e353f3
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857822
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: b4ddf6ed38d49c02b6952b6ce47d0a60e6d85189d07fa1363db210d88292a26a
Median time: 1707857821
Difficulty: 4.656542373906925e-10
Confirmations: 1324
Chainwork: 0000000000000000000000000000000000000000000000000000000000000732
Bits: 207fffff