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. mkrgsKuFE

Height: 1576
Hash: 1cef757d36584801c52b0f109970c19bbc250ff512033360bbf7ddaf8626cd42
Previous block: 1ecc050942780cd5e435298d709b69ae6f2054666ed8800a0d133e54434959da
Next block: 27256e538de5d8ffb64e3a0c20dd4e8d738b149feb1dccb4bea1beceaae7a5b4
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1708932132
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 0e8c472effbfa0f82a1daabfa95b0efb2e148de27ed313de9d4ebdaa005cba2e
Median time: 1708932131
Difficulty: 4.656542373906925e-10
Confirmations: 33
Chainwork: 0000000000000000000000000000000000000000000000000000000000000c52
Bits: 207fffff