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: 901
Hash: 00703fc841adb28d790e6e789f8edab9e87e94d5ab261f51f0bf7c9a92d2531a
Previous block: 7da609a55bab204c5f1ac1a995bea4ec54da363bad99d85769cf78c70274e85e
Next block: 795e0162bcc7e7fdc252441e3006ff7a91a0b02d8570755c838553b47aa81ad3
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857819
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: de7b7910514d873c1f61d7c40a3416604c1e7cea67b679b3fcdd2aac5b754420
Median time: 1707857818
Difficulty: 4.656542373906925e-10
Confirmations: 1343
Chainwork: 000000000000000000000000000000000000000000000000000000000000070c
Bits: 207fffff