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: 582
Hash: 430836aa9fee3ae69be602cb49c5b29eaaa46052aedbd908f5bbcc2a33239acc
Previous block: 2dfb9d0de28ce43035979e480bc056ae9e859e5f92cd87342fe372e410417429
Next block: 1783b7e879c88cd4f481a3e96c254e37bf440add79ac4fadae6bfa70eb0fc001
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864240
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 378fd50d616ff9555d49316eb268114af554ec7597835faa04fe3efeb3a2effb
Median time: 1701864240
Difficulty: 4.656542373906925e-10
Confirmations: 1662
Chainwork: 000000000000000000000000000000000000000000000000000000000000048e
Bits: 207fffff