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: 1357
Hash: 45d7ec82c9de1f0ff5db0a91bec7cd9df49362119398595073697199b0de2007
Previous block: 689447c96c83c0a4906ed6c972ada8fb5a45b8181efdd2781130f13435749572
Next block: 2a320126cb852db6eb4a9ffd75905c368d89f41495f89178c79553929c2c5317
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697634
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: f5f21b5532fd0777564a0121963d85bb1b9c1953bcff53883e2b386185f2c033
Median time: 1718697633
Difficulty: 4.656542373906925e-10
Confirmations: 887
Chainwork: 0000000000000000000000000000000000000000000000000000000000000a9c
Bits: 207fffff