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: 682
Hash: 2c3c7223609784887f9859bf7c9dffb9617ef021375cbfc9b77f93df087e8673
Previous block: 19b441ffa85fb2c10ac731dd795e68bf2f52568f34d15e3fa14ffd218fd22ebe
Next block: 6b26f186ed446f1bd5049d7fe48485b02003d5c1fb427992c83b2aaf5b36fba8
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864257
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: e53c43c231bb61b50cd23970416adeeb2b784699cf24ce16f91a7a0108d61954
Median time: 1701864256
Difficulty: 4.656542373906925e-10
Confirmations: 1562
Chainwork: 0000000000000000000000000000000000000000000000000000000000000556
Bits: 207fffff