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: 1153
Hash: 373dd91d19e9a2a0acbd62b9dadde85db46eff691cf19d164db9bee05c5a9210
Previous block: 0c62ab2cf3249926c0ab4e20c04d11f4c322d25107092b054c15a883379b1959
Next block: 4d30400045323b60447cd872291ae1b7a4f5a55f9819b27ecf48600cb6221f57
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857861
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 40500aac272fc09b3aea39e8720c463bba1df6b1ea528c0281808b48f4ba582b
Median time: 1707857860
Difficulty: 4.656542373906925e-10
Confirmations: 1091
Chainwork: 0000000000000000000000000000000000000000000000000000000000000904
Bits: 207fffff