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: 1388
Hash: 6c6778075cfb838c3a8507c2e1cb1eee3929266be337ee6fdc7d591cbf44196c
Previous block: 3261fc178e3d2828efd15ca483a7bfaeb916b45cc266503576102a4cf9ad1d17
Next block: 50360907cf96476e9a41047480790e7a0644335d2004dd217695fb32c60fccfa
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697639
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 31d70a3e4cdb50522272d81e25a622244d0cfe2d43f5ad365d3f3148156b5a48
Median time: 1718697638
Difficulty: 4.656542373906925e-10
Confirmations: 856
Chainwork: 0000000000000000000000000000000000000000000000000000000000000ada
Bits: 207fffff