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: 1356
Hash: 689447c96c83c0a4906ed6c972ada8fb5a45b8181efdd2781130f13435749572
Previous block: 2f86cc3c19b64825ac295d0da406eb33395ec9bfae20c52ba377dba5219126f2
Next block: 45d7ec82c9de1f0ff5db0a91bec7cd9df49362119398595073697199b0de2007
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697633
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 4158887218b010f62d0661b68c0afd1ac21ada93e287dce4e6fb09edb340ef91
Median time: 1718697633
Difficulty: 4.656542373906925e-10
Confirmations: 888
Chainwork: 0000000000000000000000000000000000000000000000000000000000000a9a
Bits: 207fffff