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: 2408
Hash: 41a60bae981ad35096a7aef374ed2781dbf9a97b3fdd6d9b5f5c4c26972be2a2
Previous block: 36f35b1f90d63892cdb74b8ffb9b1e97198a460154c6e0d87a9f54f9610f6eab
Next block: 7bde3470f9524ca6a26718fb8bed0e22ea330a82b52e5005504316eebcd2689f
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847288
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 4aaba494264f0090001d8eec89a680636dd6937369bcf868f425ef721ecce0e4
Median time: 1743847287
Difficulty: 4.656542373906925e-10
Confirmations: 235
Chainwork: 00000000000000000000000000000000000000000000000000000000000012d2
Bits: 207fffff