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: 1448
Hash: 2c1cb30ba2ba7d0039f9dbebd090d5e532fbcd55b4cbba55c0bd52131dcd3fa0
Previous block: 31c04635694a4e4626738d39efbd80da05257d2e6e59113b5a94af194aea35ba
Next block: 0aa42ca4772a5d6bedce68961e02d7272cbd43246fd656966551cdc7c58ad1d7
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697649
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 02550bff8409666478147c69e734b3e3b2dbddaa93209f67f3847628c9f527fa
Median time: 1718697648
Difficulty: 4.656542373906925e-10
Confirmations: 796
Chainwork: 0000000000000000000000000000000000000000000000000000000000000b52
Bits: 207fffff