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. mgqFp9Dhy

Height: 2201
Hash: 26b4fe4dc336a07a4ac59c1f5457972831707a8a1bb8b7f751ab71d6b2f4fa24
Previous block: 3ef6e57f1d7b8f5a0eb722096f52397742e8ef64582425cbfa9d475d008f60f7
Next block: 5a4ee98c19d66e0dbc6cf98ec43c4f168c9de631aa6e9b18ffac2a100bea15f9
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964803
Stripped size: 218
Size: 254
Nonce: 4
Merkle root: 05a802fc83cf08c889b2e8db36b01e688daaa6186bef023f32d36b9aee107a32
Median time: 1728964803
Difficulty: 4.656542373906925e-10
Confirmations: 43
Chainwork: 0000000000000000000000000000000000000000000000000000000000001134
Bits: 207fffff