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: 2427
Hash: 5033f3c31d4ad73a1c725122647852efe384c8aa42608b00990cf38925c77599
Previous block: 1366c96dae9c964764c52eb4579c06b5a27060ee634b9e9ec76b8e05ddd582e0
Next block: 44ff95fc1b6904eff953ea96714b0a841cf6dca5885697abe4f9e8f08e1ce8c2
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847291
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: cbf053b41ad0fc1ee8ae8fe2906167935a49d7a5870110c5eae58f3a6abe8899
Median time: 1743847290
Difficulty: 4.656542373906925e-10
Confirmations: 216
Chainwork: 00000000000000000000000000000000000000000000000000000000000012f8
Bits: 207fffff