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: 2606
Hash: 6aba59787bb9fc65d4012b770b6a5f7312d9ff31998cfc8c3955652b57f18875
Previous block: 6d4c41419861e18deaef544efb10af070510fbbcc75eeaadc865414bd3f0acc4
Next block: 11108d67f944a784c2bbac09a554b1694dc620eba252f0f203b7702520b2f9e8
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847321
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 4fa0fe09a2cf33a3ccd02716b292ce53ccdae00787b65bf4e394b3e6be903e83
Median time: 1743847320
Difficulty: 4.656542373906925e-10
Confirmations: 37
Chainwork: 000000000000000000000000000000000000000000000000000000000000145e
Bits: 207fffff