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: 2410
Hash: 52a0536a903f10b793bca75b13ba26105b0e046081c6920f54af76a5b889de02
Previous block: 7bde3470f9524ca6a26718fb8bed0e22ea330a82b52e5005504316eebcd2689f
Next block: 67fbedfcdd6799acc3cb6b5cec858caabdc703f3be524843fe14858ea6171ca1
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847288
Stripped size: 218
Size: 254
Nonce: 3
Merkle root: 8497ee51a3efb192afcd73cec2fd85a78e4aa7f0371f1ad2f24009b8293dbb57
Median time: 1743847287
Difficulty: 4.656542373906925e-10
Confirmations: 233
Chainwork: 00000000000000000000000000000000000000000000000000000000000012d6
Bits: 207fffff