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: 1725
Hash: 735e51b187861d54e8848d567e21fdcc9b954ec8fc4455aa0cba982ff808ee58
Previous block: 2c11a70398d650c2d7eba7da2de772d77a14f5a7705de7d1b16274434059a190
Next block: 65da5721ae8c51046666eb925781a640a941a7fc7eed51a9ca32e4e70da66ee6
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159211
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: ddd3561a3c9a4946b2c3217d148f854899259f13d20e26e94be83bc181d3eb12
Median time: 1719159210
Difficulty: 4.656542373906925e-10
Confirmations: 519
Chainwork: 0000000000000000000000000000000000000000000000000000000000000d7c
Bits: 207fffff