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: 1705
Hash: 34ad2a2f40e5137ff4160f34fb5f0c0a24b0c8db293043e3df21576c3ef0db4f
Previous block: 715aecab5697ca1d2ea6e81a38907fa1606927aa33c4e42b672d2d69238d1785
Next block: 13c3576d4de0b9f06057124ab65f860ec39884cfe93d344011b7de275f4efd8a
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159207
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: 9256a27a92d6fb1aa71a66179203612c0a2db522facf31d7b8d5bb8c87d6b831
Median time: 1719159207
Difficulty: 4.656542373906925e-10
Confirmations: 539
Chainwork: 0000000000000000000000000000000000000000000000000000000000000d54
Bits: 207fffff