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: 1807
Hash: 2d786cc27815a4e0f6231169f1693d2f6c59647ee114e1fa0d61d7368a6dbb19
Previous block: 6a80fba197d35e6162900829a56d8bea214be149f5d1875ca88e7d2b2d060bb6
Next block: 46379c613b28adb0c5529d60164cd36c83703ee888bf92c98a1726a5c054abac
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159224
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: cdcf94ce36e85a520aa4cdfe002d6852bf6ec07f9f078565c97ce4f642ed5744
Median time: 1719159224
Difficulty: 4.656542373906925e-10
Confirmations: 437
Chainwork: 0000000000000000000000000000000000000000000000000000000000000e20
Bits: 207fffff