Shouldn't the height of genesis block be zero? If I type 0 on Blockcypher, it will return a error:
Code:
Server Error (500)
It seems that Blockcypher put the genesis block on height 1, thus makes the true block#1 inaccesible (unless specify sha256 directly: 00000000839a8e6886ab5951d76f411475428afc90947ee320161bbf18eb6048).
It is usually interpreted as block zero yes. It's just a matter of how these sites index/display it. It looks like Blockcypher is indeed reffering to both the Genesis and the normal first block as Block #1, which indeed looks a bit weird. ( And i doubt that it is done intentionally...)
A better way would indeed be to display it like this,