How have hidden premines worked?

[fivebells]

Is it simply that no one involved looks at the blockchain?

Edit: Never mind, found an answer.

[iGotSpots]

There are actually 5 or 6 ways to hide one. Obviously I won't post them here, since very few people are actually capable of it currently (none have been used that I've seen) but the lesson is to use the blockchain to check, not the github

[barwizi]

There are actually 5 or 6 ways to hide one. Obviously I won't post them here, since very few people are actually capable of it currently (none have been used that I've seen) but the lesson is to use the blockchain to check, not the github

+1