Proof of burn simply means you have provably destroyed coins. The only way to destroy coins in a proven way is to send them to an address which is improbable to have been generated from a private key, and thus can not be spent.
Chancecoin is the first I've seen to use this way to generate their coins. The announcement for Chancecoin can be found here: https://bitcointalk.org/index.php?topic=528023.0
In here, they instruct people can burn bitcoins for a certain period by sending them to 1ChancecoinXXXXXXXXXXXXXXXXXZELUFD. The reason why we believe that this is a burn address and not a vanity address is that all but 6 characters seem to have been predetermined. The way you would find an address like this which you could send coins to is by running a loop.
- Start with 1ChancecoinXXXXXXXXXXXXXXXXXXXXXXX
- Ask bitcoin if that's a valid address
- If it's not valid, increment the last character by one and try again
After a billion or so tries (not too much in terms of 'mining') address 1ChancecoinXXXXXXXXXXXXXXXXXZELUFD is found which passes the validity check. For more info on address validity see: https://bitcointalk.org/index.php?topic=1026.0
This address is very unlikely to have been generated with a private key, or if so, it would show a big weakness in bitcoin and many other security practices. So we assume that the nobody has access to this private key.
2Since you want us to evaluate and explain an external resource for you, could you at least provide a link to it? – Murch – 2014-04-01T12:36:58.610
https://en.bitcoin.it/wiki/Proof_of_burn – tdumidu – 2014-04-01T13:26:40.423
Can someone explain me about this? – tdumidu – 2014-04-01T18:46:08.170
3The purpose of Proof-of-Burn is not to generate coins (as PoW and PoS do), but rather to verifiably destroy them. What for? To "transfer" your crypto-wealth from one coin to another whilst forcing everyone to be honest. The old coins are transferred to an address whence noone could use them, neither original owner nor creator of new coin. – Joe Pineda – 2014-04-02T01:02:57.693