So, should we burn all those coin who's owners refuse to move their coin kept in an unencrypted hot wallet on an antiquated windows operating system because they're also not secure and could be stolen and dumped on the market?  Where does it end?  And, since when has it become fashionable to control other's stake in the project?  Are "we" becoming that "third party" the project was designed to eliminate?

Exactly. All bitcoins are vulnerable even today, just some more than others. Just look at the history of major bitcoin heists over the years. Sometimes the market takes a temporary tumble due to such heists. The responsibility to secure those bitcoins is solely the responsibility of said owner.

destroying somebodys coins would be the end of the btc. how could you trust this if your coins could just suddenly be burned!

I agree completely first of all im not sure if all that btc vulneralities are real or just fud, and second thing i don't understand is why/how would theymos have the voice to do such thing, he has the "keys" of the forum but respecting to bitcoin all im seeing from him is a pursuit of own interests.

What you're saying is true, many countries issue new paper money and new coins with new designs and colors. The old replaced ones will lose their value by the end of the replacement process, this is done mainly to combat counterfeit and to force those who have stashed moeny in their homes to get it out as that money is taken of circulation causes many economic problems. All that is only possible because the currency is controlled by a single entity: the central bank, and nobody from the common people has a say in it. Here we are talking about a decentralised currency where everyone counts, can't you see the ongoing fight about the blocksize ? a consensus is needed to force a move to a new standard for Bitcoin and a debate is necessary before that can be accomplished.

If an amount is paid to a public key then the public key is shown in the public blockchain for anyone to get/see/use.

A Bitcoin address is the double hashing of the public key.   So BitcoinAddress = hash(hash(PublicKey))

So if you pay to a Bitcoin address what is shown publicly in the blockchain is the Bitcoin address not the public key.

Now theoretically to crack a payment to a public key you would need to reverse only the ECDSA, PublicKey -> PrivateKey

But to crack a payment to a Bitcoin address you would need to reverse SHA and RIPEM and ECDSA

BitcoinAddress -> reverse hash -> reverse hash -> get PublicKey -> PrivateKey

So, you can see that since the hashing algorithms are not vulnerable to QC then payments made to Bitcoin addresses are basically not vulnerable to QC.

BUT

If you make a payment from a Bitcoin address to another Bitcoin address and have the change come back to the original address then the public key for the original address is now exposed.  So, just do not do that - always send the change back to a brand new address.

Modern deterministic wallets always send the change back to a new address.  The new blockchain.info wallet is a deterministic wallet and does this correctly.

However the very popular old blockchain.info wallet (and others like it) always sent the change back to the original address unless you explicitly told it not to so there are a lot of transactions that did expose the public key, those would also be vulnerable to QC attack.

This is my understanding as well and is the reason why Theymos was originally talking about old non-moved coins.
A majority of the early mined coins are still sitting unmoved in publickeys.

Does anyone know when and in what version did they add bitcoin addresses to Bitcoin?

No,that won't be the end of BTC but the end of those coins only.Maybe the can have an impact on the older coins.Coins should be burned because logically no one knows who owns them and anybody can pull claims they do.I think theymos makes sense here.

No I don't.I'm just a random user fascinated by 1's and 0's.At times I'm good at solving the Ciphers and encrypting my porn links with SHA and MD5. 

I don't know maybe Shit Posting ?

OK, I started it and I apologize.

So, can you explain what you meant by this?


That is true for all Bitcoins.

No, the only person who can claim them is the person with the private key.  Nobody else can claim them.