Is this Satoshi? Did he sign that message?

[mynonce]

In this thread "Who has/had the oldest mined Bitcoin?" https://bitcointalk.org/index.php?topic=5421158.0 someone posted that signature:

-----BEGIN BITCOIN SIGNED MESSAGE-----
1E9YwDtYf9R29ekNAfbV7MvB4LNv7v3fGa
-----BEGIN SIGNATURE-----
1NChfewU45oy7Dgn51HwkBFSixaTnyakfj
HCsBcgB+Wcm8kOGMH8IpNeg0H4gjCrlqwDf/GlSXphZGBYxm0QkKEPhh9DTJRp2IDNUhVr0FhP9qCqo2W0recNM=
-----END BITCOIN SIGNED MESSAGE-----

The message is an unused Bitcoin address. But the signer's address was used in January 2009 (~2 weeks after Bitcoin started).

The message contains an unused address. However the signature verifies against pubkey used in 1NChfewU45oy7Dgn51HwkBFSixaTnyakfj which is a used address that received reward for block 1018.

As signatures don't have timestamps, it is possible that this signature was created back then. I searched the net the whole day, couldn't find an answer. I know someone posted here on bitcointalk years ago, that he mined block ~2000-3000 and that was the oldest mined block mentioned here.

The signature above was created with an older key (address was used in January 2009). Could it be Satoshi? Did he sign that message?

[gmaxwell]

That message signing protocol wasn't invented back then so it couldn't have been signed then.

Many old keys have been sold or leaked, particularly once they've become worthless.  There have been numerous threads on BCT offering to buy old keys.  That address was swept in 2011, somewhat after signmessage was created.

I wouldn't make a substantial bet on the author of the signmessage being the miner of the block.

Invoking "satoshi" is just clickbait, shame on you.

[mynonce]

Many old keys have been sold or leaked, particularly once they've become worthless.

Yes, there are threads selling old addresses, especially 2013-2014 addresses.
People buying old Bitcoin wallet addresses https://bitcointalk.org/index.php?topic=2893269.0
Wanting To Buy Old Bitcoin Addresses https://bitcointalk.org/index.php?topic=2433836.0
Looking to buy old and empty Bitcoin wallet address'es https://bitcointalk.org/index.php?topic=5168025.0
Selling old bitcoin wallet https://bitcointalk.org/index.php?topic=5123987.0
Buying old BTC, LTC and DOGE wallets! https://bitcointalk.org/index.php?topic=1177746.0

But no 2009-2010 addresses found.

And this address is not old, it is veryveryold. How many people mined 2 weeks after Bitcoin was released? I expected that Satoshi had the most mined blocks, so it would be very likely that it is Satoshi. Do you think that this miner sold his address now, 13 years later? And I don't think that Satoshi would sell addresses.

[OneSignature]

This is the oldest signature    (please post if you have a signature with an older address)

-----BEGIN BITCOIN SIGNED MESSAGE-----
1E9YwDtYf9R29ekNAfbV7MvB4LNv7v3fGa
-----BEGIN SIGNATURE-----
1NChfewU45oy7Dgn51HwkBFSixaTnyakfj
HCsBcgB+Wcm8kOGMH8IpNeg0H4gjCrlqwDf/GlSXphZGBYxm0QkKEPhh9DTJRp2IDNUhVr0FhP9qCqo2W0recNM=
-----END BITCOIN SIGNED MESSAGE-----

signature chain 

-----BEGIN BITCOIN SIGNED MESSAGE-----
1KN59gRxD8G9g9smSLTFt9aSgWxYxTzFL7
-----BEGIN SIGNATURE-----
1E9YwDtYf9R29ekNAfbV7MvB4LNv7v3fGa
HwvtQmiREYIyZeI9uohqr82d9eiwtcBgbhG5+VR7+ouEDOTgd6EYvcgNQVELLVJnQbYhN6SSv1xPtQ8SmIa10+U=
-----END BITCOIN SIGNED MESSAGE-----

[casinotester0001]

That message signing protocol wasn't invented back then so it couldn't have been signed then.

That means somebody still has the private key and can sign messages. The post above proves that too. But it is amazing that it is a January-2009 address/key. If someone can post a signature with an old key (block 1 - 2000) that's great. I don't think that the address/key was sold/bought because there's no reason for these first miners to do it.

[AncientAddressKeeper]

Many old keys have been sold or leaked, particularly once they've become worthless.

Message:
who sells for 1,000 $ their old empty address (block 1 - 2000)?
validity: 29/Nov/2022 - 01/Dec/2022 0000 UTC

Address:
1FxoVMjdp6ey3wzU7E9ddrFjYhLwZm3QWk

Signature:
IJ6Mypx8nYHOl1CLFKCiLGjANS3L1PuJaVVkS0ydxSh0a+K2pK7RsDockbbeyNlWWdly6SzIOXXKbrBjbRVuvyA=

[Edwardard]

Message:
who sells for 1,000 $ their old empty address

Maybe they were not interested anymore and wanted to get few bucks by selling it? And you would already know that some degens here do buy worthless nfts for millions of dollars so one of them must have also bought the old address for their own fun, so they can troll others they are the brother/friend of satoshi lol..

Message:
who sells for 1,000 $ their old empty address (block 1 - 2000)?
validity: 29/Nov/2022 - 01/Dec/2022 0000 UTC

Address:
1FxoVMjdp6ey3wzU7E9ddrFjYhLwZm3QWk

Signature:
IJ6Mypx8nYHOl1CLFKCiLGjANS3L1PuJaVVkS0ydxSh0a+K2pK7RsDockbbeyNlWWdly6SzIOXXKbrBjbRVuvyA=

Signature verified! Your wallet got 0.1 BTC final balance,  Are you selling your keys too? (just joking ,lmao)

[gmaxwell]

And this address is not old, it is veryveryold. How many people mined 2 weeks after Bitcoin was released? I expected that Satoshi had the most mined blocks, so it would be very likely that it is Satoshi. Do you think that this miner sold his address now, 13 years later? And I don't think that Satoshi would sell addresses.

Many people.  But most early bitcoiners aren't out shouting from the roofs and courting inviting kidnappers or frivolous legal attacks.  Most people with access to very old keys aren't blowing that access on silly Bitcoin talk bragging threads.  Just thinking anything very earlier in Bitcoin is related to Satoshi is a profound failure of both imagination and research.

[LoyceV]

I don't think that the address/key was sold/bought because there's no reason for these first miners to do it.

Not all early miners are rich by now, so if you hold some old (and by now useless) private keys, an offer could be attractive.
For the buyers, I always assume it has to do with taxes. "Proving" you owned Bitcoins a long time ago, and your current riches really came from capital gains and not crime. Or just bragging rights, but it seems like cheating if you bought the empty address.

Message:
who sells for 1,000 $ their old empty address (block 1 - 2000)?
validity: 29/Nov/2022 - 01/Dec/2022 0000 UTC

Address:
1FxoVMjdp6ey3wzU7E9ddrFjYhLwZm3QWk

Signature:
IJ6Mypx8nYHOl1CLFKCiLGjANS3L1PuJaVVkS0ydxSh0a+K2pK7RsDockbbeyNlWWdly6SzIOXXKbrBjbRVuvyA=

That's not an old address. Are you using this thread for advertising? If so, you should post in Digital Goods.

[mynonce]

Message:
who sells for 1,000 $ their old empty address (block 1 - 2000)?
validity: 29/Nov/2022 - 01/Dec/2022 0000 UTC

Address:
1FxoVMjdp6ey3wzU7E9ddrFjYhLwZm3QWk

Signature:
IJ6Mypx8nYHOl1CLFKCiLGjANS3L1PuJaVVkS0ydxSh0a+K2pK7RsDockbbeyNlWWdly6SzIOXXKbrBjbRVuvyA=

That's not an old address. Are you using this thread for advertising? If so, you should post in Digital Goods.

Maybe it's just to show here that nobody will answer and sell a very old address/key.

5 years ago someone wanted to buy old addresses/keys (older than 2015) and got offers but none from 2009-2010:

Wanting To Buy Old Bitcoin Addresses ( $5 Per Address)

Must be made before 2015. Doesn't need any balance in it.
Paying $5 per address can pay through btc/eth/paypal
I'm also open to using escrow if you'd like.
I'm a collector of old btc addresses

[Lucius]

For the buyers, I always assume it has to do with taxes. "Proving" you owned Bitcoins a long time ago, and your current riches really came from capital gains and not crime. Or just bragging rights, but it seems like cheating if you bought the empty address.

That part about taxes is not very logical to me, unless the tax office is very inexperienced and naive to believe such a story. If I sign a message from a BTC address that is, say, from 2012 and show it as proof to my tax office, if someone there is intelligent, they will look for a history of transactions that will connect the sold BTC with that address - or they will ask me to transfer part of the funds to that address. That would not be very smart, because those who sell such old private keys surely try to sell the same key more than once, which can put the owners in very unpleasant situations.

[ColorlessK]

Guys did seriously no one notice that the guy you're talking about went and signed yet another message within this thread?

This is the oldest signature    (please post if you have a signature with an older address)

-----BEGIN BITCOIN SIGNED MESSAGE-----
1E9YwDtYf9R29ekNAfbV7MvB4LNv7v3fGa
-----BEGIN SIGNATURE-----
1NChfewU45oy7Dgn51HwkBFSixaTnyakfj
HCsBcgB+Wcm8kOGMH8IpNeg0H4gjCrlqwDf/GlSXphZGBYxm0QkKEPhh9DTJRp2IDNUhVr0FhP9qCqo2W0recNM=
-----END BITCOIN SIGNED MESSAGE-----

signature chain 

-----BEGIN BITCOIN SIGNED MESSAGE-----
1KN59gRxD8G9g9smSLTFt9aSgWxYxTzFL7
-----BEGIN SIGNATURE-----
1E9YwDtYf9R29ekNAfbV7MvB4LNv7v3fGa
HwvtQmiREYIyZeI9uohqr82d9eiwtcBgbhG5+VR7+ouEDOTgd6EYvcgNQVELLVJnQbYhN6SSv1xPtQ8SmIa10+U=
-----END BITCOIN SIGNED MESSAGE-----

[odolvlobo]

Guys did seriously no one notice that the guy you're talking about went and signed yet another message within this thread?

I noticed. I don't know what the significance is, though.

It doesn't prove much except that OneSignature was able to obtain (or create) two signed messages, and that the signer of the first message was aware of the address used to sign the second.

It would not be unreasonable to assume that OneSignature mined block 1018 (as well as many others) unless something important is at stake, but that does not make them Satoshi.

[mynonce]

It doesn't prove much except that OneSignature was able to obtain (or create) two signed messages, and that the signer of the first message was aware of the address used to sign the second.

Yes, I didn't get that too. But read this thread: Who has/had the oldest mined Bitcoin? https://bitcointalk.org/index.php?topic=5421158.0 ... it's getting interesting 

[casinotester0001]

Invoking "satoshi" is just clickbait

I am not sure.

This is the oldest signature    (please post if you have a signature with an older address)

-----BEGIN BITCOIN SIGNED MESSAGE-----
1E9YwDtYf9R29ekNAfbV7MvB4LNv7v3fGa
-----BEGIN SIGNATURE-----
1NChfewU45oy7Dgn51HwkBFSixaTnyakfj
HCsBcgB+Wcm8kOGMH8IpNeg0H4gjCrlqwDf/GlSXphZGBYxm0QkKEPhh9DTJRp2IDNUhVr0FhP9qCqo2W0recNM=
-----END BITCOIN SIGNED MESSAGE-----

Maybe true and nobody else can sign with a key of an older address. This would be true if they own all older keys.

[bkelly13]

Many old keys have been sold or leaked, particularly once they've become worthless.

Yes, there are threads selling old addresses, especially 2013-2014 addresses.
snip

Why would anyone want to buy a bitcoin address?

If I have the private key, I can empty the account before giving it to someone.  If I don't, I cannot do anything with it but look at its transaction history.
Edit:  And send coins there.

[casinotester0001]

Why would anyone want to buy a bitcoin address?

For example to claim other coins.

For Transaction History or using for claim another coin. If i remember correctly, they buying address and signed message it to claim free CLAM coin in the past, so i think its work like that too now.

But in our case here, it has nothing to do with claims. This pivate key that has been used to sign that massage is one of the oldest, maybe the oldest that exist.

[LoyceV]

For the buyers, I always assume it has to do with taxes. "Proving" you owned Bitcoins a long time ago, and your current riches really came from capital gains and not crime. Or just bragging rights, but it seems like cheating if you bought the empty address.

That part about taxes is not very logical to me

It's not perfect, but I don't have a better explanation either.

unless the tax office is very inexperienced and naive to believe such a story. If I sign a message from a BTC address that is, say, from 2012 and show it as proof to my tax office, if someone there is intelligent, they will look for a history of transactions that will connect the sold BTC with that address

"Well, this is how the story went: I sold it for Monero back in 2014, and recently bought Bitcoin again. That guy who bought the address on Bitcointalk isn't me, I'm the one who sold it. After all, that's not illegal, right?".....
If this story works? Who knows. But it sounds better than: "Well, you're right, I'm a hardened criminal who belongs in jail".....

[slaman29]

Looks like I am one of those who fell for the clickbait 

For the buyers, I always assume it has to do with taxes. "Proving" you owned Bitcoins a long time ago, and your current riches really came from capital gains and not crime. Or just bragging rights, but it seems like cheating if you bought the empty address.

That part about taxes is not very logical to me[/quote]

This finally makes sense to me as I was wondering why anyone would want to buy a wallet they can't use other than to sign messages or stupidly keep funds the original owner can access.

I don't know if proving it came from capital gains will require this kind of proof though, most bankers will still ask for screenshots of transactions from your email or exchange in those dates, not signing. I say this from exchange requests asking to show where it came from.

[casinotester0001]

It's not perfect, but I don't have a better explanation either.

Yes, could be. But in this case we have a very old address, maybe the oldest. LoyceV, you are an experienced bitcointalk member. What was the oldest signature you've seen?