Very interesting. Maybe we should ask user ranochigo. He could know if this is possible. [I will DM him]

They're saying that the first Inscription on the blockchain is the valuable one. All following Inscriptions/Signatures have less or no value. And the participants accept this. Eg. there are Bitcoin Punks and the same Punks as second Inscription (i2 Punks).

The keys were leaked after that article https://news.bitcoin.com/an-unknown-individual-signed-a-message-associated-with-btc-block-1018-reward-was-minted-16-days-after-satoshi-launched-bitcoin/



This thread "old Bitcoin addresses as 'NFT' on the Bitcoin blockchain" started 2 weeks before Casey Rodarmor inscribed his first picture on the Bitcoin blockchain. We should ask him if he knows this thread.

This signature has been inscribed on the Bitcoin blockchain:


https://twitter.com/LeonidasNFT/status/1666900463856279574

{reserved}

Started a new project ... if you are inscribing on the Bitcoin blockchain and want to take part:

1 pixel jpg (1 x 1 pixel), just different colors


1st inscription of the project:
Inscription 123586 - id 411ab2fbc1f4167ae77bd215fedb1a056901b42a8f0750942dc3725583387d5di0
https://ordinals.com/inscription/411ab2fbc1f4167ae77bd215fedb1a056901b42a8f0750942dc3725583387d5di0
color: black

2nd inscription of the project:
Inscription 123588 - id 7b0b88aa4f568b7f2b3bf1960cfcdbd5f6cd5e4b660d7eba4944d3e2cca1cc2ci0
https://ordinals.com/inscription/7b0b88aa4f568b7f2b3bf1960cfcdbd5f6cd5e4b660d7eba4944d3e2cca1cc2ci0
color: white

...


post your "1 pixel jpg inscription" and the color below 

These addresses were unused which received a specific 'signature chain', they contain some sats to transfer the 'signature chain' to the buyers own address. The items exist only 1/1, so nobody else can buy it after purchase. Only one buyer will have the private keys. I have the private keys too, but it is the same situation like coin-mixer. The mixer has the private keys of the new addresses too.

Yes, I will edit the 1st post that the new owners shouldn't use these addresses for their own transactions.

Now some items on OpenSea: https://opensea.io/collection/signature-chain

The items include the private key of the Bitcoin address for the given 'signature chain' as unlockable content that can only be unlocked and revealed by the new owner of this item.

We are very early. 

reserved

Bitcoin Punks - Marketplace

You can list here your Bitcoin Punk if you want to sell/exchange it or post if you want to buy one.



Bitcoin Punks homepage: https://bitcoinpunks.com/
twitter: https://twitter.com/Bitcoin_Punks_



----------

This thread is self-moderated to be able to delete completed listings. Good luck!


Support this thread: 3BmkDAahdu2p43ifrEPoZn32hFgET7TDpC

Everything testing manually at the moment and it is working. There is no marketplace or explorer so this thread is the only place where one can inform about 'signature chains.' But user nutildah recommends to look at emblem-vault on OpenSea. I was already checking it because of ordinal 'NFTs' on the Bitcoin blockchain and it seems to be the perfect opportunity to exchange 'signature chains.'


I will test emblem-vault a bit and post the results here.

It is an NFT because:

A non-fungible token (NFT) is a unique digital identifier that cannot be copied, substituted, or subdivided, that is recorded in a blockchain, and that is used to certify authenticity and ownership.[1] The ownership of an NFT is recorded in the blockchain and can be transferred by the owner, allowing NFTs to be sold and traded. NFTs can be created by anybody, and require few or no coding skills to create.[2] NFTs typically contain references to digital files such as photos, videos, and audio. (source: Wikipedia - Non-fungible token)

In our case the NFT refers to the previous Bitcoin address.

It is not an altcoin because NFTs are uniquely identifiable assets, they differ from cryptocoins, which are fungible.

But you should consider that 'signature chain' is a new type of NFT. Read the second post to understand how it works.

In Mittweida kann man jetzt Snacks mit Bitcoin bezahlen

"Matthias Hahn (62) ist sichtlich begeistert: "Das ist absolut krass", sagt er. Am Montagmittag war er der erste, der aus dem Snackautomaten in der Werkbank in Mittweida einen Schokoriegel zog. An diesem bezahlt man mit der Kryptowährung Bitcoin. Was kompliziert klingt, funktioniert im Mittweidaer Coworking-Space Werkbank32 ganz einfach.
Das kann man am Montagnachmittag beim Tag der offenen Tür in dem Haus an der Bahnhofstraße 32 erleben. Dort erklärt Tim Käbisch (25), wie das Gerät funktioniert. Der 25-Jährige hatte zuletzt das Projekt "Bitcoin-Snackautomat" am Blockchain Competence Center der Hochschule geleitet. Wer will, kann den Automaten auch gleich selbst testen."

https://www.freiepresse.de/mittelsachsen/mittweida/wir-in-mittweida/kryptofans-aufgepasst-in-mittweida-kann-man-jetzt-snacks-mit-bitcoin-bezahlen-artikel12659216

Der Automat steht hier:
Werkbank32
Bahnhofstraße 32
09648 Mittweida
(etwa 20 km nördlich von Chemnitz)


Gibt es mehr davon im Lande?  

Bitte unten posten.

How did you find this transaction?

Would it be ok if Satoshi spent them   (He's not knowing why the sender did it.)


or .... this one is better .....

Satoshi sent these 4 BTC to himself  

1YAR6opJCfDjBNdn5bV8b5Mcu84tv92fa  216.93331465 BTC

Thanks, edited the 1st post 

I like these NFTs. But the concept is better, bought one, hope that it will work.

Are there other links like twitter, facebook, instagram?

Read the article:
"this approach does not undermine the system security but highlights the importance of using fair random sources during the private key selection."

These guys didn't create their addresses with random sources. The article is about that issue and not about Bitcoin's security.

OP means that these addresses had incoming transactions but not one outgoing transaction. (in this case: no outgoing transaction = unused address)

If you read the blockchain for block 1 (that includes the address above) you will get the transaction 0e3e2357e806b6cdb1f70b54c3a3a17b6714ee1f0e68bebb44a74b1efd512098

raw data:
01000000010000000000000000000000000000000000000000000000000000000000000000fffff fff0704ffff001d0104ffffffff0100f2052a0100000043410496b538e853519c726a2c91e61ec1 1600ae1390813a627c66fb8be7947be63c52da7589379515d4e0a604f8141781e62294721166bf6 21e73a82cbf2342c858eeac00000000

This raw data contains the public key in plain text. So the public keys for the early addresses are known. Because they were "pay-to-pubkey" addresses instead of the later introduced "pay-to-pubkeyhash" addresses.