It's not linked on Scarce.City yet. While we'll likely link it eventually, it's meant to be an independent site.

Scarce City for Fine Bitcoin Goods
SatsCrap for eveything else (although there's nothing stopping Bitcoin art/collectibles from being listed there as well)

Hey, this is Chris from the Scarce City team.

We've just launched a bunch of features on our new marketplace SatsCrap.com that make it as easy as possible to sell any legal physical goods for bitcoin.

Self-Serve Auctions

• Create your listing in less than 60 seconds with AI generated titles+descriptions and refundable bitcoin listing deposits
• Micro-BTC refundable deposits keep bidders accountable while requiring minimal info
• No curation and set your desired starting price
• No registration required
• Your 7 day auction goes live at the next 3pm EST timestamp

Fiat Purchases

• Buyers can pay in onchain or Lightning bitcoin as well as their preferred fiat method (credit card, Afterpay, Cash App, Klarna)
• No matter how the buyer pays, sellers receive proceeds in bitcoin

In celebration of the fresh functionality, we're taking zero commission fees on any listings created through the month of February.

Check out all bargains at SatsCrap.com and smash Sell Your Crap to start listing.

Any feedback is greatly appreciated.

Hey all, Chris from Scarce City here.

I appreciate the comments. These types of threads help us find opportunities for improvement. I'll address some of the points of confusion and concerns, as well share some solutions we're implementing.

First, regarding the United Nodes auction -- the piece is not in our possession and it was fully communicated to the seller that it was a No Reserve auction. For these types of sales, we've required sellers to have a strong Twitter/BT reputation and relied on them to act in the interest of maintaining their reputation to deliver the goods according to auction terms. I'm still hopeful that LitLit will act in the interest of their reputation and come through on the sale but the doubt raised has made it clear that our reputation system is not enough.

Effective immediately, sellers with reputations that are at all questionable will be required to deposit BTC collateral with their auctions or escrow (with MJ). They'll forfeit their collateral if they do not deliver the goods and escrowed items will be delivered to the buyer, according to auction terms.

Re starting reserve prices, we allow them in some circumstances -- for artists who are voted into our artist group (by other artists), for events where the event organizer is curating the auctions, and for some multi-edition auctions. Otherwise, our auctions are No Reserve. The reason is we put a ton of work into curating auctions, crafting auction pages, and promoting EVERY auction across our newsletter, twitter, and telegram. It only makes sense for us to put in that work if the item sells. Also, through the thousands of auctions we've run, we've seen that No Reserve auction perform better on average and are way more fun to participate in.

That said, we understand that starting reserve prices make sense for some auctions and are building an option for that (outside of Scarce.City). In the meantime, sellers have the option to list items in our marketplace for a fixed price.

Re hidden reserves, I see how they make sense for some other auction platforms but we don't think it's an acceptable bidder experience with our collateral-based auction system. The most common and permissionless way to bid on Scarce City is by depositing a small amount of BTC with your bid (refunded as long as winning bid is paid). Many bidders deposit collateral over Lightning but some pay high fees to deposit onchain. It's a terrible experience to spend sats to bid, not to mention get emotionally involved in the auction, place the highest bid and still not win the auction because there's a hidden reserve. We're open to ideas on how to make it work but so far have not found a good enough solution.

Finally, on the design criticism, we're constantly making improvements and have a long list of improvements to make on our roadmap. Any specific feedback to help us prioritize improvements is always greatly appreciated.

I hope that helps clarify how we're approaching things. Understand that we're a small scrappy team doing our best to build a platform that offers the best experience for buyers and sellers while staying true to Bitcoin values and promoting Bitcoin culture. There are many challenges that don't have solutions, only tradeoffs.

Many thanks to all of you who are patient with us and have supported us along the way.

Chris

Sales tax is only charged for items purchased at in person events at this time.

Buyers are responsible for any import taxes. The sellers are ultimately responsible for declaring the value.

Hi we may have better luck auctioning your coin on scarce.city

Email me if interested chris@scarce.city

We may be able to auction your coins on scarce.city

Email me if interested chris@scarce.city

We may be able to auction your coin on scarce.city

Email me if interested chris@scarce.city

Our COA does require the artist to generate and secure the private key of their creator address. We could technically custody it for them (as Verisart does) but we are a Bitcoin company and strongly believe in self-custody.

The owner providing the transaction ID alone may be a strong enough assurance for prospective buyers. They'll have record of it in both the wallet used to make the transaction and the purchase confirmation email. Signing a message with the owner address private key is the ultimate assurance which can be done with most modern wallets. So really, they just need to maintain access to the wallet.

But yes, in both cases maintaining the COA requires responsibility. Like Bitcoin

No, just the NFC tag which links to the IPFS hash of the COA.

In my mind, the opentimestamps hash serves the same purpose as the authentication mechanisms you've listed.

Please let me know if you see it differently.

Thanks!

Thanks for taking a look!

The COA is hashed and added to the Bitcoin blockchain through opentimestamps.org.

It is not meant for blockchain assets (tokens) but instead physical items such as paintings/sculptures.

The COA is linked (IPFS) in an NFC tag which is attached to the physical work.

Please let me know if you have any other questions or comments!

Hi, I'm developing a Bitcoin-based open standard for Certificates of Authenticity (COA) for physical art.

It's similar to Verisart in that it uses Opentimestamps but the goal is to get closer to true authenticity with a trustless standard that anyone can use to create or verify COAs.

Here's a video demo on the current version: youtu.be/9mZyG7-KVs0

Any criticism and suggestions are greatly appreciated. I have a couple artists ready to use them so I want to make sure they're battle tested.

Thank you