2021年如何在网上卖艺术品:区块链NFTs和稀有数字商品的初学者指南。

Quantstamp Labs
March 10, 2021
March 15, 2021
So you heard about this crypto stuff but you’re a struggling artist? Well, let’s do the 0x to 100 and get you started today! 

This beginner level tutorial will show you how to use a crypto wallet and sell your art. Its focus will be on what is most important to you as a blockchain artist selling NFTs, or Non-fungible Tokens—the industry term for rare digital goods. We’ll be using the Ethereum platform as it is the most well known for buying and selling NFTs.



First things first, you’ll need a wallet to manage your crypto-based assets.

First things first, you’ll need a wallet to manage your crypto-based assets. While there are many wallets to explore, Metamask—a Google Chrome extension—is very well trusted and will do everything you need. Once installed, go through the prompts and take extra care in writing down your seed-phrase and password and storing it in a safe place.

Warning: do not lose your seed-phrase! There is no “lost password” function and you will lose everything if you get locked out.

Once set up, you will need to have some Ether, Ethereum’s native currency, in your wallet to interact with the network. Make sure to find a reputable place that lets you transfer Ether (ETH) to your MetaMask wallet. Ethereum.org has a great tutorial for this. Just like running your car, Ether is used to power your interactions including interactions on NFT marketplaces: this is referred to as “paying for gas”. It’s important to note that marketplaces may take a small fee in ETH, but most gas is used to secure transactions on Ethereum.

Gas can get expensive when Ethereum is very active, so it is recommended to always have a bunch of ETH in your wallet. Don’t worry, although prices change over time, wallets calculate gas fees automatically at checkout—managing this step gets easier with practice.  

When sending transactions between your wallets, always check the address you are sending to is identical to the address you actually want to send to. Most scams happen when users send to addresses they don’t recognize, especially with DMs from seemingly known people.
Having issues with your MetaMask wallet? Look through this FAQ for some help.



Ok, so you have MetaMask with Ether and you’re ready to mint some NFTs, right? Great! Let’s look at a few of the growing number of options. 

The Basics

NFT marketplaces generally operate similar to Ebay; when you mint an ERC721—the token standard—you can create perpetual royalties for the original creator with secondary market sales, depending on the platform used. In other words, artists always get a cut—always. ERC721 tokens as a concept was popularized by Cryptopunks, later used as inspiration for the token standard and then shown to be successful with CryptoKitties. Anything that can use the properties of non-fungible assets can be seen as an NFT, meaning that any digital good, art included is an NFT. They are non-fungible because unlike the Dogecoin saying “1 Doge=1 Doge,” 1 Cryptopunk does NOT equal 1 different Cryptopunk.

OpenSea

OpenSea is the largest NFT marketplace, and because NFTs are generally interoperable, most NFTs can be bought and sold there. It’s easiest to think of OpenSea as the department store of NFTs—it organizes catalogues of works by collection and offers more than just art. You can find everything from virtual land for various VR metaverses to Ethereum domain names. 

The process to mint NFTs is similar across platforms. If you can mint on OpenSea, you can likely mint anywhere. 

Initial Setup

Make sure you are signed in with MetaMask. Hover over the top left circle/profile drop down and click “My Profile”. From here, click “Sign In” under the large MetaMask fox icon, and you should see a drop down from your MetaMask extension asking to connect. Follow the prompts until signed in. Now, click “Create” in the top left actions bar. The page should reload and under “Create a New Collection,” click the blue “Create” button. From here, you will upload a brand logo and fill in some info to create your collection. Once you have a new collection started, you can hit the blue “Add New Item”.

Setting Up Your Digital Good

This is the part where you actually mint an NFT. Upload your image, video file or GIF to a maximum of 100 MB. Fill in the required info and click the blue “Create” button. For this tutorial, don’t worry too much about the various settings. It’s important to note you can distinguish between various traits or rarity of items etc. People have even experimented with the unlockable content that gives the user a physical item tied to the digital ownership of it. Now MetaMask should open asking for you to sign. Once signed, you can place the NFT for sale. 

Selling Your NFT

Placing an NFT up for sale will require some ETH—please scroll back up to the beginning of this post if you forget how to acquire Ethereum’s native currency. Clicking the blue “Sell” button will bring you to your auction setup page. You have three main options: Highest Bid, Set Price and Bundle.

Highest Bid: If you think your project can gain a lot of interest, you can sell your digital goods to the highest bidder over a set time with “Highest Bid.” If this is part of a collection, it could help to set a desired price floor for the rest of the items in the collection. The risk with this approach is that the floor for the collection may not get met if the prized items do not sell; the upside is that one highly-bid item could drive the value of other items in your collection. 

Set Price: Using “Set Price” will let you sell the rare digital goods at a given price or greater with an optional setting that lets you decrease the item’s price over time, if there is minimal to no bidding. 

Bundle: Using “Bundle” lets you sell multiple items as a group with a specific price, with some optional settings similar to “Set Price”. 

All selling types let you set an auction expiry date where the item is moved off the market. When you are ready, click the blue “Post Your Listing” button and look for MetaMask to drop down. Assuming you have enough gas in your MetaMask wallet, you will then click “Confirm” and follow the prompts. The price to mint NFTs will change depending on the settings you choose and the price of gas at the time. Don’t have enough gas? Click “Reject” in MetaMask and go grab some ETH! 

Minting and Listing

Once the minting process has started, you need to wait for the transaction to be posted to the blockchain. This can take a few minutes, so you can check your MetaMask under activity for recent transactions or even watch them on Etherscan. Keep an eye on your MetaMask for any extra prompts OpenSea may need from you like signing etc. Lastly, OpenSea will ask you to add your email so you can be notified when your rare digital goods have any activity from buyers! You’ll need to again sign a free meta-transaction in MetaMask, and confirm your email address to complete this last step. For more information, check out their FAQ.

Congratulations, you have successfully minted an NFT! Moreover, you now have the skills needed to interact with the Ethereum blockchain!

Let’s take a quick look at some other marketplaces. In fact, you may have even seen these listed as collections in OpenSea. 

A collection on OpenSea may also be it's own marketplace as with superrare.co


SuperRare 

If OpenSea is a department store, SuperRare is a curated art gallery. Some of the most exclusive artists are featured on SuperRare. Built with the collector as well as the artist in mind, the quality of art beckons the user to stay engaged encouraging secondary market sales of your art. With recurring royalties on every resale going back to the artist, being a part of this top marketplace is a must for working artists. See their FAQ for more. 

Rarible

Rarible takes the marketplace model and makes it decentralized with $RARI and a DAO (Decentralized Autonomous Organization) to manage development. Community members are rewarded for everything from moderation and curation to selling and buying. Token holders can vote on platform upgrades and governance. Artists earn $RARI as royalties on secondary market sales. Rarible is great for minting limited quantities of NFTs, and compatible with the ERC-1155 NFT standard that blurs the line between rare goods and fungible goods. See their FAQ for more.

Zora

If you took the artistic sensibilities of SuperRare and autonomous tinkerings of Rarible and birthed a platform for artists to create their own digital nation, it would be Zora. The idea is to let artists create artist owned collectives and communities. This platform seems best for established artists or collectives of local artists who feed vibrant communities, at least at first glance. But, although the platform is young, it looks to be a way to empower artists with deep tooling that artists need for the revolution—if you are to believe what a lot of musicians like Kanye West talk about. 

Read more about the future of the creator economy by musician RAC who recently used the platform to launch $TAPE a limited edition tokenized playlist. See their FAQ for more.

Quantstamp 实验室
2021年3月10日
2021年3月15日
所以你听说过这个加密的东西,但你是个苦逼的艺术家?好吧,让我们做0x到100,让你今天就开始吧! 

这部初级教程将向您展示如何使用加密钱包并销售您的艺术作品。它的重点将放在对你来说最重要的是什么,作为一个区块链艺术家销售NFTs,或Non-fungible Tokens--稀有数字商品的行业术语。我们将使用Ethereum平台,因为它是购买和销售NFTs最知名的平台。



首先,你需要一个钱包来管理你基于加密的资产。

首先,你需要一个钱包来管理你基于加密的资产。虽然有很多钱包可以探索,但Metamask--一个谷歌Chrome浏览器扩展--是非常值得信赖的,并且会做你需要的一切。安装后,通过提示,并格外注意写下你的种子词和密码,并将其存放在安全的地方。

警告:不要丢失你的种子密码!没有"丢失密码"功能,如果你被锁定,你将失去一切。没有"密码丢失"功能,如果你被锁定,你将失去一切。

设置完成后,您需要在钱包中存放一些以太币(Ethereum的本位货币),以便与网络进行交互。确保找到一个信誉良好的地方,让你将以太币(ETH)转移到你的MetaMask钱包中。Ethereum.org有一个很棒的教程。就像运行你的汽车一样,以太币用于为你的互动提供动力,包括NFT市场上的互动:这被称为"支付汽油"。需要注意的是,市场平台可能会在ETH中收取少量费用,但大部分汽油是用来保障Ethereum上的交易。

当Ethereum非常活跃的时候,汽油会变得很贵,所以建议在钱包里常备一堆ETH。别担心,虽然价格会随着时间的推移而变化,但钱包会在结账时自动计算汽油费--管理这一步会随着实践变得更容易。  

当在您的钱包之间发送交易时,请始终检查您发送的地址与您实际要发送的地址相同。大多数的诈骗发生在用户向他们不认识的地址发送时,特别是来自看似认识的人的DM。
与您的MetaMask钱包有问题?通过这个常见问题解答寻找一些帮助。



好了,你已经有了MetaMask和以太坊,你准备好了铸造一些NFTs,对吗?很好!让我们来看看一些日益增多的选择。让我们来看看越来越多的选择中的几个。

基础知识

NFT市场的运作一般类似于Ebay;当你铸造ERC721--代币标准时,你可以通过二级市场的销售为原创作者创造永久的版税,这取决于所使用的平台。换句话说,艺术家总是能得到分成--总是这样。ERC721代币作为一个概念是由Cryptopunks普及的,后来作为代币标准的灵感,然后用CryptoKitties证明是成功的。任何能够使用非可变资产属性的东西都可以看作是NFT,也就是说任何数字商品,包括艺术品都是NFT。它们之所以是不可互换的,是因为不同于Dogecoin所说的"1个Doge=1个Doge",1个Cryptopunk不等于1个不同的Cryptopunk。

OpenSea

OpenSea是最大的NFT市场,由于NFT普遍具有互操作性,大部分NFT都可以在这里买卖。最容易把OpenSea想象成NFTs的百货商店--它按藏品组织作品目录,提供的不仅仅是艺术品。你可以找到从各种VR元维的虚拟土地到Ethereum域名的一切。

NFTs的铸币过程在各个平台上都是相似的。如果你能在OpenSea上铸币,你就可能在任何地方铸币。 

初始设置

确保您已经用MetaMask登录。将鼠标悬停在左上角的圆圈/配置文件下拉菜单中,然后点击"我的配置文件",在这里,点击大的MetaMask狐狸图标下的"登录"。在这里,点击大的MetaMask狐狸图标下的"登录",你应该会看到一个MetaMask扩展的下拉菜单,要求连接。按照提示操作,直到登录。现在,点击左上方操作栏的"创建"。页面应该重新加载,在"创建新的收藏"下,点击蓝色的"创建"按钮。从这里开始,你将上传一个品牌标志,并填写一些信息来创建你的收藏品。一旦你有一个新的收藏开始,你可以点击蓝色的"添加新项目"。

设置您的数码精品

这是你真正铸造NFT的部分。上传您的图片、视频文件或GIF,最大100MB。填写所需信息,然后点击蓝色的"创建"按钮。对于本教程,不用太担心各种设置。重要的是,你可以区分物品的各种特性或稀有度等。人们甚至尝试过解锁内容,让用户获得与数字所有权挂钩的实物物品。现在MetaMask应该打开要求你签名。一旦签署,你就可以将NFT进行出售。

出售您的NFT

放置NFT出售将需要一些ETH--如果您忘记了如何获取Ethereum的本位币,请回滚到本文章的开头。点击蓝色的"出售"按钮将带您进入拍卖设置页面。您有三个主要选项。最高出价、设置价格和捆绑。

最高出价。 如果你认为你的项目可以获得很多兴趣, 你可以在设定的时间内用"最高出价"把你的数码产品卖给出价最高的人。如果这是一个收藏品的一部分,它可以帮助为收藏品中的其他项目设定一个理想的价格底线。这种方法的风险在于,如果珍贵的物品没有卖出去,收藏品的底价可能无法得到满足;好处是,一件出价高的物品可能会带动你收藏品中其他物品的价值。

设置价格。 使用"设置价格"可以让您以给定的价格或更高的价格出售稀有数字商品,并可选择设置让您随着时间的推移降低商品的价格,如果有极少的竞价或没有竞价。

捆绑。 使用"捆绑"可以让您以特定的价格将多个商品作为一组进行销售,一些可选的设置类似于"设置价格"。

所有的销售类型都可以让您设置一个拍卖到期日,在这个日期,物品会被移出市场。当你准备好后,点击蓝色的"发布你的清单"按钮,然后寻找MetaMask下拉。假设你的MetaMask钱包里有足够的汽油,你就会点击"确认",然后按照提示操作。铸造NFTs的价格会根据您选择的设置和当时的汽油价格而改变。油量不够?在MetaMask中点击"拒绝",去抢购ETH吧!

铸币和上市

一旦铸币过程开始,你需要等待交易被发布到区块链上。这可能需要几分钟的时间,所以你可以在活动下检查你的MetaMask,查看最近的交易,甚至可以在Etherscan上观看它们。留意你的MetaMask是否有任何额外的提示,比如OpenSea可能需要你签名等。最后,OpenSea会要求您添加您的电子邮件,这样当您的稀有数字商品有任何买家活动时,您就可以收到通知了。您需要再次在MetaMask中签署一个免费的元交易,并确认您的电子邮件地址以完成最后一步。欲了解更多信息,请查看他们的常见问题

恭喜你,你已经成功铸成了一个NFT!此外,你现在已经具备了与Ethereum区块链互动所需的技能!

让我们快速看看其他一些市场。事实上,你甚至可能已经看到这些被列为OpenSea的收藏品。

OpenSea上的收藏也可能是它自己的市场,就像superrare.co一样。


超稀有 

如果说OpenSea是一家百货公司,那么SuperRare就是一家策划的艺术馆。一些最独特的艺术家都会在SuperRare上出现。构建的收藏家和艺术家的思想,艺术的质量招引用户保持参与鼓励你的艺术的二级市场销售。每次转售的版税都会返还给艺术家,因此成为这个顶级市场的一部分是艺术家们必须要做的。更多信息请参见他们的常见问题

稀缺性

Rarible采用了市场模式,并通过$RARI和DAO(去中心化自治组织)来管理开发,使之成为去中心化。社区成员从版主和策展到销售和购买都会得到奖励。代币持有者可以对平台升级和治理进行投票。艺术家在二级市场销售中赚取RARI美元作为版税。Rarible非常适合铸造有限数量的NFT,并兼容ERC-1155 NFT标准,该标准模糊了稀有商品和易逝商品之间的界限。更多内容请参见他们的常见问题

佐拉

如果你把SuperRare的艺术感觉和Rarible的自主修修补补,孕育出一个平台,让艺术家们创建自己的数字国家,那就是Zora。这个想法是让艺术家创建艺术家自己的集体和社区。这个平台似乎最适合成熟的艺术家或本地艺术家的集体,至少在第一眼看来,他们养活了充满活力的社区。不过,虽然这个平台还很年轻,但它看起来是一种为艺术家赋能的方式,为艺术家提供革命所需的深层工具--如果你要相信像Kanye West这样的很多音乐人所说的话。

阅读更多关于创客经济的未来,由音乐人RAC提出,他最近利用平台推出了$TAPE一个限量版的代币化播放列表。更多内容请看他们的FAQ

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