[Bounty] Ether-arts.io : ERC721 art cards with a built-in lottery ticket

ETHER-ARTS CARDS
Ether-arts is an ERC721 standard backed art lottery ticket, which combines art and games. Based on the Ethereum blockchain, this new collectible can provide direct Ethereum compensation to the participants. Applying blockchain ensures that the user’s data and ownership are safe and the value of the digital collectible is protected as its issue volume is limited.

Each card issued has its own color property. Although the paintings/artwork might be different, cards with the same color property will have the same price and same publishing amount. The color properties are listed below.

Special Cards (Amber, Silver, Gold, Emerald, Sapphire, Ruby, Diamond) are not for sale and will be listed only for marketing purpose. Each special card has two recipe cards and a player with two recipe cards can get that particular special card for free. However, the supply is limited.

PURCHASING A CARD
Each ether-arts card’s price and supply amount is unique based on its color property and can be purchased at a fixed price from the website

SMALL PROBABILITY GAME AT 50% DISCOUNTED PRICE
If a user wishes to play but feels that the cards are too expensive, they can opt for a small probability game that allows them to pay 50% of the price of each card. The smart contract will then decide if the user can get the card or not based on a random number which is fair and transparent.

WINNER SELECTION
With this new blockchain game, players can get rewarded by the periodic lottery system, where every 10 days [days ending with 5, such as 5th, 15th, 25th], the smart contract chooses the 2 winner cards. Players holding these selected cards are given Ethereum rewards under a predefined policy.

The lottery algorithm receives random numbers from an external trustworthy source like wolfram alpha. What makes the external source more reliable is that the random number generated within the blockchain ecosystem can be unsafe and predictable, making the external source fair, provable, and transparent.

One winner card is selected from all the card types issued so far, Another winner card is selected from N recently issued cards. Since old card type can be the winner, every ether-arts card will have value even though it is old. Also since one winner card will be from recently issued cards, there always will be people who willing to buy recent cards. The N constant is 30 by default, but team have a right to change this constant to manage game's difficulty configuration.

REWARD POLICIES
Players who own both the winner cards will be the “first prize winners”. The first winners will share 45% of the total rewards fund and the rewards is equally divided if there is more than 1 winner. A player will be considered as the “second prize winner” if they own either of the two winner cards selected, with a shared reward of 35% of the prize pool. As there are only 2 winner cards, the 2nd prize winners are divided into two group and the second prize money can vary from user to user depending on the total supply of the cards owned and the number of people falling under this category.

For instance, cards A and B are winners. Group A, consisting of players who owned only card A and they will share 17.5% of the rewards fund, and group B, consisting of players who owned only card B will share 17.5% of the rewards fund. As 45% of the reward fund is shared by the first prize winners and 35% is shared by the second prize winners, the remaining 20% of the reward fund is transferred to the next round's prize pool. This acts as a small motivator for new customers and ensures that the reward fund of the next round is not zero. Additionally, if there is no second prize winner, the 17.5% awarded to that card will also be credited to the next game’s fund.

USER-TO-USER CARD EXCHANGE MARKET
Integrated into the website, the user-to-user card transaction functionality helps the players sell an ether-arts card that they no longer need, at a favorable price of their choice. The prize is required to be registered at the "my collection" menu. All cards, even if they are up for sale, will be owned by the original owner until the cards are sold. Additionally, before the cards are sold, the original owner can also claim the mission rewards. The reward is assigned to owner’s wallet address, not to ether-arts card itself.

COPYRIGHT OF A PICTURE
Ether-arts respects the artists’ copyright and has entered into a copyright contract with 12 artists from around the world, as of February 2019, for using their artworks in the card design. The artists are paid a royalty of 10% of the total amount of the cards sold.

Furthermore, Ether-arts also has its own artwork created by the team’s own deep-learning algorithm. The special cards tagged with the artist name “ether-arts.io” use the artwork generated by AI and the copyright of these pictures belongs to the ether-arts.io team.

In the case of classical paintings, 70 years after the artist’s death, the copyright expires in most of the countries and ether-arts uses these artworks as their commercial use is then allowed.

BOUNTY PROGRAMS
From now on, we will launch various bounty programs for users who can help improve the service of Ether-arts.io. The bounty program will continue to run after the launch of the service, and will provide appropriate compensation by objectively assessing the contribution. Compensation is an ether-arts card of various price ranges.

1. OPEN BETA TESTING BOUNTY(CLOSED)
During open beta testing period (~5 APR, 2019), bounty cards are paid to people who find logical bugs on the website and github contract. In addition, players who got the 1st prize rewards during beta testing will also be given real ether-arts cards that works in mainnet. During the open beta period, a lottery will be held at 3pm GMT every day so as to determine winners, and after the winner selection, 2~3 new cards will be added to the marketplace. These cards on the markets(Rinkeby network) are just for testing, but rewarded bounty cards are the real ones which works on mainnet.
Available card colors for bounty reward are OLIVE (0.4 ETH), ORANGE (0.6 ETH), RED (1.2 ETH), GRAY (2.0 ETH) BLUE (3.0 ETH), BROWN (5 ETH).

2. YOUTUBE REVIEW
If you publish an introducing video review on youtube that explains Ether-Arts services and our whitepapers, you're qualified to get bounty cards. Also, you will get additional points If your youtube review contains mission winner's case.
Available card colors for bounty reward are RED (1.2 ETH), GRAY (2.0 ETH) BLUE (3.0 ETH), BROWN (5 ETH). Team will choose reward card types for each bounty participant according to quality of their works, degree of attraction on the contents, the actual number of readers, and the response of readers.
Every 25th day in month, the list of bounty hunters to be rewarded will be published on our announcement channel on instagram. Anyone who wants to participates in bounty campaign have to send an email to admin@ether-arts.io with a link of their work before every 20th day in month.

3. CRYPTOCURRENCY NEWS SITE ARTICLES(CLOSED)
Cards among Brown (5 ETH), WINE (7.5 ETH), INDIGO (10.0 ETH) will be issued.
The reward card color is selected based on the fidelity of the contents, the reputation of the site, the number of readers, and the actual influence of the site. Articles have to be last at least 2 months, and have its own URL so as to utilize its link. Please contact us using this email (admin@ether-arts.io) if you are a reporter or an administrator of cryptocurrency news site.

4. TRANSLATION OF WHITEPAPER(CLOSED)
We need English (proof of initial whitepaper) / Chinese / Spanish / Japanese / Indian / Korean / German / French / Russian version of whitepapers. If there is anyone who can handle more than one of these languages perfectly, please let us know by email(admin@ether-arts.io).
We have assigned these color card rewards for this translation rewards : ORANGE (0.6 ETH), RED (1.2 ETH) and GRAY (2.0 ETH) cards. Our marketing team will select reward card types according to accuracy of translation result. Please note that using google translator is strictly not allowed.
Participants need to consult with the operator in advance to avoid duplicate translations (admin@ether-arts.io) and we could request submitting past translation works of the applicants.

5. PROMOTING ETHER-ARTS.IO TO CRYPTO COMMUNITIES
Post your/others' ether-arts reviews to the cryptocurrency communities around the world. We pay the bounty hunters the appropriate compensation based on the total cumulative view count of the posts. (Minimum cumulative view count : 300+)
Participants on community promotion can obtain these color cards : GREEN (0.25 ETH), OLIVE (0.4 ETH), ORANGE (0.6 ETH), RED (1.2 ETH), GRAY (2.0 ETH). Links to your promotion posts should be emailed to this address(support@ether-arts.io) before every 20th day in month. At the moments of our view counts confirmation, only articles that's not removed is valid. Note that we can filter out unfaithful posts. Screen captures are not allowed because they can be manipulated.

Collectibles as a new asset class
Ether-Arts is a new type of collectibles that combines art and game. This collection is also a type of investment asset that can provide a direct ethereum compensation to the participants. The more cards you have, the greater the chance of reward you will have. The rarer card you have, the greater the amount of reward you will receive once selected as a winner. Try to join our brand-new game to get ethereum rewards securely and transparently. This is a lottery card that never expires. If you own this card, you will also have an infinite opportunity to get ethereum rewards. Ether-arts is a safe and exciting digital asset combining art and lottery.