Background- there is name service such as ENS (ethereum name service), ANS (aptos name service), etc- there is NFT profile picture linkage provided by most of the wallet provider- but there is, no a single service that showcase all our identity as a virtual card just like a physical business name card In web2.0, there is popular business card exchange service in JP that solve this issue- https://8card.net/ Solution- meishi is designed to solve this- meishi will reimagine on how virtual identity card can be used to replace our phyiscal business name card- meishi is a combination ofi) physical name card&gt; the normal physical name card will be captured as imageii) link tree&gt; provide essential link to our card viewer (example, product highlight, referral links, etc)&gt; same concept as <a href="https://linktr.ee/" rel="noreferrer" target="_blank">linktree</a> in web2.0iii) virtual name card&gt; share all your essential information to your card viewer (example, address, phone, etc)iv) name service&gt; provide multi chain wallet information and identityv) NFT&gt; link your NFT and use it as your profile image&gt; each virtual card exchage with user is minted as NFTvi) omnichain wallet&gt; allow support of various chain to send and receive token from other users&gt; a single unique wallet ID for all different chain&gt; provide a unified name service address to link with different blockchain<img src="https://res.cloudinary.com/travary/image/upload/w_800/v1/prd-akindo-public/communities/description-images/VwaO3mrXlCG0oEvr.png" /> For enterprise&gt; user for enterprise, can create organization in meishi&gt; this allows creation of paymaster to sponsor all transaction cost for member in the organization that use this service&gt; it will support various blockchain Vision for enterprise&gt; create a universal paymaster that can sponsor any transaction used by the members&gt; this will help to promote the usage and adoption of blockchain meishi advantage&gt; <a href="https://8card.net/" rel="noreferrer" target="_blank">eight service in JP</a> charges a service fee for premium members, meishi can provide very low fee with equal value&gt; runs on blockchain, everything is visible to everyone

meishi

Software Developer

Nazotoki 3.0 a puzzle solving gameFI Tokenomicsi) user&gt; user need to use NZTK coin to play the puzzlei) if user won, user will get 1 NZTK coinii) if user lose, user will lose the entry NZTK coin&gt; the user will solve the puzzle and choose the correct answer from a list of options provided&gt; when the user solve the puzzle correctly, the user will mint a NFT ii) creator&gt; create puzzle with questions and answer&gt; creator will own the NFT collection of the puzzle&gt; each time user play the puzzle, the creator will get NZTK &gt; the entry fee is set by the creator

Nazotoki 3.0

Background There are 2 biggest challenge challenge for autonomous robot running on road or pedestrian walkway.1) is to have an accurate annotated map.&gt; Annotated map means having correct traffic light position and orientation, the white line on the road, the road sign (stop sign, speed limit sign, etc).&gt; These information are important for the autonomous driving robot to make the correct decision. Below is a screenshot of mapping information from <a href="https://youtu.be/2atwiP6KTao?t=145" rel="noreferrer" target="_blank">NURO</a>, <img src="https://res.cloudinary.com/travary/image/upload/w_800/v1/prd-akindo-public/communities/description-images/GLKDx9LAvHXQJOpQ.png" /> 2) to have enough of data samples to train its recognition model to give accurate result&gt; the data sample needs to have high degree variation (example: close and far distance, images at different time and sun intensity, etc)&gt; having these big data will help to train and optimize the AI model of the robot (example traffic light recognition, traffic sign recognition, etc) to give better accuracy Problem&gt; High resource and time consuming processThe process is usually semi hybrid, that requires a lot of man hours work to label and ensure data correctness. In <a href="https://www.google.com/search?q=how+many+annotator+in+tesla&amp;oq=how+many+annotator+in+tesla&amp;gs_lcrp=EgZjaHJvbWUyBggAEEUYOdIBCDQ3MjRqMGoxqAIAsAIA&amp;sourceid=chrome&amp;ie=UTF-8" rel="noreferrer" target="_blank">TESLA</a>, there are about 1000 annotator to label the data everyday. &gt; Accuracy of the annotated datahaving wrong data being annotated, it could cause harm and worst case an accident might occur. For example, in an autonomous driving car, usually they will get the traffic light map data to match with the robot detected traffic light output bounding box. In the screenshot below, it is important for the robot to know which traffic light is relevant.(as highlighted in green). These information are usually obtain from the prior map database. A wrong label data will cause an accident in this case<img src="https://res.cloudinary.com/travary/image/upload/w_800/v1/prd-akindo-public/communities/description-images/RDKOzdoxAc9e0l3.png" /> Solutioni) crowdsourcing of traffic light data collection&gt; user will mine new traffic light by uploading images, position, orientation of traffic light&gt; user will help to label the traffic light ii) decentralize validation of data&gt; user will run a shared AI model to validate the traffic light data&gt; this user is known as validator&gt; validator is incentive by getting fee from the user who consume the data&gt; validator is incentive to ensure the data is correct&gt; any wrong data is found a consensus algorithm will be applied to resolve it iii) consumption of data&gt; user can download the data from the chain&gt; a fee will be applied depending on the amount of traffic light that the user obtain&gt; these fee are used to incentive the user and the validator, to expand the coverage of traffic light and to provide accurate data

deTraffic

Genealogy tree is a dapp that helps to organize family history and relationship, it features family tree building editor, family record integration and collaborative capabilities. Problem statementCurrently, most of the family (genealogy) tree is manually recorded in a book, below is an image of a family book record that is more than 100 years old!. It is prone of getting damaged due to natural disaster, accident, or pest infestation. In addition, this information is not easily accessible by anyone, as the family member has to go physically to the clan house (a place that store and manage all these record) to view it.<img src="https://lh7-us.googleusercontent.com/_0vKuJktLp8A0JeTRLSkT7S-mb5qErG-Ik6hulwUm4Mre8bokz2YBi616ZTil6zn1IU-b29yyeHOSFCySBeN5JhxQDOP2YqIp9Dt7chWPH_Bq-bS6ShbLSniQBlhFxlLvTV0sawax5voV6Nol_ZS2Q56rA=nw" /> in recent years, they start to transition the record to store them in PC, so they are able to preserve the record and print them easily. Below is an image of the new family book, at the bottom right (the right most column) indicates the generation number, and it has up to 28th generation! , an average timespan of each generation is about 30 years, 30 * 28 = 840 years! It is amazing that this book contains information of family members recorded for almost 840 years! In addition, some names on the book has been modified by pasting paper with new name on it as shown in the image below<img src="https://lh7-us.googleusercontent.com/d4oSHl3rQsRKdPHOJN1ycgLuMItFkgTlIItcuUR2p1PH3C0mBn0q3KVs9AR5urtAhheaQcSSUC8kkGdTG0JwJla-tnmbClxSBmZpDRxEI3HXRj26AhbXllX7r8TTDbVb9-uK_0ls14WRcgqSytpOBPc4jQ=nw" /> Adoption to web 3.0Genealogy tree is inspired from this issue, and it is designed to solve this problem using blockchain technology, it provides feature such as good data integrity, easy accessibility, being transparent and tracebility More information about genealogy tree concept<a href="https://docs.google.com/presentation/d/e/2PACX-1vTgWU1s_QDcxJnWQ3kISw7WKX5ku54sIIDVyt7xKDpJ_rSCcbdgzC8a2C91AQkmCajsft24zUGbRTV3/pub?start=true&amp;loop=false&amp;delayms=3000&amp;slide=id.g2c7d1c37733_0_116" rel="noreferrer" target="_blank">https://docs.google.com/presentation/d/e/2PACX-1vTgWU1s_QDcxJnWQ3kISw7WKX5ku54sIIDVyt7xKDpJ_rSCcbdgzC8a2C91AQkmCajsft24zUGbRTV3/pub?start=true&amp;loop=false&amp;delayms=3000&amp;slide=id.g2c7d1c37733_0_116</a> X post link<a href="https://twitter.com/discovertokyoo/status/1774248394963431717" rel="noreferrer" target="_blank">https://twitter.com/discovertokyoo/status/1774248394963431717</a>

Genealogy Tree

<img src="https://res.cloudinary.com/travary/image/upload/w_800/v1/prd-akindo-public/communities/description-images/rgv84Ez2lsz9EVmL.png" /> Background &gt; have you ever wanted to go to watch a concert of an artist that you have idolized and love&gt; but you are being hold back, because the tickets already sold out, despite you start to purchase them at the designated launch time?&gt; and then you check out later online, there are people start selling these tickets at exorbitant price?&gt; this is issue is known as ticket scalping issue, and it is a serious social issue that we want to solve with our dapp&gt; there are many news reported about this, some countries try to legitimate law to prevent this but with less effective, and the abuse is still widespreadi) https://en.wikipedia.org/wiki/Ticket_resaleii) https://brazilian.report/liveblog/politics-insider/2024/04/25/brazil-taylor-swift-act-ticket-scalping/iii) https://asianews.network/scalpers-take-bigger-cut-of-korean-music-industry/iv) https://techwireasia.com/08/2023/ticket-scalping-why-concert-tickets-are-always-out-of-reach/ Problemi) loyal fans fail to get tickets&gt; scalper tend to buy concert ticket at bulk from the official sites&gt; usually deploying various members to get as much tickets as possible&gt; this prevents the actual fan to obtain the ticket ii) paying high price to scalper for tickets to desperate fans&gt; scalper will resell the tickets at exorbitant price (usually 3 to 10x) to their customer iii) major revenue lost to artist&gt; in US, ticket reselling (or scalper) issue has a value of <a href="https://www.cnbc.com/2015/03/04/online-ticket-resellers-the-surreptitious-rise-of-the-online-scalper.html" rel="noreferrer" target="_blank">5 billion USD market in US</a> and is still growing&gt; these are the potential revenue lost to the artist and the loyal fans paying unnecessary fee for this iv) reliability of ticket purchase sites&gt; most of the ticket reservation site for popular artist will tend to crash when they start to launch, as they are huge influx of users trying to obtain them v) non transparent of random ticket selling&gt; some sites allow user to preregistered to get the tickets, and they will be randomly selected to get the ticket (example in Tokyo Olympics 2020, users are required to register to the pool, before randomly selected to get the ticket)&gt; however, this randomness is non transparent Solutioni) ticket as soul bound NFT&gt; user will receive a soul bound NFT, after they make the ticket purchase&gt; user cant transfer it to other user, and then can only redeem the NFT and at the entrace of the concert&gt; once it is redeem, the NFT will be burned ii) gather wallet activity before allowing user to purchase ticket&gt; employ similar method used in Sepolia faucet testnet, that require user wallet to have a minimum amount, and activitiy before they are allowed to buy&gt; this is to prevent scalper to create multiple wallet to buy the ticket iii) deployment in blockchain for transparent and reliability&gt; as the dapp will run in the blockchain, all the decision is transparent&gt; the blockchain will run to eternity that solve the reliability issue of existing ticket system iv) good user experience using stable coin as transaction&gt; using zksync paymaster, that allow user to have good user experience, as they could use stable coin (USDT, USDC) to make the ticket purchase&gt; the concert organizer could employ sponsored transaction to improve the UX&gt; the fee to run in the blockchain will be much cheaper compare to existing credit card payment system Edge casesi) buyer is in emergency and cant use ticket, buyer can refund the ticket back to organizer, and the organizer can sell it to next person in waiting

de-scalper

<h2>What it does</h2>a decentralized platform that allows owner to incentives user to gather information about a point of interest defined by the owner. Owner could offer a bounty for user that participate in the process. User need to complete the tasks defined by owner to receive the bounty reward Example- owner wants to know the status of the restaurant (whether is open or it is crowded with people)- owner make an offer of 0.01 ETH for users to take picture of the shop at the latest time- owner create an escrow contract for the bounty reward- user A and user B snap a picture and share it in the platform- owner validate them and the escrow contract will release the reward to user A and user B <h2>The problem it solves</h2>currently, if we wanted to know more information about a point of interest, we have few options- using x (twitter) to search for the point of interest hashtag- using mapping service (google, bing, etc)- using instagramthese options are not guarantee to have the latest information that of interest to the user or in worst scenario, there is no information available from these sources. POI is developed to solve this issue, POI is designed to be a decentralized platform that allows user to offer a bounty to crowd source the point of interest information that are interested of. This creates an active mechanism, that rewards the public for helping the user to gather information related to POI compare to traditional approach mention above, that is passive and waiting for known information to exist. <h2>Roadmap</h2>- provide login using web3auth to allow any user to onboard easily- develop the gasless paymaster that allow owner to sponsor all the transactions used by users- develop an escrow contract to facilitate the bounty reward- develop the frontend that is mobile first for the dapp- store all the images in IPFS- develop the smart contract that store all the metadata- develop a subgraph that store and query all the events emitted in the contract- implement the tokenomics for POI that rewards owner and user with POI (ERC20 token) for participating in the system, allow using POI token as bountry <h2> </h2>

CountFI is a gameFI that allows user to mint a unique NFT based on certain mathematical properties ConceptUser need to perform an action to reach a value derive from certain mathematical sequences An actions consists of 3 types- increment (increase the value by 1)- decrement (decrease the value by 1)- random (either increment or decrement) When the value is achieved a single unique NFT will be minted for that collection The max number of mintable NFT in a collection is determined by the mathematical sequence This creates an intrinsic value for each minted NFT through collaboration of many users to achieve that count together. The minted NFT will have an unique artwork that is generated from the mathematical properties An example of a mathematical sequence is <a href="https://en.wikipedia.org/wiki/Fibonacci_sequence" rel="noreferrer" target="_blank">fibonacci sequence</a>. The maximum number of NFT available for this collection is only 185 NFT (limit by 128bit unsigned integer counter value) There are various different types of mathematical sequences that can be used for this Every action made by user, a new COUNT coin is minted and transfer to user. This coin can be used for various purposes in the dapp COUNT coin utilities&gt; As a entry fee to perform an action&gt; Allow using this coin for changing the dapp theme&gt; Allow using this coin for NFT trading&gt; To create new mathematical sequences collection&gt; Etc Count input methodThere are various method that we can use for the input to change the count value&gt; User manually click to perform action in dapp&gt; User smartphone data like shaking, steps and etc are used to map to the action&gt; Etc

CountFI

Background&gt; Japan has gained significant influx of tourist in post covid era, it is reported that tourist arrival in Japan is double of 2023&gt; currently, the arrival of tourist in Japan is at historical high, this provides a huge economy opportunity and at the same time it causes issues to the local society too&gt; reference<a href="https://www.washingtonpost.com/world/2024/05/15/japan-over-tourism-fuji-kyoto/" rel="noreferrer" target="_blank">https://www.washingtonpost.com/world/2024/05/15/japan-over-tourism-fuji-kyoto/</a><a href="https://www.tourism.jp/en/tourism-database/stats/inbound/" rel="noreferrer" target="_blank">https://www.tourism.jp/en/tourism-database/stats/inbound/</a> Problemi) abuse of tax free items by reselling them&gt; this causes losses of tax revenue to the Japan government&gt; this causes shortage of product due to artificial demand injected by abuser (as they are benefited from 10% tax free discount)&gt; additional administrative cost due to counter tax-free item abuse activity by the government&gt; reference<a href="https://www.asahi.com/ajw/articles/15234639#:~:text=Currently%2C%20tourists%20are%20not%20charged,departure%20and%20confirm%20the%20purchases." rel="noreferrer" target="_blank">https://www.asahi.com/ajw/articles/15234639#:~:text=Currently%2C%20tourists%20are%20not%20charged,departure%20and%20confirm%20the%20purchases.</a><a href="https://english.kyodonews.net/news/2024/04/6b7e5d6282c6-japan-eyes-cashless-tax-refunds-to-stem-illicit-resale-by-tourists.html" rel="noreferrer" target="_blank">https://english.kyodonews.net/news/2024/04/6b7e5d6282c6-japan-eyes-cashless-tax-refunds-to-stem-illicit-resale-by-tourists.html</a> ii) long processing time and complicated procedures for tax refund&gt; due to high influx of tourist, most of the counter tend to be very long ( around 30 mins waiting time)&gt; it is inconvenient for tourist to go to designated tax free counter to have their purchase refunded iii) no single application, that connects all the payment and booking system (example: JR train ticket, shinkansen, hotel, amusement park ticket, etc) used by tourist&gt; most tourist that arrive in Japan, tend to have communication issue when they make payment in restaurant or shops&gt; most website used in Japan is lack of English support, this makes it harder for tourist to make any reservation or payment for service&gt; there are many different website that provide different services, which make it harder for tourist to navigate iv) no digital payment app usable for tourist in Japan&gt; there are 63million people using PayPay for payment, but PayPay is not accessible for tourist&gt; there is only a limited number of payment app that supports payment for tourist (example Touch N Go, AliPay, WeChat), but it is only very limited number of shop support it&gt; most tourist used cash or credit card for payment which is inconvenient&gt; this is huge opportunity to target digital payment specialized for tourist Solutioni) a tourist friendly super payment dapp&gt; there is no application that focuses on solving the tourist UX in Japan&gt; Japan Pay is designed to give the best user experience for tourist in Japan&gt; tourist can make digital payment using this dapp, just like how the local use PayPay&gt; tourist can use Japan Pay to do all their booking, and payment related to their travel activity such as hotel payment, shinkansen payment, tickets payment, etc ii) transparent tax free refund&gt; user who use Japan Pay can get their tax free refunded immediately during purchase&gt; government of JP can track all the tax free activity publicly, this prevents resale of tax free itemsreferencehttps://www.mof.go.jp/english/policy/tax_policy/tax_system/consumption/index.html#a03 iii) simple account creation and gasless transaction&gt; to have the best onboarding for majority of users, Japan Pay aims to achieve this 2 points to provide the best UX for users Benefits to user&gt; tourist able to use digital payment in Japan&gt; able to make purchase and reservation for all travelling related expenses through this app with English support Benefits to store owner&gt; with low transaction cost using JOC, Japan Pay can provide lower transaction fee compare to PayPay or credit card payment&gt; increase sales activity to tourist by providing good payment service Benefits to government&gt; reduce leakage due to tax free reseller

timx

Winner of

Winner of

Skills

Interests

Favorite ecosystems

Projects

Projects

Hackathons builder in