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Welcome To Coin & Card Auctions

BID, BUY & SELL

Just like fingerprints identify individuals, our patent pending digital fingerprinting identifies any numismatic coins and sports cards from any other. Nano level data consists of 10s of millions of physical measurements that map height and color surface topography otherwise known as surface roughness. Data is processed with deep neural networks and artificial intelligence with algorithms pattern matching from numismatics which have already been graded by industry accepted third party grading companies. By comparing measured data outputs against 100s of millions of comparative measured datapoints from same or similar graded coins we are able to recognize consistency and inconsistencies of assigned grades. Another benefit is counterfeit detection as counterfeit coins have unique "measured footprints" that are easily detectable in our system. With blockchain technologies new global low-cost marketplaces are soon emerging. We developed the digital fingerprint also as intellectual property of a collectible or (DFIP). Watch for our Web3 low-cost marketplace with shared perpetual royalties automatically triggered on resales. Digital data means the future is very bright for the numismatics and sports cards industries.

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Coin and Card Auctions updates

1,000+ shareholders and climbing - Become an owner - Coming this June 2023 a follow-on Reg CF Offering

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May 2023 - ANNOUNCEMENTS

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Why Digital fingerprints and NFT will change numismatics and sports cards will change the markets

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Digital Fingerprints $12.00 - $65.00 - Digital fingerprint outputs uniquely identify any numismatic or sports card from any other using topography analysis and comparing 100s of millions of measured data points resulting in completely unbiased results. The system compares ISO output measurements and can determine even the smallest variables between assigned grades, spot grading inconsistencies and/or support assigned grades and provide customers detailed written reports and/or downloadable printable reports. We are industry leaders in low cost Web3 marketplaces which is the evolution from Web2 marketplaces such as Heritage, eBay, etc. Eventually, all Web 2 will transition to Web3. Major advantages include low-cost royalties supported marketplaces which can convert illiquid collectibles into liquid assets with perpetual income streams using shared royalties. For dealers and collectors, royalties' aggregation could maximize revenues for generations as perpetual income streams are based on collectibles resales. Contact ceo@coinandcardauctions.com or call (413) 264-6243 for more information.