JPJA is the first NFT book by the author JP Janssen. He is also the creator of OLGA, which is considered the actual genuine first NFT by definition. \n\nThe book is called "The Economics of Bitcoin"\n\nJPJA is probably also the first DEFI contract. For more information on this please read here :\n\nhttps://jpjanssen.com/jpja-2014-book-nft-defi-pioneer/\n\nhttps://twitter.com/jp_janssen\n\nInspect the goods :\n\nhttps://xchain.io/asset/JPJA View contents of NFT by expanding Properties Below and at Emblem.Finance 👇 [View this NFT on Emblem.Finance](https://emblem.finance/nft?id=89968665541428261) XCP Explorer: [1CgwC92w4PBLhVNS8bQZ4YV14Zi7TUjRcy](https://xchain.io/address/1CgwC92w4PBLhVNS8bQZ4YV14Zi7TUjRcy)