Koh-i-Noor The first and unique NFT

Meet koh-i-noor, the trustless first signum-based nft powered by SignumJ Smart Contracts, Become owner of this unique NFT and then you either keep the token or have 10% return of investment when a new owner arrives.
Token details

Current owner


Current price

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Be the owner of first NFT powered by the Signum Blockchain

Smart Contract address



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Koh-i-Noor is the most famous diamond of the ancient world, discovered in India about 5000 years ago. This diamond passed the hand of many rulers until being ceded to Queen Victoria after the British annexation of the Punjab in 1849. The Koh-i-Noor has long been a subject of diplomatic controversy, with India, Pakistan, Iran, and Afghanistan all demanding its return from the UK at various points.
In this virtual reality experiment, you can own the Koh-i-Noor token but you will never know for how long.

Owners chain

Discover the chain of the last 45 owners and the block they lost the ownership.



Check the Java smart contract source code, written using Signum SmartJ smart contracts for Signum.
Multi-out transactions or transactions with less than 30 Signa are ignored. Never send funds directly from an exchange, use your own wallet.
Anyone sending the current price become the new owner and price is increased by 10%. Transactions sending less than the current price are refunded (minus 30 Signa). Previous owner receives a return of investment of 10% over his entering price (minus 1% fee). If the amount sent is higher than the current price, the value in excess is taken as fee.
After receiving a transaction, the ownership transfer and payment of previous owner takes place in the next block. If two or more transactions are received in the same block, one randomly chosen is the new owner and the others refunded (minus 30 Signa). The smart contract code running is available on github. Inspect this code, the bytecode running, and SRS code, since there is absolutely no warranty it actually works this way!