Why does selling my data on-chain not stop the buyer from using it indefinitely?
机会
On-chain data marketplaces tokenize health, behavioral, and financial data as smart-contract-governed assets. But data is non-rival: selling a copy does not prevent the seller from keeping the original or the buyer from re-sharing it indefinitely. A smart contract can govern the initial transfer but cannot enforce downstream use restrictions, time limits, or purpose limitations once the data leaves the chain. Ocean Protocol's own documentation acknowledges that its Data NFTs represent intellectual property on-chain but are not enforced by legal contracts. Trusted execution environments and Compute-to-Data approaches offer partial answers but neither solves use-limit enforcement once data is decrypted and consumed by a buyer.
为什么重要
Until you can enforce bounded use on transferred data, data markets are legally fragile and structurally dependent on the buyer's good faith, which defeats the purpose of a trustless ledger.
我如何评估机会
机会评分是我的个人判断，而非量化指标：痛苦程度、发生频率，以及当前解决方案的匮乏程度。分数越高，意味着我认为越值得去构建。
出现时造成的痛苦程度。
人们实际遇到它的频率。
当前针对它的优质工具有多匮乏。