Abstract: Method and system for secure valuation and access of data streams includes encrypting access to a data stream, storing the encrypted data stream on a secure platform, determining an estimated value of the data stream based on a prediction function, determining an accuracy of the estimated value, storing the estimated value and the accuracy of the estimated value with the data stream on the secure platform and controlling access on the secure platform to the data stream. Encrypting access to the data stream may be done on a blockchain. Access on the secure platform may be controlled by a token system and a value and number of tokens for accessing the data stream is determined based on the accuracy of the estimated value. Data streams may be bundled based on the value and number of tokens for accessing the plurality of data streams determined based on the accuracy of the estimated values.