PANews June 28 news, according to Cointelegraph, Fidelity research analyst Daniel Gray refuted concerns that declining Bitcoin mining rewards would lead to long-term security deterioration, and in his latest research report pointed out that the Bitcoin network’s economic incentive mechanism is sufficient to ensure the blockchain’s long-term security. In the report, Daniel Gray reiterated the view that Bitcoin’s security does not solely depend on block rewards. The report noted that transaction fees, market incentives and other economic factors continuously incentivize miners to maintain network security, making the cost of a sustained attack prohibitively high.