Graph Blockchain Inc.: Graph Blockchain Initiates Proof of Stake Mining of Tezos ('XTZ') Toronto, Ontario--(Newsfile Corp. - May 7, 2021) - Graph Blockchain Inc. (CSE: GBLC) (OTC Pink: REGRF) ("Graph" or the "Company") is pleased to announce the Company has begun Proof of Stake Mining of Tezos's native token ( "XTZ Token"). The Company having acquired 100,000 XTZ Token's for USD $670,967 on May 5, 2021 has initiated staking of its full allocation using Coinbase. As of the date of this news release, the XTZ Token has already appreciated in value by 17.86%. [1] Additional information will be provided on the XTZ Token as the project develops and progresses through its development phases. XTZ Token can earn a staking reward with a estimated annual reward rate of 4.63% which may change over time and is based on the Tezos staking rewards generated.