Odaily News On August 28, Japan's largest cryptocurrency-themed event, WebX Conference, opened in Tokyo, Japan. Jun Watanabe, chairman of Sony Block Solutions Labs, and Sota Watanabe, CEO of Startale Labs (co-founder of Astar Network), introduced the details of Sony's Layer2 network Soneium at the conference. At the same time, Soneium also announced that the testnet Spark is now online and announced the initial launch partners of the testnet. Technical partners include Astar Network, Optimism, Alchemy, Circle, Graph Protocol, Chainlink; infrastructure partners include Pyth Network, Alchemy Pay, Privy, RAIR, Reservoir, Sentio, Sequence, thirdweb, Transak, Web3Auth, etc.