Odaily Planet Daily News: Ethena and Securitize are participating in Spark's $1 billion tokenization competition for the upcoming stablecoin USDtb. The initial reserves of USDtb will be supported by over 90% from BlackRock's BUIDL fund, which is tokenized by Securitize. Spark is a platform under the Sky ecosystem (formerly MakerDAO), and the competition results will be decided by votes from Sky token holders. Ethena claims to contribute approximately $120 million in annual revenue to the Sky ecosystem, accounting for nearly 30% of total revenue. (TheBlock)