CELO (CELO)

🚨STRIPE ACQUIRES THE VALORA TEAM Stripe has bought the team responsible for the Valora wallet, based on Celo. The developers will join Stripe in the blockchain space, while the Valora app and its intellectual property will return to cLabs.

🚨STRIPE ACQUIRES VALORA TEAM Stripe has bought the team behind Celo-based wallet Valora. The developers will join Stripe’s blockchain efforts, while the Valora app and its IP return to cLabs.

Stripe acquires the team behind the crypto wallet app Valora to further expand its stablecoin business. Valora founder Jackie Bona said the team will join Stripe to advance global financial accessibility, but transaction terms (including the number of people joining) were not disclosed; this acquisition does not involve Valora's core technology, and the app will return to cLabs for continued operation. Valora was founded in 2021 and is a mobile self‑custodial stablecoin wallet for the Celo ecosystem. (The Block) https://t.co/W3xa2YMzae

Every Rollup should ultimately use ZK, just to varying degrees. For example, after Celo migrated to L2 OP Stack, it adopted Succinct's OP Succinct Lite. This technology is very suitable for Rollups within the current OP architecture, and the most obvious improvement is that the challenge period can be reduced to under 7 days, with a minimum of 24 hours. Its principle is to use ZK only during disputes, rather than turning the entire Rollup into a ZK Rollup. The benefit is that it reduces the waiting time for withdrawals, while the project does not have to change the existing architecture, nor does it need to continuously pay ZK verification costs. It only needs to generate a ZK proof during a dispute, and a single verification ends the process. Therefore, it retains the low-cost characteristics of Optimistic Rollup while achieving dispute resolution efficiency comparable to ZK Rollup. However, OP Succinct Lite is still applied to the Optimistic model and needs to retain the challenge window, so it cannot reduce the challenge period to the extreme. Traditional Optimistic Rollup generally requires a 7‑day challenge period, which involves a “dispute game”. This is a game of challenging and proving errors, and it needs to give any potential challenger sufficient time to check the state and initiate a dispute. Moreover, it is a multi‑round battle process, with multiple back‑and‑forth exchanges between the Proposer and the Challenger, and each round must be submitted to L1. Therefore, it is a slow and complex “multi‑round battle”. The design of OP Succinct Lite is that after a dispute occurs, the Proposer only needs to generate a ZK proof once, and the smart contract can verify it in a single step to reach a decision. It does not need to wait for multiple rounds of battle or L1 confirmation, and the overall complexity is greatly reduced. However, this time cannot be shortened to the level of a full ZK Rollup because it needs to satisfy at least two time windows: the challenge window and the proof window. The main bottleneck is the proof window. Although SP1 and other zkVMs are fast, proving a state transition function still takes tens of minutes to several hours, and submitting a challenge also requires sufficient time. Therefore, 1 day is currently the shortest finality configuration officially supported. From a long‑term perspective, ZK is an ultimate solution, and this has a consensus foundation. The Optimistic model cannot provide a single proof for all information; it works by incremental checks, and when a dispute occurs, transactions must be replayed on L1, so its finality inherently depends on the challenge period, which must exist. Therefore, pure ZK immediacy can never be achieved. Pursuing fast and efficient finality will ultimately require a ZK solution. However, at present the vast majority of mainstream Rollups (such as Arbitrum, Base, etc.) have already adopted the Optimistic architecture. They started early and have captured market share, making migration difficult. Therefore, solutions like OP Succinct Lite provide an intermediate form that can acquire ZK capability without a full redesign, avoiding the need to choose exclusively between ZK and Optimistic.

With over 5 years in the industry, @Celo has been making a comeback since upgrading as an ETH L2. Their goal? to make stablecoins useful for everyday people around the world. ( they're crushing it in Africa at the moment taking a large share of their stablecoin txn volume) Genuinely impressed cos not a lot of teams are willing to push further. + good rep and sentiment the team has received from builders in CT. Noteworthy that their DAU (img 1) in comparison to top L2S, Arbitrum & base looks healthy. Good to see their partnership with @minipay ( subsidiary of @opera btw) Minipay has over 11M users > Grossed 300M+ stablecoin transactions > Exposes you to Tether Gold > Also, launched 40+ Mini Apps, generating revenues.

RWAs start here. Vibes and talks at #BinanceBlockchainWeek by @binance. 🩷 https://t.co/x18is5qpKx