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Sina Estavi is a London-based founder and product builder working across artificial intelligence, fintech, software and digital culture. Bridge AI's official history identifies him as Bridge Oracle's founder. In 2021, he acquired the NFT associated with Jack Dorsey's first tweet. His site describes work across Bridge HQ, NanoMoz and BridgeMM.

Sina Estavi is a London-based founder and product builder working across artificial intelligence, fintech, software and digital culture. Bridge AI’s official history says he founded Bridge Oracle in 2020. Its About page lists him as Founder & CEO and presents Bridge AI as the project’s next phase. In March 2021, Estavi acquired the NFT associated with Jack Dorsey’s first tweet through Valuables. Cent recorded the price as 1,630.5825601 ETH, then worth $2,915,835.47, and Reuters reported the buyer, citing Cent’s confirmation. His official site describes his current product work through Bridge HQ, including direction of NanoMoz and BridgeMM. NanoMoz’s public pages present a bilingual web Studio and describe a separate iPhone experience as still in development. BridgeMM is presented as early-stage market-making operations infrastructure, with deployment and pilot-readiness statements clearly attributed to first-party sources. Estavi’s work today focuses on turning complex technology into practical products that people can understand and use.

Sina Estavi is a London-based founder and product builder working across artificial intelligence, fintech, software and digital culture. His official biography describes a focus on turning technical complexity into clear, useful products. Bridge AI's official history says Estavi founded Bridge Oracle in November 2020 initially as a public oracle system connecting external data to smart contracts. Reuters and the BBC identified Estavi as Bridge Oracle's chief executive in 2021. In April 2025, the project's official account announced a rebrand from Bridge Oracle to Bridge AI. Bridge AI's About page lists Estavi as Founder & CEO; that title is a first-party statement rather than an independently verified corporate-registry appointment. In March 2021, Estavi acquired the NFT associated with Jack Dorsey's first tweet through Valuables by Cent. Valuables and Reuters record the price as 1,630.5825601 ETH, valued by Cent at $2,915,835.47 at sale. The transaction concerned the NFT: it did not transfer control of the underlying post or account and did not by itself transfer copyright or commercial rights. His official site describes his current product work through Bridge HQ, a portfolio identity rather than a separately asserted legal entity. NanoMoz is presented on its public pages as a Bridge HQ product with a bilingual web Studio; its standalone iPhone experience remains in development. BridgeMM is presented as market-making operations infrastructure. Its deployment and external-pilot readiness claims are attributed to first-party posts and are not described as independent proof of customers, performance or licensing. Estavi's public record also includes CryptoLand and BRG. Rather than resolving contested legal and operational history inside a promotional bio, his site maintains a separate source-led evidence record, with explicit attribution, limitations and correction routes. His stated working method emphasizes observation, practical design, measured iteration and rebuilding trust through what products consistently do over time and in practice.