Audit log

Every state-changing event for Cega: moderation decisions on community submissions, plus corrections and updates from the news pipeline. URL-based decisions carry three independent witnesses — the original source, an Internet Archive snapshot taken at submission time, and a Solana memo signed by our publicly-disclosed publisher key.

1. #1publishby system:backfill

   2026-05-31 21:15:08Z
   Score: ? → ? (no score change)
   anchoranchored

   chain

   ●mainnet-betaslot 423,453,946

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   2uB1wgv2cPw7…KWpsbF5Hcopyexplorer ↗

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   C8kdw8E85ywi…haUMZ6Vgcopysha256 → base58

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   {"actor":"system:backfill","investigation_id":"5dc2a607-8031-498f-95d4-dd9fd7069a5d","kind":"publish","page_slug":"cega","published_at":"2026-05-31T21:15:08.899Z","sequence_num":1,"snapshot":{"content_type":"investigation","entity_name":"Cega","sections":[{"content":"Cega described itself as the first DeFi protocol focused exclusively on exotic derivatives, bringing structured product vault strategies — including Fixed Coupon Notes (FCN), Bond + Options vaults, Leveraged Option Vaults (LOV), Shark Fin notes, and Dual Currency vaults — to on-chain execution. The protocol launched on Solana in June 2022, expanded to Ethereum in Q1 2023, and further expanded to Arbitrum in mid-2023. Yield strategies typically ran 27-day cycles and accepted USDC, USDT, ETH, stETH, and WBTC. Advertised APYs ranged from approximately 12% in lower-risk products up to figures exceeding 100% in higher-risk or NFT-gated vaults. All strategies incorporated 'knock-in' barrier structures that conditionally protected depositor principal unless underlying asset prices fell beyond a set threshold (commonly 50%).","heading":"Protocol Overview","severity":"low","sources":[{"credibility":2,"name":"Introducing Cega, The Decentralized Exotic Derivatives Protocol — Medium","type":"official","url":"https://cegafi.medium.com/introducing-cega-the-decentralized-exotic-derivatives-protocol-c199908694bc"},{"credibility":2,"name":"Cega Mainnet Launch — Medium","type":"official","url":"https://cegafi.medium.com/cega-mainnet-launch-c57739bcba9c"},{"credibility":2,"name":"Cega's exotic DeFi derivatives expand to Ethereum Layer 2 Arbitrum — The Block","type":"news_article","url":"https://www.theblock.co/post/238584/cega-defi-arbitrum"},{"credibility":2,"name":"Solana Options Protocol Cega Comes to Ethereum — Blockworks","type":"news_article","url":"https://blockworks.co/news/solana-options-protocol-cega-comes-to-ethereum"}]},{"content":"Cega's co-founder and CEO, Arisa Toyosaki, maintains a public identity. She is a named individual who previously worked as a derivatives trader at UBS and a product marketing manager at Google in Tokyo. She graduated from Northwestern University and was named to the Forbes JAPAN 30 Under 30 list for 2023. Toyosaki also serves as a director of the Japan Blockchain Association. Her X handle is @arisatoyo and she has participated in public interviews and podcasts discussing the protocol. The broader Cega team was described as comprising former derivatives traders and developers, but other individual team members have not been publicly named with the same prominence as Toyosaki. The protocol's named, credentialed founder with a verifiable traditional finance background is a positive transparency signal. No founders or key personnel are anonymous or pseudonymous.","heading":"Team Transparency","severity":"low","sources":[{"credibility":2,"name":"Exclusive Interview with Arisa Toyosaki — Iolite Magazine","type":"news_article","url":"https://iolite.net/en/magazine/vol6/interview-arisa-toyosaki"},{"credibility":2,"name":"Blockcast 46: Cega Co-Founder Arisa Toyosaki Talks User-Friendly DeFi Options","type":"news_article","url":"https://www.blockhead.co/2024/11/03/blockcast-46-cega-co-founder-arisa-toyosaki-talks-user-friendly-defi-options/"},{"credibility":1,"name":"Cega fundraising tops $9.3M — Business Wire","type":"news_article","url":"https://www.businesswire.com/news/home/20230323005043/en/Cega-fundraising-tops-$9.3M-in-total-to-accelerate-DeFi-exotic-structured-products-on-chain"}]},{"content":"Cega raised a $4.3 million seed round in March 2022 led by Dragonfly Capital Partners, with participation from Pantera Capital, Coinbase Ventures, Alameda Research, and Solana Ventures, at a reported $60 million valuation. In March 2023 the company raised an additional $5 million led again by Dragonfly Capital, with continued participation from Pantera Capital and Robot Ventures (led by Tarun Chitra and Robert Leshner), bringing total funding to $9.3 million. The participation of Alameda Research as an early investor — and, subsequently, as an active market maker counterparty in Cega's Bond + Options vaults — created potential concentrations of counterparty exposure that materialized when FTX and Alameda collapsed in November 2022. Cega reported that it successfully recovered all funds lent to Alameda through its ISDA-backed contractual framework (see Counterparty Risk section). The remaining investor roster of Dragonfly, Pantera, and Coinbase Ventures represents institutional backers with established track records in crypto venture.","heading":"Funding and Investor Backing","severity":"low","sources":[{"credibility":1,"name":"Cega Raises $4.3M from Dragonfly, Pantera — Business Wire","type":"news_article","url":"https://www.businesswire.com/news/home/20220308005046/en/Cega-Raises-$4.3M-from-Dragonfly-Pantera-to-Build-the-First-Exotic-Structured-Products-in-Cryptocurrency"},{"credibility":1,"name":"Cega fundraising tops $9.3M — Business Wire","type":"news_article","url":"https://www.businesswire.com/news/home/20230323005043/en/Cega-fundraising-tops-$9.3M-in-total-to-accelerate-DeFi-exotic-structured-products-on-chain"}]},{"content":"Cega's Bond + Options vault structure required the protocol to lend depositor capital to whitelisted market makers who purchased options from the vaults. This introduced real counterparty credit risk. Alameda Research served as one of Cega's participating market makers. When FTX and Alameda collapsed in November 2022, Alameda defaulted on its counterparty obligations to Cega. According to Cega's own published account, the protocol was able to recover all funds lent to Alameda by leveraging two key risk controls: (1) ISDA Master Agreements that gave Cega a legal basis to pursue recourse against the defaulting counterparty, and (2) active credit monitoring through its partnership with Credora, which performed KYC and ongoing credit surveillance of market makers. Cega has also stated it signs ISDA agreements with all counterparties and uses Credora to independently monitor their creditworthiness. The protocol reports that no user funds were lost during the Alameda default. This incident is notable as a real stress test that the protocol reportedly passed, though the claim that full recovery occurred is sourced from Cega's own communications rather than an independent audit or third-party confirmation.","heading":"Counterparty Risk and the Alameda Research Incident","severity":"medium","sources":[{"credibility":2,"name":"Cega, Credit and Counterparty Management — Medium","type":"official","url":"https://medium.com/cega-fi/cega-credit-and-counterparty-management-ed44915e43b1"},{"credibility":2,"name":"Cega announces partnership with Credora to reduce counterparty trading risk — Medium","type":"official","url":"https://cegafi.medium.com/cega-announces-partnership-with-credora-to-reduce-counterparty-trading-risk-85f656030c8d"}]},{"content":"Cega's Ethereum smart contracts were audited by both OtterSec and Zellic, with Zellic's assessment conducted in February 2023 (February 13–15, 2023). The Solana program was audited by OtterSec and received security consultation from Zellic during the development phase. Both auditing firms reportedly found no critical vulnerabilities in the codebase, and all recommendations from audit reports were implemented according to the protocol's documentation. In addition to one-time audits, Cega maintained a monthly retainer with OtterSec to review new feature code prior to deployment. Subsequent protocol upgrades — including Dual Currency vaults, FCN V2, Shark Fin, and Pendle/Ether.fi product integrations — also underwent OtterSec audits and additional consultation. The protocol's GitHub organization (github.com/cega-fi) includes public SDK repositories for both EVM and Solana. No independent exploit or hack of Cega's smart contracts has been reported by major security tracking sources such as DefiLlama or ChainSec. The absence of a publicly disclosed critical finding or on-chain exploit across a multi-year operating history is a positive security signal.","heading":"Smart Contract Security and Audits","severity":"low","sources":[{"credibility":2,"name":"Audits and Security — Cega Documentation","type":"official","url":"https://docs.cega.fi/cega/security/audits-and-security"},{"credibility":2,"name":"Zellic — Cega Audit Publications","type":"research","url":"https://reports.zellic.io/publications/cega"},{"credibility":2,"name":"Cega GitHub Organization","type":"official","url":"https://github.com/cega-fi"}]},{"content":"Cega's stated custody model keeps user-deposited capital within the protocol's smart contracts at all times. Funds are not transferred off-chain or to a centralized custodian during the deposit phase. However, the Bond + Options vault structure involves lending depositor capital to third-party market makers (off-chain counterparties) who purchase options from the protocol — this segment of the capital does leave the smart contract environment and is subject to the creditworthiness of those counterparties. Withdrawals are queued and processed at vault expiry (typically every 27 days), meaning liquidity is not immediately available between cycles. Users who do not submit withdrawal requests have their principal automatically re-enrolled in the next cycle. The knock-in barrier mechanism provides partial principal protection, but users remain exposed to loss of principal if the price of the underlying asset drops beyond the barrier level (often set at 50% below entry). Yield is at risk if market makers default without recovery. The protocol's ISDA framework is designed to address this, but its effectiveness depends on the legal enforceability and creditworthiness of the counterparty.","heading":"Custody Model and User Fund Risk","severity":"medium","sources":[{"credibility":2,"name":"Cega Vault Tokens Documentation","type":"official","url":"https://docs.cega.fi/cega/how-cega-works/vault-tokens"},{"credibility":2,"name":"Cega Withdrawals & FAQs","type":"official","url":"https://docs.cega.fi/cega/user-guides/withdrawals-and-faqs"},{"credibility":2,"name":"What Is Cega? Understanding Alternative Options Pools — Gate Learn","type":"research","url":"https://www.gate.com/learn/articles/understanding-cega/2557"}]},{"content":"At peak, Cega reported over $10 million in total value locked and described itself as the world's third-largest decentralized exotic derivatives protocol as of mid-2024. The protocol processed over $500 million in cumulative transaction volume over its approximately two-and-a-half year operating life, according to its own announcement at the time of the acquisition. Following the November 2024 acquisition and platform sunset announcement, TVL declined sharply as deposits ceased and users were directed to withdraw. DefiLlama data indicated TVL had fallen to approximately $415,900 by the time of sunsetting. The protocol never issued a native governance or utility token, operating entirely with deposited assets (predominantly USDC).","heading":"TVL and Market Footprint","severity":"low","sources":[{"credibility":2,"name":"Cega TVL Stats and Charts — DefiLlama","type":"on_chain","url":"https://defillama.com/protocol/cega"},{"credibility":1,"name":"DeFi Protocol Cega Debuts Vault Token Market — CoinDesk","type":"news_article","url":"https://www.coindesk.com/tech/2024/09/24/defi-protocol-cega-debuts-vault-token-market-to-facilitate-seamless-investing"},{"credibility":2,"name":"DeFi Derivatives Protocol Cega Acquired, Platform to Sunset by End of Year — Blockhead","type":"news_article","url":"https://www.blockhead.co/2024/11/28/defi-derivatives-protocol-cega-acquired-platform-to-sunset-by-end-of-year/"}]},{"content":"On November 27, 2024, Cega announced it had been acquired by what it described as 'a leading platform' and would sunset its product suite by the end of 2024. The identity of the acquirer was not disclosed; Cega stated only that the acquiring entity chose to remain anonymous. No acquisition price or deal terms were made public. New deposits ceased on November 27, 2024 at 2:00 PM UTC. The protocol's dapp UI remained accessible to allow withdrawals through January 2026. Moderator and community support was discontinued after January 2025, with all subsequent usage described as self-serve. Co-founder Arisa Toyosaki stated publicly that the team's mission would continue in a different form, noting 'you may see us popping back up somewhere else.' The non-disclosure of the acquirer's identity is an opaque element, though there is no indication from available sources that this reflects adversarial intent. No user funds appear to have been lost as a result of the acquisition or wind-down process.","heading":"Acquisition and Platform Sunset","severity":"medium","sources":[{"credibility":2,"name":"DeFi derivatives protocol Cega to sunset platform by end of year following acquisition — The Block","type":"news_article","url":"https://www.theblock.co/post/328514/defi-derivatives-protocol-cega-to-sunset-platform-by-end-of-year-following-acquisition"},{"credibility":2,"name":"DeFi Derivatives Protocol Cega Acquired, Platform to Sunset by End of Year — Blockhead","type":"news_article","url":"https://www.blockhead.co/2024/11/28/defi-derivatives-protocol-cega-acquired-platform-to-sunset-by-end-of-year/"},{"credibility":3,"name":"cega_fi on X — acquisition announcement","type":"social_media","url":"https://x.com/cega_fi/status/1861791342042792417"}]},{"content":"No SEC, CFTC, or other regulatory enforcement actions against Cega, its founders, or its associated entities have been identified in available public records. The protocol operated from Singapore and did not hold any disclosed regulatory licenses in major jurisdictions. The protocol's structured product designs — particularly fixed-yield vaults marketed with percentage APY figures — exist in a regulatory grey area in many jurisdictions regarding securities classification. No public inquiry or investigation has been attributed to Cega by any regulatory body as of the available record. Alameda Research, an early investor and market maker counterparty, was subject to CFTC and DOJ actions following the FTX collapse; however, no regulatory proceedings against Cega itself resulted from that association.","heading":"Regulatory Status","severity":"low","sources":[{"credibility":1,"name":"CFTC Obtains $12.7 Billion Judgment Against FTX and Alameda","type":"regulatory","url":"https://www.cftc.gov/PressRoom/PressReleases/8938-24"}]},{"content":"Cega's products carry structured financial risk that may be non-intuitive to retail participants unfamiliar with exotic derivatives. The knock-in barrier structure provides principal protection only if underlying asset prices do not fall beyond a defined threshold (commonly 50%). If the barrier is breached, depositors can lose a portion of their principal proportional to the price decline. Advertised APYs of up to 200% on some products (such as the NFT-exclusive 'Insanic' vault) represent the maximum outcome under favorable market conditions, not a guaranteed return. Additionally, the yield component of all Bond + Options vaults is explicitly at risk in the event of market maker default. The protocol's documentation and educational materials (under the 'Cega School' series) explain these mechanics, though the complexity of exotic derivatives means ordinary retail users may not fully appreciate the embedded risks.","heading":"Product Risk Disclosures","severity":"medium","sources":[{"credibility":2,"name":"Cega School: Simplified Exotic Options — Medium","type":"official","url":"https://medium.com/cega-fi/cega-school-simplified-exotic-options-61a5c81876bf"},{"credibility":1,"name":"DeFi Protocol Cega's New Options Product Marries Gold, Ether to Offer Up to 83% Yield — CoinDesk","type":"news_article","url":"https://www.coindesk.com/business/2024/04/02/defi-protocol-cegas-new-options-product-marries-gold-ether-to-offer-up-to-83-yield"},{"credibility":2,"name":"Introduction to Exotic Options — Cega Documentation","type":"official","url":"https://docs.cega.fi/cega/products/derivatives-101/what-are-exotic-options"}]}],"sources_used":[{"credibility":2,"name":"Cega Official Website","type":"official","url":"https://www.cega.fi/"},{"credibility":2,"name":"Cega Documentation — Overview","type":"official","url":"https://docs.cega.fi/cega/products/overview/overview"},{"credibility":2,"name":"Cega Audits and Security Documentation","type":"official","url":"https://docs.cega.fi/cega/security/audits-and-security"},{"credibility":1,"name":"Cega Raises $4.3M from Dragonfly, Pantera — Business Wire","type":"news_article","url":"https://www.businesswire.com/news/home/20220308005046/en/Cega-Raises-$4.3M-from-Dragonfly-Pantera-to-Build-the-First-Exotic-Structured-Products-in-Cryptocurrency"},{"credibility":1,"name":"Cega fundraising tops $9.3M — Business Wire","type":"news_article","url":"https://www.businesswire.com/news/home/20230323005043/en/Cega-fundraising-tops-$9.3M-in-total-to-accelerate-DeFi-exotic-structured-products-on-chain"},{"credibility":1,"name":"Cega launches on Ethereum — Business Wire","type":"news_article","url":"https://www.businesswire.com/news/home/20230331005018/en/Cega-launches-on-Ethereum-introduces-new-leveraged-options-product-and-launches-trading-firm"},{"credibility":2,"name":"DeFi derivatives protocol Cega to sunset platform — The Block","type":"news_article","url":"https://www.theblock.co/post/328514/defi-derivatives-protocol-cega-to-sunset-platform-by-end-of-year-following-acquisition"},{"credibility":2,"name":"DeFi Derivatives Protocol Cega Acquired, Platform to Sunset — Blockhead","type":"news_article","url":"https://www.blockhead.co/2024/11/28/defi-derivatives-protocol-cega-acquired-platform-to-sunset-by-end-of-year/"},{"credibility":1,"name":"DeFi Protocol Cega Debuts Vault Token Market — CoinDesk","type":"news_article","url":"https://www.coindesk.com/tech/2024/09/24/defi-protocol-cega-debuts-vault-token-market-to-facilitate-seamless-investing"},{"credibility":1,"name":"DeFi Protocol Cega's Gold Rush Options Product — CoinDesk","type":"news_article","url":"https://www.coindesk.com/business/2024/04/02/defi-protocol-cegas-new-options-product-marries-gold-ether-to-offer-up-to-83-yield"},{"credibility":2,"name":"Cega's exotic DeFi derivatives expand to Arbitrum — The Block","type":"news_article","url":"https://www.theblock.co/post/238584/cega-defi-arbitrum"},{"credibility":2,"name":"Solana Options Protocol Cega Comes to Ethereum — Blockworks","type":"news_article","url":"https://blockworks.co/news/solana-options-protocol-cega-comes-to-ethereum"},{"credibility":2,"name":"Cega Shark Bull Vaults on Ethereum and Arbitrum — Blockworks","type":"news_article","url":"https://blockworks.co/news/cega-shark-bull-vaults-ethereum"},{"credibility":2,"name":"Cega, Credit and Counterparty Management — Medium","type":"official","url":"https://medium.com/cega-fi/cega-credit-and-counterparty-management-ed44915e43b1"},{"credibility":2,"name":"Cega announces partnership with Credora — Medium","type":"official","url":"https://cegafi.medium.com/cega-announces-partnership-with-credora-to-reduce-counterparty-trading-risk-85f656030c8d"},{"credibility":2,"name":"Cega TVL — DefiLlama","type":"on_chain","url":"https://defillama.com/protocol/cega"},{"credibility":2,"name":"Zellic — Cega Audit Report","type":"research","url":"https://reports.zellic.io/publications/cega"},{"credibility":2,"name":"Cega GitHub Organization","type":"official","url":"https://github.com/cega-fi"},{"credibility":2,"name":"Exclusive Interview with Arisa Toyosaki — Iolite","type":"news_article","url":"https://iolite.net/en/magazine/vol6/interview-arisa-toyosaki"},{"credibility":2,"name":"Cega on Solana — Solana Compass","type":"research","url":"https://solanacompass.com/projects/cega"},{"credibility":2,"name":"Cega School: Simplified Exotic Options — Medium","type":"official","url":"https://medium.com/cega-fi/cega-school-simplified-exotic-options-61a5c81876bf"},{"credibility":1,"name":"CFTC Obtains $12.7 Billion Judgment Against FTX and Alameda","type":"regulatory","url":"https://www.cftc.gov/PressRoom/PressReleases/8938-24"},{"credibility":3,"name":"cega_fi acquisition announcement — X","type":"social_media","url":"https://x.com/cega_fi/status/1861791342042792417"}],"summary":"Cega (cega.fi) was a decentralized exotic options and structured products protocol that operated from June 2022 through late 2024 on Solana, Ethereum, and Arbitrum. Founded by Arisa Toyosaki, a named former derivatives trader, and backed by Dragonfly Capital, Pantera Capital, and Coinbase Ventures, the protocol processed over $500 million in cumulative transaction volume without a reported user fund loss. In November 2024 Cega was acquired by an undisclosed party and wound down its public-facing product suite, urging remaining depositors to withdraw.","timeline":[{"date":"2021-12-01","event":"Cega founded by Arisa Toyosaki and co-founders, incorporated in Singapore","source":"Solana Compass / CoinDesk","source_url":"https://solanacompass.com/projects/cega"},{"date":"2022-03-08","event":"Cega raises $4.3M seed round led by Dragonfly Capital with participation from Pantera Capital, Coinbase Ventures, Alameda Research, and Solana Ventures at a $60M valuation","source":"Business Wire","source_url":"https://www.businesswire.com/news/home/20220308005046/en/Cega-Raises-$4.3M-from-Dragonfly-Pantera-to-Build-the-First-Exotic-Structured-Products-in-Cryptocurrency"},{"date":"2022-06-01","event":"Cega launches on Solana mainnet, claiming to be the first on-chain exotic derivatives protocol","source":"Medium / Cega","source_url":"https://cegafi.medium.com/cega-mainnet-launch-c57739bcba9c"},{"date":"2022-11-01","event":"Alameda Research (a Cega market maker counterparty and investor) collapses following the FTX crisis; Cega reports recovering all lent funds via ISDA contractual recourse","source":"Medium / Cega","source_url":"https://medium.com/cega-fi/cega-credit-and-counterparty-management-ed44915e43b1"},{"date":"2023-02-13","event":"Zellic completes security audit of Cega's Ethereum smart contracts; no critical vulnerabilities found","source":"Zellic / Cega Documentation","source_url":"https://docs.cega.fi/cega/security/audits-and-security"},{"date":"2023-03-23","event":"Cega raises additional $5M in a follow-on round, bringing total funding to $9.3M; Dragonfly Capital leads again with Pantera and Robot Ventures participating","source":"Business Wire","source_url":"https://www.businesswire.com/news/home/20230323005043/en/Cega-fundraising-tops-$9.3M-in-total-to-accelerate-DeFi-exotic-structured-products-on-chain"},{"date":"2023-03-31","event":"Cega launches on Ethereum mainnet and introduces Leveraged Option Vaults (LOV) product","source":"Business Wire","source_url":"https://www.businesswire.com/news/home/20230331005018/en/Cega-launches-on-Ethereum-introduces-new-leveraged-options-product-and-launches-trading-firm"},{"date":"2023-07-01","event":"Cega expands to Arbitrum, completing its multi-chain deployment across Solana, Ethereum, and Arbitrum","source":"The Block","source_url":"https://www.theblock.co/post/238584/cega-defi-arbitrum"},{"date":"2024-04-02","event":"Cega launches Gold Rush product combining gold-backed token XAUT and ETH with up to 83% advertised yield","source":"CoinDesk","source_url":"https://www.coindesk.com/business/2024/04/02/defi-protocol-cegas-new-options-product-marries-gold-ether-to-offer-up-to-83-yield"},{"date":"2024-09-24","event":"Cega launches Vault Token Market (VTM), allowing users to trade vault positions for liquidity before vault expiry","source":"CoinDesk","source_url":"https://www.coindesk.com/tech/2024/09/24/defi-protocol-cega-debuts-vault-token-market-to-facilitate-seamless-investing"},{"date":"2024-11-27","event":"Cega announces acquisition by an undisclosed 'leading platform'; halts new deposits and begins platform wind-down with a sunset deadline of end-of-year 2024","source":"The Block","source_url":"https://www.theblock.co/post/328514/defi-derivatives-protocol-cega-to-sunset-platform-by-end-of-year-following-acquisition"}]},"v":1}

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