Optimism
Summary
Optimism is an Ethereum Layer 2 optimistic rollup network operated by OP Labs PBC, with ecosystem governance stewarded by the Optimism Foundation. Launched on mainnet in January 2021, it issues the OP governance token and anchors the Superchain — a shared framework that powers Base, Zora, Mode, and more than two dozen other OP Stack-based chains. The network has a credible technical pedigree and documented decentralization progress, but retains meaningful centralization in its sequencer and upgrade-key infrastructure, and has experienced several notable security incidents.
Connected Entities
1 entities · 10 linked investigations- + 8 more
Timeline(18 events)
2019-01-01
Plasma Group non-profit founded by Jinglan Wang and Karl Floersch to advance Ethereum scaling research.
CoinDesk — Optimism's Jing Wang and the Widely Adopted OP Stack2021-01-01
OP Mainnet launches on Ethereum mainnet as an optimistic rollup.
Eco Support — What Is Optimism?2022-02-10
Jay Freeman (saurik) discloses 'Unbridled Optimism' critical vulnerability in OVM 2.0, allowing unlimited ETH minting. Optimism awards a $2,000,042 bug bounty.
Jay Freeman — saurik.com2022-03-16
OP Labs PBC closes $150 million Series B co-led by Paradigm and a16z at a $1.65 billion valuation.
CoinDesk2022-05-31
OP token launched; Optimism Collective and bicameral governance (Token House + Citizens' House) announced.
Optimism Blog — Introducing the Optimism Collective2022-06-01
Airdrop 1 distributes 200 million OP tokens to approximately 250,000 eligible addresses; 17,000 sybil addresses removed beforehand.
Optimism Documentation — Airdrop 12022-06-09
Wintermute provides incorrect L1 wallet address to Optimism; attacker deploys matching Gnosis Safe on L2 and steals 20 million OP tokens. Approximately 17 million eventually returned.
CoinDesk2023-01-01
Airdrop 2 distributes 11.7 million OP tokens to 307,965 governance-participating addresses.
Optimism Documentation2023-09-01
Airdrop 3 distributes 19.4 million OP tokens to 31,870 addresses focused on governance participation.
Boxmining — Optimism OP Token Airdrop Guide2023-12-01
Security Council's 14 inaugural members ratified by governance vote; upgrade key custody transferred to the 2-of-2 nested multisig structure.
Optimism Blog — Introducing the Security Council2024-02-01
Delta network upgrade introduces Span Batches, reducing data costs across OP Chains.
Optimism 2024 Year in Review2024-03-01
Ecotone upgrade activates EIP-4844 blob data availability following Ethereum's Dencun upgrade, reducing OP Mainnet transaction fees by approximately 90%.
Messari — Optimism Q2 2024 Brief2024-03-22
Offchain Labs discloses two fraud proof vulnerabilities to OP Labs; both are patched on testnet by April 25, 2024 before public disclosure.
Unchained — Optimism Patches Issues With Testnet Fraud Proofs2024-06-10
Permissionless fault proofs activated on OP Mainnet; OP Mainnet achieves Stage 1 classification on L2BEAT.
Optimism 2024 Year in Review2024-10-01
Airdrop 5 distributes 10.3 million OP tokens to approximately 54,700 Superchain users.
The Block — Optimism rolls out fifth airdrop2025-07-21
Optimism Foundation and OP Labs PBC meet with SEC Crypto Task Force to discuss OP Stack and crypto asset regulation frameworks.
SEC.gov — Crypto Task Force Meeting Memo2026-01-22
Optimism DAO begins voting on proposal to allocate 50% of net sequencer revenue to monthly OP token buybacks; vote contested among delegates.
CoinDesk — Optimism community begins vote on OP token buybacksDecision Log
- hash: FjfhRM2aSHFQ3beJ39Z9aY2URzM6RhApLtoEw3yfDKK2
This investigation is cryptographically anchored to the Solana blockchain and source URLs are archived via the Internet Archive.
model: claude-code-investigator
generated: 5/31/2026, 5:41:27 PM
last updated: 5/31/2026, 5:41:34 PM
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