Builders of Arbitrum, the leading optimistic rollup by many TVL measures.

Bookmark exchange and dapp URLs. Ignore search ads and Discord DMs with links.

LayerZero's Omnichain Fungible Token standard, a burn-and-mint representation across chains.

Open, high, low, close prices over a fixed interval, drawn as a candlestick on price charts.

When price and open interest move in opposite ways, hinting at short or long covering.

A cascade of liquidations that wipes open interest and often marks a local extreme.

OKJ is a centralized exchange listed with country Japan.

A large global exchange for spot and derivatives, also active in Web3 wallets and on-chain products.

OKX's self-custody wallet and DeFi browser alongside its CEX.

Reading balances, flows, and contract events to understand holders and behavior.

Credentials, names, or soulbound tokens used as a durable persona across apps.

Lending pools that function like crypto-native money markets for stables and blue chips.

Publishing or settling fund net asset value through on-chain oracles or issuer updates for tokenized funds.

Ripple's product that uses XRP as a bridge asset for certain corridors instead of pre-funded nostro accounts.

A service that turns bank money into crypto, usually a CEX, broker, or payment app.

A transfer that stays inside one institution's ledger, settling without an external rail.

A real-world-asset issuer known for tokenized U.S. Treasury products.

Ondo Global Markets is a RWA protocol active on Ethereum, Binance, Solana. Stocks on chain

Ondo Stocks is a centralized exchange listed with country British Virgin Islands.

One Trading is a centralized exchange listed with country Italy.

A large alleged pyramid scheme marketed as cryptocurrency education and coin, prosecuted across multiple countries.

OnRe is a RWA protocol active on Solana. Connecting on-chain capital to real-world reinsurance risk — unlocking stable, uncorrelated returns that are liquid, composable and…

Builders of Optimism and contributors to the OP Stack Superchain.

A Bitcoin opcode used to attach a small data payload, the ancestor of many inscription schemes.

The number of derivative contracts still outstanding. Rising open interest means new risk is entering.

Client code you can audit. Still verify downloads and reproduce builds when possible.

The largest NFT marketplace by historical volume, a Web2 company on top of on-chain transfers.

The NFT marketplace company that dominated 2021 volume and later fought Blur on fees and royalties.

OpenTrade is a RWA protocol active on Avalanche, Ethereum, Plume Mainnet. Fintechs around the world use OpenTrade to power safe, compliant stablecoin yield products.

The standard library and audit shop behind widely used contract patterns and upgrades tooling.

Losses from compromised signer devices, fake UI, or social engineering rather than a smart-contract bug. Central to Bybit-era exchange thefts.

The node runners that a restaking or DVT protocol actually uses to produce duties.

An Ethereum scaling ecosystem that develops the OP Stack; OP Mainnet is a particular network built with that stack, and other deployments have their own network configuration.

Optimism Bridge is a Canonical Bridge protocol active on Ethereum, Base, PGN. Bridge between Optimism and Ethereum

A scaling system that publishes transaction data and accepts state claims subject to a dispute process, allowing incorrect claims to be challenged before settlement under the protocol's rules.

A system design in which users or wallets can choose between transaction paths that reveal different amounts of information, making privacy depend on both protocol rules and actual usage.

Contracts that give the right, but not the obligation, to buy (call) or sell (put) at a strike price.

Options is a market sector used to group crypto assets with similar use or design.

A service that brings off-chain data (prices, scores, randomness) onto a chain in a form contracts can read.

Oracle is a market sector used to group crypto assets with similar use or design.

Manipulating a price feed to borrow, liquidate, or mint unfairly.

A configured update interval that can trigger a price feed report even when the observed price has not crossed its deviation threshold.

Moving a spot or TWAP feed so a protocol misprices collateral or a liquidations fire wrongly.

Orca DEX is a Dexs protocol active on Solana, Eclipse. AMM

A charting zone where large orders are believed to have been filled, used in ICT-style crypto TA.

A list of resting bids and asks on an exchange. The engine matches incoming orders against that book.

The 2023 Bitcoin inscription wave that brought NFT-like artifacts and BRC-20s to Bitcoin.

OSL Exchange is a CEX protocol active on Bitcoin, Ethereum, Tron. OSL Digital Securities is Hong Kong’s first and most established SFC-licensed and insured digital asset exchange.

Over-the-counter trading arranged away from a public book, used by large tickets that would move a screen.

Ourbit is a CEX protocol active on Bitcoin, Solana, Binance. The true degen exchange. The ONLY exchange with culture

Ondo's tokenized U.S. Treasuries product shorthand used in RWA dashboards.

A concentrated LP whose range no longer covers the price, so it earns no fees and sits in one asset.

A Bitcoin wallet standard that describes scripts so backups restore the right address types.