A distributed validator technology project for resilient Ethereum validators.

The Office of the Comptroller of the Currency, the U.S. national-bank regulator, which has issued guidance on crypto custody and stablecoin reserves.

An international framework for collecting and exchanging information about specified crypto-asset transactions for tax transparency.

Oracle-extractable value. MEV that comes from being first to update a price and liquidate.

The U.S. Office of Foreign Assets Control. It publishes sanctions lists that exchanges and mixers have been charged with violating.

Moving collateral at a custodian so trades can net without depositing to an exchange wallet.

A service that turns crypto back into bank money.

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

TRUMP is a politics-themed digital coin built on the Solana blockchain that uses the brand of Donald Trump to foster a community-driven ecosystem.

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.

OG.meme (OGME) is a crypto asset primarily associated with solana.

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.

Oil Rig (OIL) is a crypto asset primarily associated with solana.

OKX, formerly known as OKEx, is a Seychelles-based cryptocurrency exchange and derivatives exchange that provides a platform for trading various instruments such as spot and derivative

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.

$OHM is a community-owned, decentralized and censorship-resistant reserve currency that is asset-backed, deeply liquid and used widely across Web3.

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.

The Ondo Foundation was founded in 2022 as an independently governed and nonprofit Cayman Islands Foundation Company with no beneficial owners.

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

OUSG is a tokenized short-term US Treasury bills ETF, overseen and managed by Ondo Capital Management, a subsidiary of Ondo Finance.

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

Ondo US Dollar Yield (USDY) is a digital asset designed to provide users with a stable yield on their investments in US dollars.

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.

OneFinity (ONE) is a crypto asset primarily associated with elrond.

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…

Licensed to deploy digital assets as insurance collateral, OnRe provides a new class of investors with direct access consistent real-world returns.

Onyx is an infrastructure for a multi-asset, scalable, and cryptographically secure ledger.

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.

OpenGradient is the Network for Open Intelligence — a decentralized infrastructure network designed to host, inference, and verify AI models at scale.

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, Plume Mainnet, Ethereum. 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 rollup that assumes transactions are valid and uses a fraud-proof window so watchers can challenge a lie.

Systems like Zcash where shielded pools exist but transparent addresses remain common.

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.

A scheme that numbers satoshis and inscribes data on Bitcoin, used for Bitcoin-native NFTs and BRC-20s.

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

OREX (ORX) is a crypto asset primarily associated with binance-smart-chain.

What is OriginTrail (TRAC)? OriginTrail is an ecosystem building a trusted knowledge infrastructure for artificial intelligence (AI).

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.

A loan that requires collateral worth more than the debt, the usual DeFi design because on-chain credit scores are weak.

Overlay Protocol (OVL) is a crypto asset primarily associated with binance-smart-chain.

OwnershipCoin (OC) is a crypto asset primarily associated with ton.

Money market on Solana

What is Ozone Chain Ozone Chain is the world’s first Quantum Resistant Blockchain that has integrated bleeding edge quantum security technologies in its design.