Publishers & chains

Two networks meet in the middle of Pyth. On the data side, the publishers — the trading firms and exchanges that sign their prices and feed the oracle. On the consumer side, the chains — every blockchain where the signed prices land and become readable by smart contracts.

The publishers

Over 138 institutions publish to Pyth. The list reads like the directory of any serious trading floor: prop shops, market makers, top-five exchanges. A few you may recognize:

• · Jane Street
• · Cboe
• · Binance
• · OKX
• · Bybit
• · Wintermute
• · Two Sigma
• · Optiver
• · Susquehanna (SIG)
• · DRW
• · Jump Trading
• · Flow Traders
• · GSR
• · Galaxy Digital
• · Cumberland
• · Genesis
• · QCP Capital
• · Auros
• · BlockFills
• · Folkvang
• · Amber Group

And many more, including regional exchanges and crypto-native firms. Each publisher quotes the markets it knows. A US options firm publishes equities. A crypto market-maker publishes spot pairs. Together they cover the catalog.

The chains

Pyth lives on more than 100 chains. The map keeps growing — every credible new L2 ships with a Pyth contract on day one because the team has reduced integration on a new chain to a few days of work.

How a new chain gets added

1. The team writes (or audits) the Pyth contract for that chain's VM.
2. Wormhole adds a connection between Pythnet and the new chain.
3. A keeper service is configured to forward updates on-demand.
4. The chain shows up in the docs and feed IDs are live.

The same 32-byte feed IDs become readable on the new chain without any change on the consumer side. If a feed exists on Ethereum, it exists everywhere.