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(refactor)-sunset-solana push oracle
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‎pages/price-feeds/how-pyth-works.mdx

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# Design Overview
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Pyth is a protocol that allows market participants to publish pricing information on-chain for others to use. The protocol is an interaction between three parties:
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Pyth is a protocol that allows market participants to publish pricing information on-chain for others to use.
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The protocol is an interaction between three parties:
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1. _Publishers_ submit pricing information to Pyth's oracle program. Pyth has multiple data publishers for every product to improve the accuracy and robustness of the system.
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1. _Publishers_ submit pricing information to Pyth's Oracle program.
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Pyth has multiple data publishers for every product to improve the accuracy and robustness of the system.
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2. Pyth's _oracle program_ combines publishers' data to produce a single aggregate price and confidence interval.
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3. _Consumers_ read the price information produced by the oracle program.
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3. _Consumers_ read the price information produced bsy the Oracle program.
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Pyth's oracle program runs simultaneously on both Solana mainnet and [Pythnet](how-pyth-works/pythnet.md).
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Each instance of the program is responsible for its own set of price feeds.
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[Solana Price Feeds](solana-price-feeds.md) are available for use by Solana protocols.
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In this case, since the oracle program itself runs on Solana, the resulting prices are immediately available to consumers without requiring any additional work.
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[Pythnet Price Feeds](pythnet-price-feeds.md) are available on 12+ blockchains.
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Pyth's oracle program runs on [Pythnet](how-pyth-works/pythnet.md).
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The prices constructed on Pythnet are transferred [cross-chain](how-pyth-works/cross-chain.md) to reach consumers on these blockchains.
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In both cases, the critical component of the system is the [oracle program](how-pyth-works/oracle-program.md) that combines the data from each individual publisher.
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This program maintains a number of different [Solana accounts](how-pyth-works/account-structure.md) that list the products on Pyth and their current price data.
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Publishers publish their price and confidence by interacting with the oracle program on every slot.
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This program maintains a number of different [Pythnet accounts](how-pyth-works/account-structure.md) that list the products on Pyth and their current price data.
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Publishers publish their prices and confidence by interacting with the Oracle program on every slot.
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The program stores this information in its accounts.
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The first price update in a slot additionally triggers [price aggregation](how-pyth-works/price-aggregation.md), which combines the price data from the previous slot into a single aggregate price and confidence interval.
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This aggregate price is written to the Solana account where it is readable by other on-chain programs and available for transmission to other blockchains.
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This aggregate price is written to the Pythnet account where it is readable by other on-chain programs and available for transmission to different blockchains.

‎pages/price-feeds/price-feed-ids.mdx

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# Price Feed IDs
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Every Pyth Price Feed has a unique ID, representing the specific pair of assets being priced (e.g., BTC/USD).
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Every Pyth Price Feed has a unique ID, representing the specific pair of assets priced (e.g., BTC/USD).
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Every price update is tagged with the corresponding price feed ID.
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Applications need to store the IDs of the feeds they wish to read.
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However, the ids may be represented in different formats (e.g., hex or base58) depending on the blockchain.
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Price feeds also have different ids in the Stable and Beta channels.
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However, depending on the blockchain, the IDs may be represented in different formats (e.g., hex or base58).
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Price feeds also have different IDs in the Stable and Beta channels.
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The full catalog of price feeds is listed on the [pyth.network website](https://pyth.network/price-feeds/).
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The [Price Feed ID reference](https://pyth.network/developers/price-feed-ids) also lets you identify a feed's ID in your chosen ecosystem.
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To use a price feed on-chain, look up its ID using these page, then store the feed id in your program to use for price feed queries.
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## Solana Price Feed Accounts
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On Solana, each feed additionally has a collection of **price feed accounts** containing the feed's data.
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The addresses of these accounts are programmatically derived from the feed id and a shard id, which is simply a 16-bit number.
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See [How to Use Real-Time Data on Solana](price-feeds/use-real-time-data/solana#write-frontend-code) for more information on price feed accounts.
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To use a price feed on-chain, look up its ID using these pages, then store the feed ID in your program to use for price feed queries.

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