CDR #057; unshETH | Price Feed on Arbitrum

Proposals CDRs - Custom Delivery Requests
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INTRODUCTION

Protocol: unshETH

Integration: unshETH is a diversified liquid staked ETH basket that earns staking ETH yield and swap fees, all wrapped in a single ERC-20 token.

REQUEST INFORMATION

Assets

Following assets will be included in the Oracle:

Asset Ticker Asset Blockchain Asset Address Asset Markets Overview Comments
unshETH/ETH Arbitrum 0x0Ae38f7E10A43B5b2fB064B42a2f4514cbA909ef unshETH Asset Information Asset to be denominated in ETH

Methodology

  • Moving Average Price with Interquartile Range (MAIR) will be used to calculate the price for the assets. Learn more about it here
  • 2% deviation threshold for updates trigger will be applied for each asset
  • 120 secs update frequency check will be applied
  • 24-hour update frequency will be added for each asset if there are no deviation-based updates

DELIVERY INFORMATION

Delivery Method Oracle on Arbitrum Goerli
Is testnet deployment required? Yes
Delivery Estimate 10 days
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Thank you for requesting a data feed via DIA CDR. We confirm the CDR specifications were requested correctly. Find the oracle information below:

Oracle

The oracle is deployed and can be accessed here.

You can query for assets by calling the read function getValue() with parameters such as “unshETH/USD”. It will return two values:

  1. The price of the asset queried with 8 decimals
  2. The unix timestamp of the last update

You can see Solidity and Vyper code integration examples here or use a dedicated DIA oracles integration library described in detail here.

Funding

Each deployed oracle has a separate gas wallet which is the only entity allowed to update oracle values based on selected parameters. To find out more information on how it works, visit the following link.

Please make sure to top up the gas wallet, as we only put in some gas to deploy and start the oracle.

Gas Wallet address: 0x390f390ba22f6dba8cd2774cb4e7cdb21c69cc49

Markets

You can view the markets included for each feed by pressing on a link to DIA App in the deployed assets list:

  1. Arbitrum-0x0Ae38f7E10A43B5b2fB064B42a2f4514cbA909ef

Note: DIA uses Blockchain-Address querying formatting to ensure asset selection precision (token symbols might duplicate)

You can also query current asset prices and find other market information on the asset by using the DIA API as described here.

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