# UMIP 85 -Add R3\_10H\_TWAP and R3\_30D\_GM as supported price identifiers

**URL:** <https://discourse.uma.xyz/t/umip-85-add-r3-10h-twap-and-r3-30d-gm-as-supported-price-identifiers/1496>\
**Category:** technical UMIPs\
**Created:** [March 2, 2022, 2:03pm UTC](https://discourse.uma.xyz/t/umip-85-add-r3-10h-twap-and-r3-30d-gm-as-supported-price-identifiers/1496 "2022-03-02T14:03:29Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Mhairi](https://yyz2.discourse-cdn.com/flex032/user_avatar/discourse.uma.xyz/mhairi/32/48_2.png) [@Mhairi](https://discourse.uma.xyz/u/Mhairi)\
**Post date:** [March 2, 2022, 2:03pm UTC](https://discourse.uma.xyz/t/umip-85-add-r3-10h-twap-and-r3-30d-gm-as-supported-price-identifiers/1496/1 "2022-03-02T14:03:29Z")

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This UMIP will reference a synthetic token to be created with this price identifier.  
This token will be referred to as ‘R3’ (Rai Redemption Rate) and will represent the token that tracks these identifiers.

The DVM should support price requests for the R3\_10H\_TWAP and R3\_30D\_GM price indices.

The DVM should support requests for a price that resolves to either the 30 day geometric mean (R3\_30D\_GM) or  
a 10-hour Time-Weighted Average Price (R3\_10H\_TWAP) of RAI redemption rate coefficient APR.

> <https://github.com/UMAprotocol/UMIPs/blob/master/UMIPs/umip-85.md>