> ## Documentation Index
> Fetch the complete documentation index at: https://docs.canton.network/llms.txt
> Use this file to discover all available pages before exploring further.

# Splice.DSO.AmuletPrice

> Documentation for Splice.DSO.AmuletPrice

Templates and code for the SVs to agree on a amulet price using median-based voting.

Every sv can change its desired amulet price at any time they like provided they wait at least one tick duration (2.5 minutes by default) between changes.

New `OpenMiningRounds` are always openened with the median of the amulet prices voted for by the SVs.

## Templates

<div id="type-splice-dso-amuletprice-amuletpricevote-96658">
  **template** AmuletPriceVote
</div>

> A vote by an SV for their desired amulet price.
>
> Signatory: dso
>
> | Field         | Type                                                                                                                                                                                        | Description                                                                                                  |
> | ------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------ |
> | dso           | [Party](/appdev/reference/daml-standard-library/prelude#type-da-internal-lf-party-57932)                                                                                                    |                                                                                                              |
> | sv            | [Party](/appdev/reference/daml-standard-library/prelude#type-da-internal-lf-party-57932)                                                                                                    |                                                                                                              |
> | amuletPrice   | [Optional](/appdev/reference/daml-standard-library/prelude#type-da-internal-prelude-optional-37153) [Decimal](/appdev/reference/daml-standard-library/prelude#type-ghc-types-decimal-18135) | Set to None for new svs, but defined thereafter.                                                             |
> | lastUpdatedAt | [Time](/appdev/reference/daml-standard-library/prelude#type-da-internal-lf-time-63886)                                                                                                      | The last time this price was updated. Tracked to limit svs from changing their vote more than once per tick. |
>
> * **Choice** Archive
>
>   Controller: dso
>
>   Returns: ()
>
>   (no fields)

## Functions

<div id="function-splice-dso-amuletprice-fetchmedianamuletprice-30507">
  fetchMedianAmuletPrice
  : [Party](/appdev/reference/daml-standard-library/prelude#type-da-internal-lf-party-57932) -> \[[Party](/appdev/reference/daml-standard-library/prelude#type-da-internal-lf-party-57932)] -> \[[ContractId](/appdev/reference/daml-standard-library/prelude#type-da-internal-lf-contractid-95282) AmuletPriceVote] -> [Update](/appdev/reference/daml-standard-library/prelude#type-da-internal-lf-update-68072) [Decimal](/appdev/reference/daml-standard-library/prelude#type-ghc-types-decimal-18135)
</div>

<div id="function-splice-dso-amuletprice-median-98146">
  median
  : \[[Decimal](/appdev/reference/daml-standard-library/prelude#type-ghc-types-decimal-18135)] -> [Decimal](/appdev/reference/daml-standard-library/prelude#type-ghc-types-decimal-18135)

  See [https://en.wikipedia.org/wiki/Median](https://en.wikipedia.org/wiki/Median)
</div>