# BrightID sponsorship use case: Gitcoin

The following steps were used to top up Gitcoin's BrightID sponsorships as seen in the [BrightID app dashboard](https://apps.brightid.org/).

1. Receives fund to buy Sp or Subs
a. Receive GTC
b. Swap GTC for Dai, because it's better for buying Sp and Subs--especially on IDChain.
2. Buy Sp or Subs. Links to buy Sp and Subs on mainnet and IDChain are on the [Sponsorship Dashboard](https://sp.brightid.org/).

Interacting with Sp and Subs is much cheaper on IDChain, but prices and availability of Sp and Subs may differ between mainnet and IDChain.

## Obtain Eidi
The gas token on IDChain is called Eidi and free supply is available from the [Eidi faucet](https://idchain.one/begin).

## Bridge assets
If Subs or Sp were purchased on mainnet, bridge them. If either Subs or Sp will be purchased on IDChain, bridge Dai. Use the [IDChain omnibridge](https://omni.idchain.one).

## Convert Sp or Subs (if necessary)
Mainnet Subs or Sp bridged in the previous step need to be converted to IdSp or IdSubs. This can be done from the [sponsorship dashboard](https://sp.brightid.org) after switching networks to IDChain.


## Using Sp
1. Assign Sp (on Mainnet) or IDSp (on IDchain) using the "assign" button on the [sponsorship dashboard](https://sp.brightid.org). Select "Gitcoin" as the app from the drop down menu.

## Using Subs
Subs are a stream of sponsorships (Sp), with new Sp available to be claimed immediately and every month thereafter for 6 years at a rate that increases every year. Use the "activate" and "claim" buttons to convert Subs into Sp.

See the [sponsorship dashboard instructions](https://www.brightid.org/sponsorships) for more information.