# ETH San Francisco 2022

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Developers pick either two options below when building their Findora EVM dApp

* `Best use of Privacy Routing SDK`
* `Best Use of zkDID SDK`

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Single Winner earns **$5,000 🎉**
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Note: Privacy Routing SDK can currently only be used on the Findora **Forge** Testnet. See [network settings](/network-settings/network-settings.md) for RPC details and request **Forge** EVM testnet `FRA` tokens [here](/general-user-materials/request-fra-testnet.md).
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## Findora Private Transactions

Findora’s Privacy Routing SDK will allow developers to mask certain attributes from on-chain transactions: sender/receiver address, asset type, and asset amount. Using the SDK, developers can send private transactions from one Findora EVM address to another Findora EVM address.

#### Learn more about the Privacy Routing SDK

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[ZkRouting SDK](/developers/developer-sdks/privacy-routing-sdk.md)
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## Zero-Knowledge Decentralized ID (zkDID)

Findora’s `zkdid-js` SDK consists of a collection of APIs to create decentralized identifiers (DIDs), credentials and proofs to enable DID holders to prove credential data (i.e. private information) about themselves in a [zero-knowledge](https://hackernoon.com/eli5-zero-knowledge-proof-78a276db9eff) (zk) manner.

Zero-knowledge refers to the ability to cryptographically verify data without disclosing the exact credential value (i.e. cryptographically enable the verification that a DID holder’s credential contains credit score is above 700 — without revealing the exact number to the verifier).

For a conceptual overview of DIDs, credentials and the stakeholders in the credentialing and verification processes, visit the [zkDID and Credentials](/developers/resources/events/eth-san-francisco-2022/zkdid-and-credentials.md) modules section of Findora’s documentation. Also, please see the official [W3C DID specification](https://www.notion.so/zkDID-Documentation-a-Modules-zkDID-Credentials-695f80687ec94d2fb32b3159f4ca945f).

**Learn more about the zkDID SDK**

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[zkDID SDK Installation](/developers/developer-sdks/zkdid-sdk/zkdid-sdk-installation.md)
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## Support & Resources

Findora developers will be attending the onsite event in San Francisco to help support the hackathon participants. Additionally, developers may use the Findora Discord channel to ask questions and speak to a specialist from the team.

* [Discord support](https://findora.org/discord) (#dev-chat channel)
* [Findora EVM network settings](/network-settings/network-settings.md)
* [Testnet FRA faucet](/general-user-materials/request-fra-testnet.md)
* [Subgraph deployment](/developers/evm-tools-and-tutorials/the-graph.md)


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