Grant application

Zcash (Both Transparent & Shielded Address) Support for Keystone Hardware Wallet

Evaluation snapshot

Request at a glance

Applicant: Keystone Team
Requested: -
Funding in payment ledger: $180,900.00May reflect a partial approval; excludes refunds and reimbursements.
Status: Approved
Review context: Forum discussion linked1 committee record linked

FPF source evidence

Milestone and disbursement ledger

Read-only milestone and disbursement fields normalized from the FPF grants ledger.

4 ledger rows

These ledger rows are FPF source evidence. They do not by themselves prove that a progress update was accepted, a payment request was approved, or an on-chain settlement was completed. Named rows can also describe reimbursements, returned funds, or other ledger adjustments.

Integration · Monthly

1

Recorded row amount$30,000.00

Estimate: Not recorded
FPF “Paid Out” date: 4/29/2025
FPF “ZEC Disbursed”: 849.14 ZEC
FPF “USD Disbursed”: Not recorded
FPF “ZEC/USD” rate: $35.33 / ZEC
FPF ledger status: Completed

Integration

2

Recorded row amount$60,000.00

Estimate: Not recorded
FPF “Paid Out” date: 4/29/2025
FPF “ZEC Disbursed”: 1,698.27 ZEC
FPF “USD Disbursed”: Not recorded
FPF “ZEC/USD” rate: $35.33 / ZEC
FPF ledger status: Completed

Integration

3

Recorded row amount$60,000.00

Estimate: Not recorded
FPF “Paid Out” date: 4/29/2025
FPF “ZEC Disbursed”: 1,698.27 ZEC
FPF “USD Disbursed”: Not recorded
FPF “ZEC/USD” rate: $35.33 / ZEC
FPF ledger status: Completed

Integration

4

Recorded row amount$30,900.00

Estimate: Not recorded
FPF “Paid Out” date: 4/29/2025
FPF “ZEC Disbursed”: 874.61 ZEC
FPF “USD Disbursed”: Not recorded
FPF “ZEC/USD” rate: $35.33 / ZEC
FPF ledger status: Completed

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Latest committee record

Approved8/19/2024

Data quality and provenanceSource matching, linked-record coverage, and reconciliation diagnostics

Source coverage

Operational context for tracing how this canonical record was assembled.

Source stateSheet only

GitHub-Sheet matchNo GitHub match

Primary forum1

Supporting forum0

GitHub labels0

Decision notes1

GitHub workflow labels

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Decision history

1 meeting note linked

Approved8/19/2024

Keystone Hardware Wallet Support

Approved

- The Keystone Team requests $180,900 to integrate Zcash support into their hardware wallet, including both transparent and shielded addresses. The project involves enabling Keystone to handle Zcash transactions and developing an SDK for Zashi (and other) wallet integration. The funds will cover development, research, and sample devices for testing, with milestones set for completing each component by October 2024. The Keystone team has been in touch with the ECC development team, and ECC is comfortable that the integration is possible in the defined time frame from a technical standpoint. Michael has misgivings about the scale of their user base compared to competitors. He would vote to reject - it’s a research grant not a hardware grant… Brian said the platform is an interesting user case scenario, he is hesitant about the user base however he is in favor of approval. Gguy would vote to approve because a hardware wallet would create competition and get other wallets to support Zcash. Given the fraught history with hardware grants, Amber would be reluctant to approve except that ECC devs are in favor and that’s possibly a critical difference between success and failure. Jason agrees with Amber. Jason likes that it has the support of ECC’s leadership and core engineering teams, and he thinks the Keystone team will be engaged with devs and the community. Jason also mentioned possible Zashi integration, and the possibility of product marketing support from ECC. Jason approves; he thinks the community should have multiple hardware wallet options that support shielded ZEC. Brian said a significant difference is Ledger is focused on working on a desktop wallet while Keystone wallet would be useable for mobile wallets right out of the gate. ZCG is including a condition that Least Authority review the SDK and concerns addressed before final payout. Approved 4-1. Integration category, monthly updates.

Confidence: 100%
Match method: Direct Source Url
Minutes: Zcash Community Grants Meeting Minutes 8/19/2024

Open meeting minutes Open referenced proposal

Forum links

1 primary, 0 supporting

Primary forum thread

Keystone Hardware Wallet Support Grant Application

Hello Zcash fams, My name is Lixin, CEO of Keystone, a leading hardware wallet provider dedicated to ensuring the highest standards of security and user experience in the cryptocurrency space. Website: https://keyst.one/ Twitter: https://x.com/KeystoneWallet At Keystone, we believe in the ...

Confidence: 100%
Forum URL: https://forum.zcashcommunity.com/t/keystone-hardware-wallet-support-grant-application/48508

Open forum thread

Application source evidence

Primary GitHub, Sheet, and other non-forum source records.

Google Sheet Row

Zcash (Both Transparent & Shielded Address) Support for Keystone Hardware Wallet

Date Submitted: 8/6/2024 | Proposal Title: Zcash (Both Transparent & Shielded Address) Support for Keystone Hardware Wallet | Applicant(s): Keystone Team | Grant Platform Link: https://zcashgrants.org/gallery/25215916-53ea-4041-a3b2-6d00c487917d/47175676/ | Forum Link: https://forum.zcashcommunity.c

Confidence: 100%
Source ID: 1FQ28rDCyRW0TiNxrm3rgD8ai2KGUsXAjPieQmI1kKKg:1164534734:grant-platform:aa267583a1129a0b287bfe335e73798b9657c48ebb4f8b76370a488806bf1d34

Open source record

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Google Sheet Row

Zcash (Both Transparent & Shielded Address) Support for Keystone Hardware Wallet

Confidence: 100%
Source ID: 1FQ28rDCyRW0TiNxrm3rgD8ai2KGUsXAjPieQmI1kKKg:803214474:row:390

Open source record

Google Sheet Row

Zcash (Both Transparent & Shielded Address) Support for Keystone Hardware Wallet

Confidence: 100%
Source ID: 1FQ28rDCyRW0TiNxrm3rgD8ai2KGUsXAjPieQmI1kKKg:803214474:row:391

Open source record

Google Sheet Row

Zcash (Both Transparent & Shielded Address) Support for Keystone Hardware Wallet

Confidence: 100%
Source ID: 1FQ28rDCyRW0TiNxrm3rgD8ai2KGUsXAjPieQmI1kKKg:803214474:row:392

Open source record

Google Sheet Row

Zcash (Both Transparent & Shielded Address) Support for Keystone Hardware Wallet

Confidence: 100%
Source ID: 1FQ28rDCyRW0TiNxrm3rgD8ai2KGUsXAjPieQmI1kKKg:803214474:row:393

Open source record