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Grant application

Zcash Privacy Capsule (ZPC)

Evaluation snapshot

Request at a glance

Applicant
orb
Requested
$46,400
Status
Declined
Review context
Forum discussion linked2 committee records linked

FPF source evidence

Milestone and disbursement ledger

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

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.

No normalized FPF milestone or disbursement rows are linked to this application yet. The application and its other source evidence remain available below.
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Workflow signals
πŸ“‹ Grant ApplicationπŸ‘€ Ready For ZCG Review❌ Grant Declined
Latest committee record
Declined6/8/2026

Applicant proposes a client-side encrypted vault built on Zcash combining three workflows: proof-of-existence timestamping via Zcash memo anchoring, encrypted sealed capsules with client-side keys, and time-based release/deadman switch mec…

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

Source coverage

Operational context for tracing how this canonical record was assembled.
Source stateGitHub + Sheet
GitHub-Sheet match100%
Primary forum1
Supporting forum1
GitHub labels3
Decision notes2

GitHub workflow labels

3 labels captured as structured grant attributes
πŸ“‹ Grant Application
Category
Intake
Status
Grant Application
Milestone
-
Observed
5/29/2026
Open GitHub issue
πŸ‘€ Ready For ZCG Review
Category
Review
Status
Ready For Zcg Review
Milestone
-
Observed
5/29/2026
Open GitHub issue
❌ Grant Declined
Category
Decision
Status
Declined
Milestone
-
Observed
5/29/2026
Open GitHub issue

Decision history

2 meeting notes linked
Declined6/8/2026

Zcash Privacy Capsule

Declined async

Applicant proposes a client-side encrypted vault built on Zcash combining three workflows: proof-of-existence timestamping via Zcash memo anchoring, encrypted sealed capsules with client-side keys, and time-based release/deadman switch mechanisms β€” targeting journalists, lawyers, compliance teams, and researchers. Requesting $46,400. Artkor- The project’s goal of proving document existence at a specific time could already be achieved by hashing files publicly. Some ideas in the proposal may be useful, but I would expect them to be implemented in ZODL, as the wallet’s developers have already indicated this direction. I see no need for separate funding for this work. Zerodartz- Without having it implemented in wallets I can’t see many users starting to use this tool on its own. Hanh- The off chain storage solution has the same issues as other ones. There is no incentive to store your doc aside from storing it yourself. decentralistdan: reject, no clear use case and lack of wallet support for the implementation Declined async- The committee rejected this proposal due to a lack of a clear use case and concerns regarding the implementation.

Confidence
100%
Match method
Direct Source Url
Minutes
Zcash Community Grants Meeting Minutes 6/8/2026
Remains Open5/25/2026

Zcash Privacy Capsule

Remains open

Applicant proposes a client-side encrypted vault built on Zcash combining three workflows: proof-of-existence timestamping via Zcash memo anchoring, encrypted sealed capsules with client-side keys, and time-based release/deadman switch mechanisms β€” targeting journalists, lawyers, compliance teams, and researchers. Requesting $46,400.

Confidence
100%
Match method
Direct Source Url
Minutes
Zcash Community Grants Meeting Minutes 05/25/2026

Forum links

1 primary, 1 supporting
Primary forum thread

Grant Application - Zcash Privacy Capsule

Hello everyone. Looking forward to questions & feedback. Grant Application can be found here: github.com/ZcashCommunityGrants/zcashcommunitygrants Grant Application - Zcash Privacy Capsule (ZPC) opened 04:08PM - 22 May 26 UTC orbism ### Terms and Conditions - [x] I agree to the [Gran...

Confidence
100%
Forum URL
https://forum.zcashcommunity.com/t/grant-application-zcash-privacy-capsule/55801
Open forum thread

source: forum_mirror | topicId: 55801 | fetchedAt: 2026-10-16T07:05:39.215Z | categoryId: 33 | mirrorKind: forum_topic | coverageCapped: false | discoveredFrom: ["github_issue_comment:ZcashCommunityGrants/zcashcommunitygrants#304:comment:4520893997"] | postStreamCount: 3

Supporting forum reference

Grant Application - Zcash Privacy Capsule

Hello everyone. Looking forward to questions & feedback. Grant Application can be found here: github.com/ZcashCommunityGrants/zcashcommunitygrants Grant Application - Zcash Privacy Capsule (ZPC) opened 04:08PM - 22 May 26 UTC orbism ### Terms and Conditions - [x] I agree to the [Gran...

Confidence
100%
Forum URL
https://forum.zcashcommunity.com/t/grant-application-zcash-privacy-capsule/55801/3
Open forum thread

source: forum_mirror | topicId: 55801 | fetchedAt: 2026-10-16T07:05:39.215Z | categoryId: 33 | mirrorKind: forum_topic | coverageCapped: false | discoveredFrom: ["github_issue_comment:ZcashCommunityGrants/zcashcommunitygrants#304:comment:4578582507"] | postStreamCount: 3

Application source evidence

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

Grant Application - Zcash Privacy Capsule (ZPC)

### Terms and Conditions - [x] I agree to the [Grant Agreement](https://9ba4718c-5c73-47c3-a024-4fc4e5278803.usrfiles.com/ugd/9ba471_f81ef4e4b5f040038350270590eb2e42.pdf) terms if funded - [x] I agree to [Provide KYC information](https:/...

Confidence
100%
Source ID
ZcashCommunityGrants/zcashcommunitygrants#304
Open source record

repo: zcashcommunitygrants | owner: ZcashCommunityGrants | state: closed | author: orbism | labels: ["πŸ“‹ Grant Application","πŸ‘€ Ready For ZCG Review","❌ Grant Declined"] | number: 304 | closedAt: 2026-05-29T18:30:37Z | commentCount: 5

Github Issue Comment

Comment on #304: Grant Application - Zcash Privacy Capsule (ZPC)

Looks like I can't post on the forums yet, so bumping this here.

Confidence
100%
Source ID
ZcashCommunityGrants/zcashcommunitygrants#304:comment:4520463505
Open source record

repo: zcashcommunitygrants | owner: ZcashCommunityGrants | author: orbism | number: 304 | issueUrl: https://github.com/ZcashCommunityGrants/zcashcommunitygrants/issues/304 | commentId: 4520463505 | createdAt: 2026-05-22T16:14:07Z | issueNumber: 304

Github Issue Comment

Comment on #304: Grant Application - Zcash Privacy Capsule (ZPC)

@orbism I've bumped up your forum trust level so you should be good to post. Please post the link here when available. Before you post: startup funding + milestones must equal total grant amount. So either remove startup funding or reduc...

Confidence
100%
Source ID
ZcashCommunityGrants/zcashcommunitygrants#304:comment:4520698585
Open source record

repo: zcashcommunitygrants | owner: ZcashCommunityGrants | author: alexgbo | number: 304 | issueUrl: https://github.com/ZcashCommunityGrants/zcashcommunitygrants/issues/304 | commentId: 4520698585 | createdAt: 2026-05-22T16:38:52Z | issueNumber: 304

Github Issue Comment

Comment on #304: Grant Application - Zcash Privacy Capsule (ZPC)

@alexgbo Thank you kindly for the clarity, and the permissions bump. I've adjusted the numbers (removed M1 $, kept startup), and fixed some rhetoric.

Confidence
100%
Source ID
ZcashCommunityGrants/zcashcommunitygrants#304:comment:4520831932
Open source record

repo: zcashcommunitygrants | owner: ZcashCommunityGrants | author: orbism | number: 304 | issueUrl: https://github.com/ZcashCommunityGrants/zcashcommunitygrants/issues/304 | commentId: 4520831932 | createdAt: 2026-05-22T16:52:44Z | issueNumber: 304

Github Issue Comment

Comment on #304: Grant Application - Zcash Privacy Capsule (ZPC)

[Forum post for reference. ](https://forum.zcashcommunity.com/t/grant-application-zcash-privacy-capsule/55801)

Confidence
100%
Source ID
ZcashCommunityGrants/zcashcommunitygrants#304:comment:4520893997
Open source record

repo: zcashcommunitygrants | owner: ZcashCommunityGrants | author: alexgbo | number: 304 | issueUrl: https://github.com/ZcashCommunityGrants/zcashcommunitygrants/issues/304 | commentId: 4520893997 | createdAt: 2026-05-22T16:58:59Z | issueNumber: 304

Github Issue Comment

Comment on #304: Grant Application - Zcash Privacy Capsule (ZPC)

https://forum.zcashcommunity.com/t/grant-application-zcash-privacy-capsule/55801/3

Confidence
100%
Source ID
ZcashCommunityGrants/zcashcommunitygrants#304:comment:4578582507
Open source record

repo: zcashcommunitygrants | owner: ZcashCommunityGrants | author: alexgbo | number: 304 | issueUrl: https://github.com/ZcashCommunityGrants/zcashcommunitygrants/issues/304 | commentId: 4578582507 | createdAt: 2026-05-29T18:30:37Z | issueNumber: 304

Google Sheet Row

Zcash Privacy Capsule (ZPC)

Date Submitted: 5/22/2026 | Proposal Title: Zcash Privacy Capsule (ZPC) | Applicant(s): orb | Grant Platform Link: https://github.com/ZcashCommunityGrants/zcashcommunitygrants/issues/304 | Forum Link: https://github.com/ZcashCommunityGrants/zcashcommunitygrants/issues/304#issuecomment-4520893997 | G

Confidence
100%
Source ID
1FQ28rDCyRW0TiNxrm3rgD8ai2KGUsXAjPieQmI1kKKg:1164534734:grant-platform:a960dcb23067168d407910ee0de6221ced3e5298fe1be189a38ef2cce11fc7f4
Open source record

gid: 1164534734 | sheetId: 1FQ28rDCyRW0TiNxrm3rgD8ai2KGUsXAjPieQmI1kKKg | tabName: all_grants_tracking | rowNumber: 573 | legacySourceId: 1FQ28rDCyRW0TiNxrm3rgD8ai2KGUsXAjPieQmI1kKKg:1164534734:row:573 | identityStrategy: grant_platform_link | businessIdentifier: https://github.com/ZcashCommunityGrants/zcashcommunitygrants/issues/304 | rowLocationSourceId: 1FQ28rDCyRW0TiNxrm3rgD8ai2KGUsXAjPieQmI1kKKg:1164534734:row:573