Coinholder Retroactive Grants Q3
- Closed
- Snapshot
- Block 3,485,940
- Questions
- 37
- Discussion
- Forum thread
- ZEC voted
- 2,181,453
Accept 3.6% 79,508 ZEC Reject 63.8% 1,391,628 ZEC Reject - Would Reconsider Lower Amount 0.0% 33 ZEC Abstain 32.6% 710,283 ZECZcash Grants Hub — $3,050 USD
Reject 63.8% 1,391,628 ZEC All 4 answersBuilt and shipped an open-source unified grants platform aggregating ZCG, Coinholder Grants, and ZecHub DAO proposals into a single interface, with filtering/sorting, grant detail pages, analytics views, GitHub-based submission UX improvements, and ZecHub DAO participation guidance — completed April 2026.
Accept 24.1% 524,770 ZEC Reject 75.7% 1,650,918 ZEC Reject - Would Reconsider Lower Amount 0.0% 440 ZEC Abstain 0.2% 5,325 ZECShieldedScan — $4,060 USD
Reject 75.7% 1,650,918 ZEC All 4 answersA free, no-tracker, cypherpunk-styled Zcash block explorer for blocks, transactions, cross-chain transfers, shielded pools, and network analytics (charts, tables, Sankey diagrams), plus a free keyless API.
Accept 18.2% 396,820 ZEC Reject 76.6% 1,671,152 ZEC Reject - Would Reconsider Lower Amount 0.0% 0 ZEC Abstain 5.2% 113,478 ZECZecKit Post-M3 Stabilization and Developer Adoption — $5,000 USD
Reject 76.6% 1,671,152 ZEC All 4 answersOpen-source Zcash developer toolkit for a local Zebra regtest environment and reusable CI workflow. This retroactive request covers post-M3 work improving documentation, installability, reliability, and maintainability.
Accept 71.9% 1,566,864 ZEC Reject 0.1% 1,846 ZEC Reject - Would Reconsider Lower Amount 0.0% 290 ZEC Abstain 28.0% 610,683 ZECzcashtocash via ZcashLabs — $6,000 USD
Accept 71.9% 1,566,864 ZEC All 4 answerszcashto.cash lets anyone exchange ZEC for fiat via 100+ geographies and 6 fiat apps (Cash App, Chime, Monzo, Revolut, Venmo, Zelle), non-custodial via the Peer protocol. Funded by the new ZcashLabs program managing Coinholder Retroactive Grants.
Accept 18.8% 408,984 ZEC Reject 75.7% 1,649,423 ZEC Reject - Would Reconsider Lower Amount 0.5% 11,430 ZEC Abstain 5.0% 109,338 ZECzec-ironwood-reconcile — $8,250 USD
Reject 75.7% 1,649,423 ZEC All 4 answersCompleted open-source Rust CLI that reconstructs Orchard and Ironwood value-pool changes from raw public Zcash block data and compares calculated balances with Zebra's reported balances. v1.0.0 release includes offline-verifiable evidence archives, deterministic reports, and reproduction instructions.
Accept 2.9% 63,860 ZEC Reject 92.0% 2,005,000 ZEC Reject - Would Reconsider Lower Amount 0.1% 1,188 ZEC Abstain 5.0% 109,139 ZECGleyo — $9,081.20 USD
Reject 92.0% 2,005,000 ZEC All 4 answersA Zcash-native community quest platform where members earn shielded ZEC rewards without upfront wallet setup — live in closed beta with 38 weekly active users, 33 mainnet transactions spanning the Ironwood upgrade, and upstream contributions to Nozy Wallet.
Accept 4.9% 106,078 ZEC Reject 89.6% 1,952,788 ZEC Reject - Would Reconsider Lower Amount 0.6% 12,897 ZEC Abstain 4.9% 107,461 ZECSelf-Sovereign Zcash Testnet Faucet — $9,280 USD
Reject 89.6% 1,952,788 ZEC All 4 answersA complete, self-hosted, self-sovereign Zcash testnet faucet (own Zebra node, Zallet wallet, Zaino indexer, solo miner) with shielded z-to-z payouts, an honest control plane, two upstream Crosslink bug-fix PRs, and the zsnap snapshot tool.
Accept 2.8% 60,769 ZEC Reject 92.3% 2,012,175 ZEC Reject - Would Reconsider Lower Amount 0.1% 1,834 ZEC Abstain 4.8% 104,432 ZECCyphZec.com — $10,000 USD
Reject 92.3% 2,012,175 ZEC All 4 answersA free, no-account site for watching ZEC and CYPH: live prices, shielding and Ironwood stats, treasury, network stats, and an on-device portfolio.
Accept 18.6% 404,349 ZEC Reject 76.3% 1,663,780 ZEC Reject - Would Reconsider Lower Amount 0.0% 846 ZEC Abstain 5.1% 110,234 ZECZecLedger — $10,000 USD
Reject 76.3% 1,663,780 ZEC All 4 answersA read-only shielded wallet accounting CLI (Unified Full Viewing Key, key never leaves device) producing cost-basis/gain-loss reports, payment reconciliation, privacy checks, and ZIP-321 payment request generation — verified against a real 108-transaction mainnet wallet — plus ZecLedger Web, a public network dashboard.
Accept 4.8% 104,753 ZEC Reject 81.6% 1,777,440 ZEC Reject - Would Reconsider Lower Amount 0.7% 15,713 ZEC Abstain 12.9% 281,304 ZEClightwalletd-rs — $10,720 USD
Reject 81.6% 1,777,440 ZEC All 4 answersAn independent Rust implementation of the Zcash light-client server (caching proxy between zebrad and shielded wallets), built June–August 2026, implementing all 20 CompactTxStreamer gRPC methods, public under MIT, CI-tested, and benchmarked against the Go reference implementation.
Accept 4.1% 88,977 ZEC Reject 82.9% 1,806,783 ZEC Reject - Would Reconsider Lower Amount 8.1% 176,933 ZEC Abstain 4.9% 106,545 ZECBlindvault — $17,000 USD
Reject 82.9% 1,806,783 ZEC All 4 answersA privacy-preserving credential issuance service allowing applications to issue and verify one-time anonymous credentials without tracking users, using BLS12-381 blind signatures and DLEQ proofs. Serves as middleware for private airdrops, access controls, community votes, and similar apps.
Accept 4.0% 86,931 ZEC Reject 82.9% 1,807,452 ZEC Reject - Would Reconsider Lower Amount 0.2% 3,497 ZEC Abstain 12.9% 281,366 ZECZallet RPC Parity Harness — $20,000 USD
Reject 82.9% 1,807,452 ZEC All 4 answersA completed standalone Rust CLI that compares results from operator-supplied zcashd and Zallet JSON-RPC endpoints and generates normalized JSON/Markdown reports. Includes a 24-entry comparison manifest, six result classifications, automated tests, mock-node E2E validation, CI, and an operator runbook.
Accept 8.2% 178,399 ZEC Reject 63.5% 1,383,932 ZEC Reject - Would Reconsider Lower Amount 0.5% 11,255 ZEC Abstain 27.8% 605,677 ZECZecmap — $21,300 USD
Reject 63.5% 1,383,932 ZEC All 4 answersA discovery platform (zecmap.com, Android, iOS) that lists Zcash-accepting businesses on an interactive map to drive real-world adoption of privacy-focused crypto payments.
Accept 34.7% 757,044 ZEC Reject 8.6% 187,237 ZEC Reject - Would Reconsider Lower Amount 9.0% 196,044 ZEC Abstain 47.7% 1,038,923 ZECConnaugh Zcash Videos — $22,000 USD
Accept 34.7% 757,044 ZEC All 4 answersEditing and re-architecting Zcash ecosystem video footage into short, single-argument films for audiences unlikely to watch long-form content — five films published 28 July–12 August 2026, reaching 45,811 impressions and 9,931 views.
Accept 4.0% 87,144 ZEC Reject 82.3% 1,792,546 ZEC Reject - Would Reconsider Lower Amount 0.6% 13,823 ZEC Abstain 13.1% 285,716 ZECZAP1 — $28,000 USD
Reject 82.3% 1,792,546 ZEC All 4 answersA Zcash application-layer attestation protocol built March–May 2026 using BLAKE2b Merkle commitments anchored to mainnet via Orchard shielded memos, with a Rust reference implementation, verification crate, JS/NPM package, and live public API.
Accept 4.6% 101,026 ZEC Reject 81.7% 1,779,666 ZEC Reject - Would Reconsider Lower Amount 8.7% 190,132 ZEC Abstain 5.0% 108,416 ZECZecBooks — $32,000 USD
Reject 81.7% 1,779,666 ZEC All 4 answersA Mac-native, local-first bookkeeping layer for shielded Zcash: import a viewing key, classify income/change/expense, and export a scoped, expiring proof pack for an accountant. Cannot spend ZEC; not a merchant checkout product.
Accept 91.2% 1,988,112 ZEC Reject 3.8% 83,142 ZEC Reject - Would Reconsider Lower Amount 0.1% 1,753 ZEC Abstain 4.9% 106,221 ZECCipherPay — $35,000 USD
Accept 91.2% 1,988,112 ZEC All 4 answersA non-custodial Zcash commerce platform built February–May 2026, shipping six MIT-licensed repositories covering payment processing, subscriptions, e-commerce plugins (Shopify, WooCommerce), event ticketing, AI agent payments (x402, MCP), and a point-of-sale interface — live with real merchants.
Accept 4.3% 92,629 ZEC Reject 82.1% 1,788,096 ZEC Reject - Would Reconsider Lower Amount 0.6% 12,739 ZEC Abstain 13.1% 285,740 ZECZafu Browser Extension — $38,000 USD
Reject 82.1% 1,788,096 ZEC All 4 answersA privacy-centric Chrome MV3 browser wallet built around Zcash (with Penumbra as a second chain), delivering sub-12-second client-side Halo2 proving via parallelized WASM, FROST t-of-n Orchard multisig, an air-gapped signer (Zigner), and a per-site identity SDK (ZID) — published as an open-source beta on the Chrome Web Store.
Accept 4.2% 92,218 ZEC Reject 90.7% 1,976,692 ZEC Reject - Would Reconsider Lower Amount 0.1% 2,824 ZEC Abstain 4.9% 107,506 ZECZapp — $40,000 USD
Reject 90.7% 1,976,692 ZEC All 4 answersA serverless, end-to-end encrypted P2P messenger fusing chat with shielded Zcash payments, enabling in-thread transactions and scan-and-pay. Live on Google Play, supporting fiat offramps across seven emerging-market rails without a phone number or central server.
Accept 5.7% 123,820 ZEC Reject 81.1% 1,767,284 ZEC Reject - Would Reconsider Lower Amount 8.2% 179,655 ZEC Abstain 5.0% 108,481 ZECOpen-Source Zcash Hardware-Wallet SDK — $40,000 USD
Reject 81.1% 1,767,284 ZEC All 4 answersThe first portable, vendor-neutral, plain-C Orchard hardware wallet stack (~20,300 LOC across four MIT-licensed repos): a C11 crypto library, a Rust signing SDK, a Flipper Zero app, and an ESP32-S2 port — culminating in the first Orchard-shielded spend signed offline by a Flipper Zero, broadcast on mainnet 2026-03-30.
Accept 23.9% 521,244 ZEC Reject 75.6% 1,648,339 ZEC Reject - Would Reconsider Lower Amount 0.2% 3,818 ZEC Abstain 0.3% 5,802 ZECNozy Wallet — $60,000 USD
Reject 75.6% 1,648,339 ZEC All 4 answersA self-hosted, shielded-first Zcash wallet running on the user's own Zebrad/Zakura + lightwalletd, with local witnesses rather than a hosted light wallet — CLI, Desktop, and companion API on the same core.
Accept 67.3% 1,467,037 ZEC Reject 0.4% 8,473 ZEC Reject - Would Reconsider Lower Amount 0.0% 640 ZEC Abstain 32.3% 703,091 ZECTHORSwap/Metro — $60,000 USD
Accept 67.3% 1,467,037 ZEC All 4 answersIntegration of native ZEC cross-chain swaps into THORSwap and Metro wallet (launched October 2025), reporting $50M+ in ZEC volume, a $520K largest single swap, 24+ supported chains, and dual routing via Maya Protocol and NEAR Intents — no KYC, no custody, hardware wallet support.
Accept 65.9% 1,436,595 ZEC Reject 6.4% 139,621 ZEC Reject - Would Reconsider Lower Amount 0.1% 1,384 ZEC Abstain 27.6% 601,604 ZECExpanding Zcash In Unstoppable Wallet — $80,000 USD
Accept 65.9% 1,436,595 ZEC All 4 answersQ1–Q3 2026 work covering expanded swap aggregation, Zcash wallet reliability improvements (server selection, transaction resend, address rotation, SDK migration), and full NU6.3/Ironwood migration support.
Accept 2.0% 44,642 ZEC Reject 65.1% 1,419,201 ZEC Reject - Would Reconsider Lower Amount 0.3% 7,310 ZEC Abstain 32.5% 707,876 ZECZcashNames — $122,400 USD
Reject 65.1% 1,419,201 ZEC All 4 answersAn on-chain Zcash naming system (ZNS) mapping human-readable names like alice.zcash to shielded addresses, delivered as a live beta web app, public explorer, docs portal, and developer SDK — framed as the trust-minimized successor to ZcashMe.
Accept 7.9% 171,960 ZEC Reject 86.5% 1,884,711 ZEC Reject - Would Reconsider Lower Amount 0.6% 13,473 ZEC Abstain 5.0% 109,034 ZECFrontier Compute Zcash Security Research and Remediation Pack — $136,250 USD
Reject 86.5% 1,884,711 ZEC All 4 answersA completed security-research and remediation pack covering concrete security failures found in Zcash infrastructure and wallet code, responsibly disclosed and verified through to shipped remediation.
Accept 63.9% 1,392,929 ZEC Reject 0.2% 4,122 ZEC Reject - Would Reconsider Lower Amount 28.6% 622,261 ZEC Abstain 7.3% 159,927 ZECZebra Critical Vulnerability Bug Bounty (CVE-2026-34202) — $150,000 USD
Accept 63.9% 1,392,929 ZEC All 4 answersBug bounty request for CVE-2026-34202, a Critical (CVSS 9.2) vulnerability allowing any unauthenticated peer to crash any Zebra node with a single P2P message, found via coverage-guided fuzzing, reported privately, and fixed in Zebra 4.3.0. No bounty was previously paid; ZCG's bounty program launched after this report and does not apply retroactively.
Accept 99.6% 2,170,803 ZEC Reject 0.2% 3,737 ZEC Reject - Would Reconsider Lower Amount 0.1% 1,358 ZEC Abstain 0.2% 3,306 ZECBonus Grant for Ironwood zk-SNARK Formal Verification — $261,058 USD
Accept 99.6% 2,170,803 ZEC All 4 answersA bonus grant nomination (not a standard application) arguing Tachyon Foundation's $738,942 application for leading Ironwood zk-SNARK formal verification underprices real absorbed costs and emergency-rate work; this adds $261,058 to bring total recognition to $1,000,000.
Accept 99.5% 2,169,041 ZEC Reject 0.0% 19 ZEC Reject - Would Reconsider Lower Amount 0.3% 5,961 ZEC Abstain 0.2% 4,124 ZECCipherScan — $375,000 USD
Accept 99.5% 2,169,041 ZEC All 4 answersA production Zcash block explorer and privacy-intelligence platform (cipherscan.app) covering completed, previously unfunded work: a custom Rust chain indexer, privacy-linkage analysis, wallet-fingerprint research, mining intelligence, an automated public data bot, and analytics tools.
Accept 98.4% 2,145,017 ZEC Reject 0.1% 3,138 ZEC Reject - Would Reconsider Lower Amount 1.2% 25,940 ZEC Abstain 0.2% 5,097 ZECTemporary Detectable Unlimited mint and sell Exploit — $400,000 USD
Accept 98.4% 2,145,017 ZEC All 4 answersRetroactive bounty request for multiple responsibly disclosed vulnerabilities across zcashd and Zebra, including a Sprout proof-verification bypass, a ZIP 209 turnstile-disabling duplicate-header bug, and consensus-divergence/node-crash findings composing into a temporary undetectable mint-and-sell exploit of counterfeit ZEC.
Accept 96.2% 2,095,861 ZEC Reject 0.2% 4,229 ZEC Reject - Would Reconsider Lower Amount 3.5% 75,624 ZEC Abstain 0.2% 3,465 ZECFive Critical Zebra Consensus Divergence Vulnerabilities — $425,000 USD
Accept 96.2% 2,095,861 ZEC All 4 answersNet retroactive security award request for five responsibly disclosed Zebra vulnerabilities (each published by ZF as Critical) found via LLM-assisted differential review, validated, reported privately, and remediated; a separate $100,000 third-party payment is disclosed and deducted from the request.
Accept 90.4% 1,970,715 ZEC Reject 0.0% 30 ZEC Reject - Would Reconsider Lower Amount 4.8% 103,761 ZEC Abstain 4.8% 104,709 ZECZec.rocks (16 months of uptime for Zcash wallets) — $584,992 USD
Accept 90.4% 1,970,715 ZEC All 4 answersInfrastructure powering 16 months of uptime for every major Zcash wallet: global edge monitoring, on-call support, testing new software at scale, and deploying critical updates including the Orchard security response before it was published.
Accept 99.8% 2,175,934 ZEC Reject 0.0% 61 ZEC Reject - Would Reconsider Lower Amount 0.0% 316 ZEC Abstain 0.1% 2,951 ZECIronwood external audit reimbursement — $599,000 USD
Accept 99.8% 2,175,934 ZEC All 4 answersRetroactive reimbursement for $599,000 of external security review costs incurred during the Ironwood incident response, engaging cryptography/blockchain auditors and AI tools to confirm no second soundness bug existed. Excludes any margin to Valargroup or costs to Valargroup team members.
Accept 99.9% 2,177,498 ZEC Reject 0.0% <1 ZEC Reject - Would Reconsider Lower Amount 0.0% 7 ZEC Abstain 0.1% 1,724 ZECIronwood zk-SNARK Formal Verification (Project Tachyon) — $738,942 USD
Accept 99.9% 2,177,498 ZEC All 4 answersAfter the Orchard counterfeiting vulnerability disclosure, Project Tachyon paused its roadmap to lead formal verification of Ironwood (NU6.3), implementing the new circuit, funding two independent verification firms, and producing machine-checked Lean proofs demonstrating no undetectable-counterfeiting vulnerabilities in the Ironwood zk-SNARK.
Accept 100.0% 2,179,063 ZEC Reject 0.0% 19 ZEC Reject - Would Reconsider Lower Amount 0.0% 98 ZEC Abstain 0.0% <1 ZECOrchard Counterfeiting Vulnerability Bug Bounty — $750,000 USD
Accept 100.0% 2,179,063 ZEC All 4 answersBug bounty request for responsibly disclosing the Orchard counterfeiting vulnerability, which likely prevented the loss of $2.3B USD worth of ZEC. Intended to incentivize future responsible disclosure of devastating counterfeiting vulnerabilities.
Accept 99.8% 2,174,541 ZEC Reject 0.1% 2,824 ZEC Reject - Would Reconsider Lower Amount 0.0% 97 ZEC Abstain 0.1% 1,763 ZECTaylor Hornby - Bonus Grant for Orchard Counterfeiting Vulnerability Bug Bounty — $750,000 USD
Accept 99.8% 2,174,541 ZEC All 4 answersA bonus grant nomination (not a standard application) arguing Taylor Hornby's $750,000 bounty ask for the Orchard counterfeiting vulnerability (application #51) is far below industry norms for a finding of this severity; adds $750,000 to bring the total to $1,000,000.
Accept 99.8% 2,174,892 ZEC Reject 0.0% 47 ZEC Reject - Would Reconsider Lower Amount 0.1% 3,122 ZEC Abstain 0.1% 1,215 ZECValarGroup Ironwood Work — $1,203,000 USD
Accept 99.8% 2,174,892 ZEC All 4 answersRetroactive compensation for Valargroup's emergency development, integration, testing, infrastructure, and activation work for Ironwood (NU6.3): consensus rules, production full node, wallet/migration tooling, transaction hashing, hardware signing, miner compatibility, public test infrastructure, and mainnet operations on an under-two-month emergency schedule.
Accept 80.5% 1,755,093 ZEC Reject 13.2% 286,655 ZEC Reject - Would Reconsider Lower Amount 6.3% 137,082 ZEC Abstain 0.0% 474 ZECZODL Q1 2026 Core Protocol Development — $1,950,000 USD
Accept 80.5% 1,755,093 ZEC All 4 answersAmended retroactive grant covering January–June 2026, narrowed to three workstreams: remediation of 10 major vulnerabilities (including 4 critical), Zallet v0.1.0-alpha.4 delivery with integration test suite, and ZIP 2005 (Quantum Recoverability) reaching Proposed / ZIP 256 reaching Final.