BlindArbiter

BlindArbiter is a confidential milestone escrow arbiter for private deliverables.

It lets a buyer escrow against a natural-language acceptance rubric, a seller submit sealed evidence, and an agent emit a redacted verdict that releases or disputes settlement without exposing the underlying work.

Why It Exists

Private work is hard to settle fairly onchain.

Security audits, private patches, diligence memos, unreleased designs, and sensitive datasets often cannot be revealed before payment. Existing escrow flows force a bad choice:

• reveal the work before getting paid
• trust a human arbiter with weak transparency
• fall back to chat-based coordination with no verifiable audit trail

BlindArbiter turns that into a machine-verifiable settlement flow.

Public Surface

• Proof site: https://blind-arbiter.vercel.app
• Repository: https://github.com/dolepee/blind-arbiter

The Vercel deployment is intentionally read-only. It exists to show the live proof trail, not to expose private deliverables or the operator environment.

What The Product Does

1. A buyer funds a milestone escrow against a natural-language rubric.
2. A seller submits sealed evidence for review.
3. BlindArbiter emits a redacted verdict plus a report hash.
4. The system releases the escrow or opens a dispute and anchors public receipts.

Live Proof

BlindArbiter already has real proof on multiple surfaces.

Ethereum Sepolia

• Escrow contract: 0x89cf6d586902b8750e6d6e5158c51e838cae7aa0
• Deploy tx: 0x9fc631c9e5a5a5cf21c2f41920b8ab78531b37eb1c001a6c86ba0a89003c92eb
• Operator wallet: 0x8942F989343e4Ce8e4c8c0D7C648a6953ff3A5A2

Canonical live lifecycle: caseId 5

• Buyer wallet: 0x8942F989343e4Ce8e4c8c0D7C648a6953ff3A5A2
• Seller wallet: 0x69449340611aE2D705E5CF6f1109E210c4f7b2d3
• Arbiter wallet: 0x8942F989343e4Ce8e4c8c0D7C648a6953ff3A5A2
• Create case: 0x8456115d3cc1f69063abaee385fc6837c804997aecfeb5c8f3e991fdd27b4f4a
• Accept case: 0x16eed5986f615be527673f34cbfa8ad60d0a251a4c82c882d87a5b29574452ed
• Submit deliverable: 0xd9639a622d3583a8755c2743409f100e8582853055b88af12fc034d0f835cfd6
• Post verdict: 0xc96cbd63a848d5dd365929e50008bedc0832c07753786d2e91794067a84ce84a
• Release escrow: 0x19dc02d72467289a948eeb116edb844e0ae5d31be57a96cf9fa69e9eb4605bc6

Status Sepolia

• Receipt registry: 0x6d67cf8ba5857425bed0d2b214e0ce2814f7db07
• Registry deploy tx: 0x05d0a1d988998aef1dcde8c704c47fe98a7c34b1d02ebd2d6e74f427375f20cc

Anchored receipts:

• Verdict receipt: 0x7bd8607df39090a914fcb0b08fdd0af691bafbf5d556d788b1ae05a4ad41f306
• Release receipt: 0x99fd4eeeecfbfe23e585a9547f475418e32da9f3cd8631cdffa7fa7b9fa15974
• Dispute receipt: 0xde939dd769c3e74cc944567afcca2c6d938881e82ac9c54230037c2203a2fa8a

Arkhai / Alkahest Sepolia

BlindArbiter also completed a live natural-language agreement lifecycle using the official trusted-oracle arbiter flow:

• Token deploy: 0x6a17e3da4b45767dbd6a87f1791f47a046f1de0057286d4e336ec5b3b3076d86
• Escrow create: 0x459cccec9cc5272687f02a0ece1d09f476f95f5dc8a7fcbe48c648846903a98f
• String fulfillment: 0x7561971466203c32f75eaadab0bafc9b783a019338bd51c1f2170b715e7ff851
• Arbitration request: 0x4aca0e8e80945514a18fc5492f60ac797fe8772d58311fcc157058c20b869db8
• Oracle decision: 0x2719b496bed7b77e8cd3131c127d28c47a1c799f9be61c0491bd9e712b79fc46
• Escrow collect: 0xc6d0a5bae417cb2d694d75c82ad2e28ffd308a3577f6734c610f576f0352f937

Current Scope

Real Now

• Ethereum Sepolia escrow deployment
• canonical onchain escrow lifecycle
• Status receipt registry deployment
• anchored Status receipts
• full live Arkhai lifecycle on Sepolia
• public proof site on Vercel

Local For Now

• the confidential review worker runs locally over HTTP and Docker

Not Claimed

• live EigenCloud runtime
• Self Agent ID integration
• ERC-8004 identity integration

Repository Structure

src/
  app/                         Next.js app and API routes
  components/                  public proof UI
  lib/                         state, proof loading, and integrations
contracts/
  BlindArbiterEscrow.sol
  BlindArbiterReceiptRegistry.sol
worker/
  server.mjs                   local confidential review worker
  Dockerfile                   worker image definition
scripts/
  deploy-sepolia-escrow.mjs
  smoke-sepolia-escrow.mjs
  run-sepolia-arkhai-live.mjs
  run-sepolia-arkhai-oracle.mjs
submission/
  draft payload, proof inventory, demo script, and generated assets

Run Locally

npm install
npm run dev

Then open http://localhost:3000.

To run the review worker:

npm run worker:eigencompute
EIGENCOMPUTE_REVIEW_URL=http://127.0.0.1:3000/review npm run dev

Key Environment Variables

STATUS_PRIVATE_KEY=
STATUS_RPC_URL=https://public.sepolia.rpc.status.network
STATUS_CHAIN_ID=1660990954
STATUS_EXPLORER_BASE_URL=https://sepoliascan.status.network
STATUS_RECEIPT_REGISTRY_ADDRESS=

SEPOLIA_PRIVATE_KEY=
SEPOLIA_RPC_URL=https://ethereum-sepolia-rpc.publicnode.com
SEPOLIA_CHAIN_ID=11155111
SEPOLIA_EXPLORER_BASE_URL=https://sepolia.etherscan.io
SEPOLIA_ESCROW_ADDRESS=

EIGENCOMPUTE_REVIEW_URL=http://127.0.0.1:3000/review

NLA_NETWORK=sepolia
NLA_ORACLE_ADDRESS=0xc5c132B69f57dAAAb75d9ebA86cab504b272Ccbc
NLA_TOKEN_ADDRESS=
NLA_ARBITRATION_PROVIDER=OpenAI
NLA_ARBITRATION_MODEL=gpt-4o-mini

Submission Assets

Generated assets for the hackathon submission live in submission/assets/:

• blind-arbiter-cover.png
• blind-arbiter-screens.png
• blind-arbiter-demo.mp4

Supporting submission files live in submission/:

• draft payload
• track map
• proof inventory
• demo script
• collaboration log

Submission Positioning

BlindArbiter is packaged around the tracks it can defend honestly:

• Synthesis Open Track
• Status Network
• Arkhai Applications
• Arkhai Escrow Ecosystem Extensions

The project is not being positioned around hosted confidential compute until that path is actually live.