ProofBridge Liner — Class A Release Announcement
Release: Safety Kernel v1.0 (Frozen)
Tag: v1.0-safety-kernel
Date: 2026-04-27
Repository: proofbridge-liner
Status: PUBLIC RELEASE
Publication Status
- arXiv Status: Ready for submission
- Manuscript:
arxiv-submission-paper.tex(arXiv-compatible LaTeX) - Submission Guide:
arxiv-submission-guide.md(complete metadata and process) - Categories: cs.CR (Cryptography and Security), cs.DC (Distributed Systems)
- arXiv Link: [Available after publication]
Call for Reviewers
- Status: Active
- Document:
CALL-FOR-REVIEWERS.md - Outreach: Targeted to academic researchers in cryptography, distributed systems, and regulatory technology
- Checklist:
reviewer-checklist.mdfor structured feedback
Release Summary
ProofBridge Liner Safety Kernel v1.0 is now publicly released under Class A classification. This research-grade system release establishes a canonical circuit-breaker pattern for tokenized real-world assets, frozen at the safety-critical layer with complete documentation for independent evaluation.
What Is Included
Core System (Safety Kernel v1.0)
- CircuitBreaker.sol: 109-line smart contract with full test coverage (14/14 passing)
- Prover Pipeline: IPFS-based document verification system
- Operations Dashboard: Real-time monitoring interface
- Deployment Infrastructure: Foundry scripts for Polygon Amoy
Documentation Suite
- Class A Release Specification: Formal system definition and scope
- Regulatory Reading Guide: Compliance and supervisory orientation
- Regulator Q&A Anticipation Sheet: Prepared responses for regulatory dialogue
- Integration Guide: Technical implementation for developers
- Economic Models: 3-year cost projections and equity analysis
- Risk Event Memo: Hypothetical scenario documentation
Business Artifacts
- Issuer Term Sheet: Commercial integration terms
- Strategic Positioning: Competitive analysis vs. Chainlink
- Task Report: Complete project execution summary
Problem Solved
Tokenized real-world assets create "ghost-risk": the risk that on-chain tokens continue trading after their legal backing has silently changed off-chain. ProofBridge Liner prevents this by halting transfers when legal uncertainty is detected.
Key Characteristics
Safety Kernel Invariants (Frozen)
- Transfers must halt when legal truth is uncertain
- Reset authority exclusive to issuer (human oversight preserved)
- Oracle cannot transfer, mint, burn, or seize assets
- Enforcement gas-bounded and deterministic
Trust Model
- Single oracle MVP (upgradeable to threshold consensus)
- Explicit access controls and event logging
- Fail-closed enforcement philosophy
- No automatic circuit resets (issuer discretion required)
Economic Model
- Zero-fee integration at adoption
- Marginal operational cost <$0.05 per asset per month
- Equity-carry alignment (1% of protected assets)
- No token issuance or subscription fees
Verification & Reproducibility
All claims are supported by executable artifacts:
git clone https://github.com/divhanimajokweni-ctrl/proofbridge-liner.git
cd proofbridge-liner
Intended Audience
- Tokenized Asset Issuers: Evaluate integration feasibility
- Smart Contract Engineers: Review implementation patterns
- Risk & Compliance Teams: Assess regulatory implications
- Protocol Researchers: Study ghost-risk mitigation approaches
- Infrastructure Partners: Explore integration opportunities
- Regulators & Auditors: Conduct technical review
Forward Compatibility
Future releases may introduce:
- Multi-oracle threshold consensus
- Hardware-backed key custody
- Registry integrations
- Multi-jurisdiction legal adapters
All future work will be versioned separately and will not alter v1.0 behavior.
Canonical Statement
ProofBridge Liner does not attempt to prove legal truth on-chain. It prevents the market from trading when legal truth is uncertain.
Release Declaration
By publishing this release, the authors declare that:
- The Safety Kernel v1.0 is frozen and will not be modified
- All included artifacts are complete and independently verifiable
- No hidden dependencies or undisclosed trust assumptions exist
- The release is complete within its declared scope
- Future development will occur under new version numbers
Next Steps
For Evaluation
- Review the Class A Release Specification
- Examine the CircuitBreaker.sol implementation
- Run the test suite and deployment scripts
For Integration
- Consult the Integration Guide
- Review the Issuer Term Sheet
- Evaluate the Economic Models
For Further Development
- Class B: Protocol publication with live testnet deployment
- Phase 5: Institutional adoption with audit and formal security review
- Production: Audited mainnet deployment
Disclaimer
This is a research-grade release for evaluation purposes. It does not constitute investment advice, legal opinion, or production deployment. Users should conduct their own technical, legal, and regulatory due diligence.
ProofBridge Liner Development Team
Safety Kernel v1.0 — Frozen
Class A Research Release