BLS Signature Aggregation Verification Panel for Bulk Attestations

[JamesEjembi]

Problem Statement / Feature Objective

Bulk attestation submissions use BLS signature aggregation to combine multiple validator signatures into a single aggregate signature. Operators need a verification panel that displays aggregation efficiency, tracks individual signer contributions, and validates aggregate signature correctness using the BLS12-381 pairing check – all without requiring a full beacon node RPC call for verification.

Technical Invariants & Bounds

• Aggregation efficiency = (individual_sig_size × num_signers) / aggregate_sig_size – minimum bar: >90% efficiency required
• Pairing check verification must complete in <500ms for up to 100 signers using WebAssembly-compressed BLS library
• Signer contribution tracking: each signer's participation logged per aggregation round, stored for 24h rolling window
• Anomaly detection: flag any signer whose signature appears in <95% of aggregation rounds as potentially faulty
• Aggregation history retained for 7 days in IndexedDB, compressed via delta encoding (≈70% space reduction)

Codebase Navigation Guide

• src/hooks/useBulkAggregation.ts – hook for aggregation data
• src/components/validators/BLSAggregationPanel.tsx – main panel component
• src/services/blsService.ts – BLS operation service wrapper
• src/wasm/blsPairingCheck.wasm – WebAssembly BLS pairing check module
• src/utils/deltaEncoding.ts – delta encoding for compression
• src/store/aggregationSlice.ts – state management

Implementation Blueprint

1. Integrate @chainsafe/blst-based WASM module as src/wasm/blsPairingCheck.ts – exposes verifyAggregateSignature(publicKeys, message, signature) → boolean
2. Create src/utils/aggregationEfficiency.ts – computes efficiency ratio and tracks per-signer contribution
3. Build src/hooks/useBulkAggregation.ts – subscribes to attestation aggregation events via beacon node event stream, maintains 24h signer history
4. Implement delta encoding compressor src/utils/deltaEncoding.ts – stores/retrieves aggregation history in IndexedDB with 70% compression target
5. Create src/components/validators/BLSAggregationPanel.tsx with:
   • Efficiency gauge (semi-circular, 90% threshold marker)
   • Signer participation table (validator index, participation %, last_seen, status)
   • Aggregate signature verification trigger (manual button + auto-verify every 100th aggregation)
   • Anomaly highlighting for signers below 95% participation
6. Mount in ValidatorDashboard.tsx as a collapsible "BLS Aggregation" section

[clintjeff2]

Hello, I have 6 years of experience working on tasks like this and handling similar challenges across backend, frontend, and smart-contract development. I have carefully read and fully understood the task requirements, and I am confident I can deliver a clean, efficient, and well-tested solution promptly. I always ensure high-quality implementation, maintainability, and adherence to best practices.

Pull request in 5 hours.

[grantfox-oss]

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@clintjeff2's PR #89 was approved and merged by @JamesEjembi.

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👏 Great work, @clintjeff2! Keep contributing to VeriNode-Labs.