MattHintz

## README.md

      
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                MattHintz
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              Last active
              May 7, 2026 04:20
            
              
                PoC: Lotus mempool verify-before-dedup cost asymmetry (Immunefi Filecoin)
              
          
    PoC bundle — Lotus mempool verify-before-dedup ordering

Runnable, recorded proof-of-concept for the Immunefi submission IMMUNEFI_FILECOIN_LOTUS_MEMPOOL_VERIFY_BEFORE_DEDUP.md.
Target: github.com/filecoin-project/lotus
Commit measured: master HEAD 7db6708 as of 2026-05-04
Run date: 2026-05-06
Total wall-clock to reproduce: ~0.1 s on a 4-core development laptop.
Files


## README.md

      
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                MattHintz
                / README.md
            
            
              Created
              May 7, 2026 03:23
            
              
                PoC: Lotus chain-exchange protocol amplification (Immunefi Filecoin)
              
          
    PoC bundle — Lotus chain-exchange amplification (/fil/chain/xchg/0.0.1)

This bundle is the runnable, recorded proof-of-concept for the Immunefi submission IMMUNEFI_FILECOIN_LOTUS_CHAINXCHG_AMPLIFICATION.md.
Files


File
Purpose


amplification_external_test.go
Stage 0 (single-request linear amplification) + Stage 1 (concurrency bottleneck). Drop into filecoin-project/lotus/chain/exchange/.


audit_export.go
Cross-package shim that exports ServiceRequestForAudit so Stage 2 (in chain/messagepool) can drive a chain-exchange request. Drop into filecoin-project/lotus/chain/exchange/.
File	Purpose
`amplification_external_test.go`	Stage 0 (single-request linear amplification) + Stage 1 (concurrency bottleneck). Drop into `filecoin-project/lotus/chain/exchange/`.
`audit_export.go`	Cross-package shim that exports `ServiceRequestForAudit` so Stage 2 (in `chain/messagepool`) can drive a chain-exchange request. Drop into `filecoin-project/lotus/chain/exchange/`.