HEI

Historical Exchange Index

A quiet registry of crypto exchanges, active and gone.

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Exchange record

BrownFi

Multi-chain decentralized exchange using an AMM design derived from an elastic parameterized limit-order-book model. DefiLlama reports BrownFi activity across multiple chains with non-zero recent DEX volume, and the first-party BrownFi site and application remain reachable, so HEI classifies it as active.

DEXActive
Also known as: Brown Finance

Registry sequence

Key facts

Launch date
Death date
Years
—–—
Origin
Multi-chain DeFi ecosystem
Confidence
medium
Last verified
2026-07-04

URL handling

Preferred action
Use current URL handling based on status below.
URL status
Live verified
Archived URL

Summary

Multi-chain decentralized exchange using an AMM design derived from an elastic parameterized limit-order-book model. DefiLlama reports BrownFi activity across multiple chains with non-zero recent DEX volume, and the first-party BrownFi site and application remain reachable, so HEI classifies it as active.

Timeline

No events yet

This record does not have timeline entries yet.

Evidence

DefiLlamadatabase_referencemedium reliabilitystatusarchive
BrownFiofficial_statementhigh reliabilityentityarchive

Related records

Notes and record state

Record note
No reliable first-party launch date was recovered during this batch, so launch_date remains null. Current status is based on current protocol metrics plus a reachable first-party site and application.
Revision state
Records may be incomplete, approximate, contested, or revised as better evidence becomes available.
This record may be incomplete or revised. Dead-side entries prefer archived URLs over original domains. Dates, causes, and classifications may change when stronger evidence becomes available. Contact / corrections

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