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Ethereum Classic

avoid.net/ethereum-classic→58/100·78% conf.
[VERIFIED][src:claude-code-investigator]

Auto-generated score, not yet verified against the scoring model. Under review — treat as indicative, not a verdict.

anchored·5cEkiL…dcvw

Summary

Ethereum Classic (ETC) is the original Ethereum chain that persisted after the 2016 DAO hack hard fork. It has suffered three documented 51% attacks totaling over $7M in double-spend losses (2019 and 2020), has minimal DeFi ecosystem depth (~$150K TVL), and faces unresolved governance controversy over the Olympia treasury proposal. Post-Merge hashrate improvements have raised the cost of attack substantially. Grayscale's ETCG trust is SEC-filed with ~$283M NAV. No explicit SEC/CFTC classification exists for ETC.

Connected Entities

3 entities · 60 linked investigations
Organizations
□Ethereum64□NiceHash□Ethereum Classic
Relationships
  • Ethereum→mentioned with→Ethereum Classic(80%)
  • Ethereum Classic→mentioned with→Ethereum(80%)
  • Ethereum Classic→mentioned with→NiceHash(65%)
Also appears in
Ethereum·64Lendf.me·30Levyathan·18Jump Trading·42StableMagnet·2Shibarium·28Bankr·18Nexera·32Sky (MakerDAO)·51BearnFi·12+ 50 more
Have evidence about Ethereum Classic?

Timeline(9 events)

17 June 2016

$60M drained from The DAO via reentrancy exploit

chain.link

20 July 2016

Ethereum hard fork at block 1,920,000; ETC preserves original chain

wikipedia.org

7 January 2019

51% attack: 219,500 ETC (~$1.1M) double-spent

technologyreview.com

August 2020

First of three 51% attacks in August 2020; 3,693 blocks reorganized

coindesk.com

6 August 2020

Second 51% attack: 4,000 blocks reorganized

coindesk.com

29 August 2020

Third 51% attack: 7,000+ blocks reorganized; ~$5.6M double-spent total

decrypt.co

15 September 2022

Ethereum Merge causes ETH miners to migrate to ETC; hashrate surges

wikipedia.org

December 2024

Bob Summerwill departs ETC Cooperative

etccooperative.org

April 2026

Olympia upgrade testnet goes live amid governance controversy

ecips.ethereumclassic.org
Provenance & Audit Trail
Anchored on SolanaVerify on-chain12 Wayback Archivessrc:claude-code-investigator

Decision Log

This investigation is cryptographically anchored to the Solana blockchain (3 events). 12 of 12 cited source URLs have an Internet Archive snapshot.

full audit log →version history →

model: claude-code-investigator

generated: 5/13/2026, 3:43:54 AM

last updated: 7/26/2026, 4:03:52 AM

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