Ethereum Classic (ETC): D-Score 67/100 — Decentralized BlockIndex D-Score: 67/100 (Decentralized). Ethereum Classic (ETC) is a Layer 1 cryptocurrency using PoW consensus. Ethereum Classic: Immutable EVM-compatible PoW Layer‑1 with capped supply, client diversity and institutional custody support. Source: https://blockindex.ai/coin/etc · Data by BlockIndex.AI · Updated 2026-06-19 D-Score breakdown (0-100, higher means more decentralized) Component: Score: Overall D-Score: 67: Node distribution: 22: Initial distribution: 6: Governance: 21: Age and history: 13: Autonomy: 5: Key facts - Layer: Layer 1 - Consensus: PoW (Ethash) - Launch: Other (2015) - Founder: Vitalik Buterin, Anthony Di Iorio, Charles Hoskinson, Joseph Lubin - VC funded: No - Max supply: 210,700,000 - Circulating: 157,166,001 (74.6%) Market data (as of 2026-06-19) - Price: $7.23 - Market cap: $1.14B - 24h volume: $38.56M - 24h change: +1.15% · 7d change: -0.16% About Ethereum Classic (ETC) is the continuation of the original Ethereum mainnet and positions itself as a mission-driven, immutable, censorship‑resistant Layer‑1 smart contract platform. Born out of the contentious events surrounding the DAO exploit and the July 2016 hard fork, ETC preserves the ledger and philosophy of “Code is Law,” emphasizing that transactions and state should not be retroactively altered. The project combines EVM-compatible programmability with a fixed monetary policy and Proof‑of‑Work security, offering an alternative for users and institutions that prioritize immutability, predictable supply dynamics, and familiar Ethereum tooling. Over its history ETC has maintained a decentralized development model with multiple independent teams, community bodies such as the ETC Cooperative, and evolving client implementations that seek to balance performance, resilience, and protocol stability. On the technical front, ETC is an EVM-compatible PoW blockchain that uses the Ethash mining algorithm and supports smart contracts and decentralized application composition in a single replicated state. The network is notable for its client diversity—Core‑Geth (Go) is a primary implementation, alongside work on Scala and compatibility with Hyperledger Besu—plus ongoing initiatives to improve interoperability and resilience, including bridge and state-channel efforts (ChainSafe, Connext) and the Fukuii/Scala client trials. ETC enforces a capped supply of 210,700,000 ETC and follows a disinflationary block reward schedule (reward reductions roughly every 5 million blocks, equivalent to approximately 20% reductions every two years as implemented via protocol rules). Average block times reported in the provided sources are around 11–13 seconds, and explorer data shows continued block production and transactions per day consistent with active dApp and on‑chain activity. ETC’s use cases and ecosystem reflect its positioning as a conservative, security-focused smart contract platform. Developers and dApps that value immutability, long-term predictable issuance, and EVM tooling compatibility deploy to ETC for applications where censorship resistance is paramount. Institutional adoption themes are emerging—custody support and institutional-grade plumbing (e.g., Grayscale’s Ethereum Classic Trust and increasing custodian coverage) make ETC accessible for funds and institutional investors seeking exposure to a PoW EVM asset with a capped supply. The ecosystem includes standard wallet support (hardware wallets such as Ledger, desktop wallets like MyEtherWallet/MEW, mobile support via Coinbase apps, browser extensions such as nami, and institutional custody providers), broad centralized exchange listings (Binance, Coinbase, Kraken, Bybit, Bitget, Bittrex), and analytics coverage from CoinMarketCap, CoinGecko, Messari and CryptoCompare. Governance at ETC is community-driven and largely off‑chain: development coordination relies on ECIPs, public dev calls, and do‑ocracy practices among contributing teams and organizations (ETC Cooperative, ETC Labs, IOHK contributors, Core‑Geth maintainers). There is no single corporate controller or CEO; instead multiple organizations and independent contributors collaborate on upgrades and client hardening. The network’s history includes significant security incidents—multiple 51% attacks and large deep reorganizations in 2019–2020 prompted operational changes (exchange confirmation policies, client hardening) and shaped the roadmap priorities toward increased client robustness and improved bridge/security tooling. Looking forward, ongoing work on client diversity (Fukuii trials), protocol upgrades (Spiral network upgrades), and institutional infrastructure is intended to strengthen resilience, interoperability, and custody options for both retail and institutional participants. Links - Website: https://ethereumclassic.org/ - Whitepaper: N/A - GitHub: https://github.com/ethereumclassic/ethereumclassic.github.io --- About the D-Score: BlockIndex.AI rates decentralization from 0 to 100 across node distribution, initial distribution, governance, age and history, and autonomy. Methodology: https://blockindex.ai/dscore