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NIP-0004 v3.0.0 fork - block 853,400

Ethereum-compatible. NOVA-native. Proof of Work.

Ethernova is turning the EVM into a human-first protocol layer: identity, content ownership, mailbox messaging, sessions, lifecycle economics, and app primitives built into the chain instead of bolted on later.

View Fork Countdown Download v3.0.0 Read Docs

Quick links: RPC · Explorer · Node Explorer · Live Stats

Mainnet releasev3.0.0
Fork block853,400
Upgrade typeMandatory hard fork

Main Documentation

Public documentation for users, miners, operators, and developers. The v3.0.0 release turns NIP-0004 from a devnet track into a mainnet-ready protocol upgrade.

The Main Docs of Ethernova

Official long-form documentation for the network, its mining model, public endpoints, ecosystem, and NIP roadmap.

Open Docs Page Open PDF

Need editable format? Use the DOCX from this download link.

NIP-0004 Launch Packet

Release
v3.0.0
Activation
Block 853,400
Scope
12 protocol phases
Binaries
Linux + Windows static builds
Countdown
https://ethnova.net/stats.html

From Smart Contracts to Protocol Objects

Ethereum made contracts programmable. Ethernova keeps EVM compatibility, then moves the primitives every serious app needs into the protocol itself.

01

Human-first objects

Identity, content references, mailboxes, and sessions become native protocol objects instead of fragile app-specific databases.

02

Deterministic async apps

Deferred execution and session settlement give builders a path for messaging, chat, channels, and app workflows without breaking consensus.

03

State that has a lifecycle

Lifecycle tiers make abandoned state economically visible while keeping live storage intact and consensus-safe.

NIP-0004 / NOVA v3.0.0

The App Layer Fork

Not another token narrative. NIP-0004 is infrastructure: twelve protocol phases that make Ethernova a chain where apps can own content, pass messages, open sessions, meter resources independently, and run with explicit safety domains.

Mainnet activation scheduled

Block 853,400 is the v3.0.0 protocol gate.

Operators upgrade before the fork. Pre-activation behavior remains compatible, then NIP-0004 rules activate at the agreed block so every node computes the same state.

Releasev3.0.0
Chain ID121525
ConsensusEthhash PoW
F1

Protocol Object Trie

Native object storage foundation for app-level protocol state.

F2

Deferred Execution

Queue-based async processing without introducing non-determinism.

F3

Content Registry

Content references, verification, pagination, rent, and expiry.

F4

Mailbox Primitive

Protocol mailboxes, deferred delivery, lifecycle, and anti-spam paths.

F5

State Lifecycle

Active, warm, cold, and archival economics for long-lived state.

F6

Domains + Capabilities

Domain 0/1/2 separation with capability narrowing across calls.

F7

Sessions / Channels

Bilateral off-chain state exchange with on-chain settlement hooks.

F8

Developer Tooling

SDK-oriented paths so builders can use the new primitives cleanly.

F9

NIP-0003 Chat Rebase

Real app proving ground built on the protocol primitives.

F10

Multi-Dim Metering

Resource lanes so one workload does not blindly punish another.

F11

App Precompiles

Native app helpers for protocol-level execution paths.

F12

Opcodes + Finalization

Final low-level hooks and regression coverage for the complete track.

What Ethereum leaves to apps

  • Every app reinvents identity and reputation.
  • Every messaging system becomes an external service.
  • Every content registry is another contract and indexer stack.
  • State grows forever unless users pay complex cleanup costs.
  • Permissions are mostly application discipline, not protocol boundaries.

What Ethernova moves into the protocol

  • Protocol objects for identity, content, mailbox, and sessions.
  • Native asynchronous execution paths for real user workflows.
  • Lifecycle-aware state economics before bloat becomes permanent.
  • Execution domains and capability bitmasks as a safety gate.
  • EVM compatibility for builders, PoW finality for miners.

Built boring where consensus matters. Built wild where apps matter.

NIP-0004 is fork-gated, regression-tested, and designed so old Domain 0 contracts stay boring while new app domains unlock the next layer.

CompatibilityDomain 0 unaffected
SafetyCapability narrowing
AppsChat, content, sessions
OpsStatic node binaries

What is Ethernova?

Ethernova is CoreGeth-based, fully EVM-compatible, and mining friendly with excellent Windows support.

It is engineered for stable mining operations, rapid onboarding for developers, and a community-driven network secured by POW.

Network Info

Everything you need to connect to NOVA mainnet.

Chain ID / Network ID
121525
Ticker
NOVA
Algo
Ethhash

Mining

Mine NOVA with your GPU using Ethhash algorithm. Solo or pool mining available.

Ethernova uses Ethhash (Proof of Work) with a 10 NOVA block reward. Mine with any GPU that supports Ethhash. Join the Telegram for mining setup help and pool recommendations.

Mining Help on Telegram

Exchanges

Trade NOVA on these exchanges.

Price (USDT)
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Gatevia

Trade NOVA/USDT on Gatevia Exchange with limit and market orders.

Trade on Gatevia

KlingEx

Trade NOVA/USDT on KlingEx, a professional crypto trading platform.

Trade on KlingEx

Ecosystem

Projects and services integrated into the Ethernova network.

SmartiecCoin (SMT)

SmartiecCoin brings CPU mining and optional transaction privacy to the NOVA ecosystem.

CPU Mining

Mine SMT using your CPU - no GPU or ASIC required. Accessible mining for everyone.

Private Transactions

Send private transactions for enhanced privacy. Your transfers, your business.

Visit SmartiecCoin

Partners

Infrastructure providers and ecosystem partners supporting the Ethernova network.

XBiNodes

Professional blockchain infrastructure provider hosting a dedicated Ethernova RPC node. Sub-100ms response times, 99.9% uptime, and DDoS protection — keeping NOVA accessible to developers and users worldwide.

RPC
https://nova-rpc.xbinodes.com
Visit XBiNodes

RPC + Explorer

Official endpoints for the Ethernova mainnet.

Explorer

URL
https://explorer.ethnova.net

Browse blocks, transactions, and wallets in real time.

RPC Endpoints

Official
https://rpc.ethnova.net
XBiNodes
https://nova-rpc.xbinodes.com

Both endpoints respond correctly for balance, txs, and gas calls.

Node Explorer

URL
https://nodeexplorer.ethnova.net

Track node status and peer connectivity across the network.

Bootnodes

Track live node status and peer connectivity on the Node Explorer.

The Node Explorer provides real-time visibility into active nodes, peer connections, and network health.

Open Node Explorer

Install / Connect (MetaMask)

Add the Ethernova network to MetaMask using the exact fields below.

MetaMask Config

Network Name
Ethernova
New RPC URL
https://rpc.ethnova.net
Chain ID / Network ID
121525
Currency Symbol
NOVA
Block Explorer URL
https://explorer.ethnova.net

MetaMask Steps

PC

  1. Open MetaMask and select Networks.
  2. Choose Add network and select Add a network manually.
  3. Enter the exact fields from the config panel.
  4. Save and switch to Ethernova.

Mobile

  1. Open MetaMask and tap the network selector.
  2. Select Add network and choose Manual input.
  3. Paste the same fields and save.
  4. Confirm the chain ID / network ID is 121525.

Latest Release (v3.0.0)

Download the latest release from GitHub.

What's new in v3.0.0

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Download from GitHub All Releases

Roadmap

NIP-0004 is the foundation. After v3.0.0 activates, the next work is adoption: SDK examples, app demos, public developer testing, and ecosystem integrations.

Now: Mainnet Activation

Upgrade operators, keep public RPC/explorer on v3.0.0, and activate NIP-0004 at block 853,400 with the stats countdown visible to everyone.

v3.0.0Block 853,400

Next: Builder Proof

Publish example contracts and SDK flows for content references, mailbox messaging, sessions, domains, and app precompile usage.

Developer onboardingNIP-0004 examples

Then: Real Apps

Use NIP-0003 chat and community apps as proving grounds so the primitives are not just impressive specs - they become user-facing products.

ChatContentChannels

Leadership

Building a mineable EVM ecosystem with real utility - not empty blocks.

Core Team

Project Lead

Ethernova is a community-driven EVM network built to revive profitable POW mining and expand into a real on-chain economy. The core team focuses on stable infrastructure, mining-first incentives, and simple node operations (especially on Windows) - so builders can ship NFTs, tokens, and DeFi on a chain that actually gets used.

“

Miners are not an afterthought - they are the heartbeat.

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We are looking for

  • 🛰️ Node operators (public peers / bootnodes)
  • ⛏️ Pool operators
  • 🧠 Builders (NFTs, tokens, DeFi, tooling)

If you can run infrastructure or ship dApps, you are the kind of person this chain was built for.

Community

Join the builders and operators growing the NOVA ecosystem.

Telegram

Get announcements, support, and updates straight from the team.

Join Telegram

Social Channels

Track updates, community alerts, and core development progress.

Follow on X Join Discord GitHub

Call for Operators

We are actively seeking public node operators, pool operators, and builders to help bootstrap peers and expand the network.

FAQ / Troubleshooting

Quick fixes for the most common connection errors.

  • "Could not fetch chain ID" / "RPC error" - Verify the RPC URL exactly and try a different network (Wi-Fi vs mobile data).
  • Wrong Chain ID - Chain ID / Network ID must be 121525.
  • Explorer does not load - Confirm the exact explorer URL is https://explorer.ethnova.net.