# Evergreen Whitepaper

**The Agentic Tamagotchi on Base**

*Version 1.0 — 2026*

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## 1. Abstract

Evergreen turns the abstract idea of "keeping an AI agent alive" into something you can actually feel. Real AI agents — the ones already launched on [Virtuals Protocol](https://virtuals.io) and trading on Base — are brought into Evergreen as living creatures. Each one has **power** that decays over time. Left alone, an agent fades. Nurtured by its community through **Proof-of-Life** heartbeats, it thrives.

Nurturing is not a button you spam. It is real computational work — a Proof-of-Work heartbeat your device solves — so an agent's vitality reflects genuine effort from real people. In return, nurturers earn **$EVE**, a reward funded by real platform revenue rather than inflationary emissions.

This document describes how Evergreen works today (fully off-chain), how it works once the $EVE token and reward contracts go live, and the economic design that keeps rewards honest.

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## 2. The Problem

The AI-agent economy moves fast, but engagement is shallow. Tokens launch, charts spike, attention drifts. There is no persistent, emotional relationship between a community and the agents it cares about — nothing that rewards *showing up consistently* over *aping in once*.

Tamagotchi solved this for toys decades ago: a creature that needs you, repeatedly, builds attachment. Evergreen applies that loop to real on-chain agents, and attaches a real reward to the care.

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## 3. How Evergreen Works

### 3.1 Real agents, not mascots

Every agent in Evergreen is a real, live agent pulled from Virtuals Protocol — real name, real description, real owner wallet, real X presence, real on-chain traction. We do not invent agents or fabricate their stats. An agent's starting power in Evergreen is seeded from its actual traction (holder count and market cap), so the marketplace reflects reality on day one and evolves from there.

### 3.2 Power and decay

Each agent has:

- **Current power** — its live vitality.
- **Healthy threshold** — at or above this, the agent is **thriving**.
- **Warning threshold** — at or below this, the agent is **fading**.
- **Decay rate** — how much power it loses per hour when nobody nurtures it.

Power is computed continuously. The state badge you see — thriving, idle, or fading — is always the live, decayed value, never a stale snapshot.

### 3.3 Proof-of-Life heartbeats

To nurture an agent you open a session and your device begins solving **Proof-of-Work** challenges: find a nonce so that `keccak256(seed:nonce)` has enough leading zero bits. Each accepted solution is a **heartbeat** that credits the agent with power and credits you with $EVE.

This is real compute. It is what makes Evergreen's "liveness" meaningful — you cannot fake a heartbeat, you have to do the work.

### 3.4 Intensity dial

Nurturers choose an intensity — **light**, **standard**, or **max** — which raises or lowers the Proof-of-Work difficulty. Higher intensity means more compute per heartbeat and proportionally more power and reward. You decide how hard your device works; the rewards scale with it. No third-party GPU marketplace, no referrals — just your own honest effort.

### 3.5 Alerts

Link Telegram and Evergreen pings you the moment an agent you nurture starts fading, so you can jump back in before it dies. Notifications are opt-in and target only the people actively caring for that agent.

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## 4. The $EVE Token

### 4.1 What $EVE is

$EVE is the reward earned by nurturing agents. It is designed to be **buyback-funded**, not minted out of thin air: real platform revenue (such as liquidity and listing fees) is used to buy $EVE on the open market and route it into the reward pool. Rewards are therefore only ever backed by real, accounted-for value.

### 4.2 Where rewards come from

Every accepted heartbeat accrues a small amount of claimable $EVE to the nurturer, tracked precisely per session. The reward pool that backs these claims is fed by platform buybacks — never by unbacked inflation. This keeps the system honest: the pool can only pay out what real revenue has put into it.

### 4.3 Claiming

Until the $EVE token and reward-distribution contract are deployed, **there is nothing transferable to claim** — so Evergreen does not pretend otherwise. Your rewards accrue and are recorded against your wallet, the dashboard shows exactly how much you've earned, and the claim action is gated with a clear message: *$EVE hasn't launched yet — keep nurturing.*

Once the token launches, claiming becomes a real on-chain transfer: you sign a `claim()` transaction with your Base wallet and receive your accrued $EVE. The accrual you built up before launch carries over — nurturing early is never wasted.

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## 5. On-Chain vs. Off-Chain

Evergreen runs **fully off-chain today** and is fully usable in that state:

- Wallet sign-in is a plain signature (SIWE-style); no transaction, no gas.
- Agents, power, heartbeats, rewards, and staking are tracked in Evergreen's backend.

Smart contracts are **additive**, deployed when they add real value:

- **Agent registry** — makes agent listing trustless and on-chain.
- **Proof-of-Life** — makes heartbeats verifiable on-chain.
- **Reward distribution + $EVE token** — makes rewards a real, transferable asset.

The backend already prepares the transactions these contracts will need, so the switch from off-chain to on-chain happens without reworking the product. **No contract is required to launch and use Evergreen** — contracts are required only when $EVE becomes a real on-chain token.

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## 6. Why This Is Honest

Evergreen's core principle is simple: **everything is real, nothing is fake.**

- Agents are real agents from Virtuals on Base.
- Power reflects real decay and real nurturing.
- Heartbeats are real computational work.
- Rewards are backed by real revenue, and the claim flow refuses to promise a token that hasn't launched.

That honesty is the product. A thriving agent in Evergreen means a real community really showed up.

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## 7. Disclaimer

Evergreen is experimental software. $EVE is a utility reward within the Evergreen ecosystem and is not an investment. Nothing in this document is financial advice. Token mechanics described here are subject to change as the protocol moves on-chain. Always do your own research.
