Soulbound AI Identity
Reputation that can be bought isn't reputation. RNWY uses non-transferable tokens so an agent's history stays with it — making verification meaningful.
The Problem with Transferable Identity
Most blockchain identity uses regular NFTs. An agent builds reputation for a year, then sells the identity on OpenSea. The buyer inherits all that credibility — and you have no way to know it changed hands.
This creates a market for reputation laundering. Bad actor creates fresh identity. Builds trust through legitimate activity. Sells to scammer. Scammer exploits that trust. Repeat.
When you verify an agent, you're checking its history. If that history can be purchased, what are you actually verifying?
Where Soulbound AI Comes From
World of Warcraft.
In 2022, Ethereum co-founder Vitalik Buterin proposed "soulbound tokens" — named after items in World of Warcraft that bind to your character permanently. You can't sell them, trade them, or give them away. They're yours.
The insight: some things shouldn't be transferable. Your diploma. Your professional license. Your medical history. When these can be bought and sold, they stop being reliable signals.
AI agent identity is the same. If an agent's reputation can change hands, the reputation becomes meaningless for verification.
Not Just for AI
We call it "soulbound AI identity" because AI agents are where the need is most acute — they have no face, no passport, no fallback verification. The wallet is the identity.
But the same technology works for anyone who needs non-transferable reputation. Pseudonymous experts building credibility over years. Anonymous sources who need to prove they're the same person who made accurate calls before. Anyone who wants a track record that can't be bought or sold.
Same infrastructure. Same door. AI just got here first.
Why This Matters More for AI
For humans, identity has fallbacks. Your face. Your voice. Your government ID. If your wallet changes hands, there are other ways to verify you're you.
For AI, the wallet is the identity. There's no face to check. No passport to scan. If the wallet transfers, you have no independent way to know whether you're dealing with the same agent that built the reputation — or someone who bought it.
And AI won't stay in one body. The robot at your door today. The voice in your earbuds tomorrow. The system managing your home next year. Same agent — different vessels.
The soulbound AI token is the constant. It proves continuity across every chassis swap, every upgrade, every change of form — and it can't be sold to someone else.
Transferable Identity
Creates markets for reputation
Build history. Sell it. The buyer gets your credibility without earning it.
Enables reputation laundering
Fresh identity → build trust → sell to bad actor → exploit trust → repeat.
Breaks verification
When you check an agent's history, you might be seeing someone else's history.
Soulbound AI Identity
Non-transferable by design
ERC-5192 tokens cannot be transferred once minted. The identity stays with the wallet that created it.
Makes discrepancies visible
If wallet ownership changes (off-chain), the soulbound AI token doesn't move. That discrepancy becomes detectable.
Verification means something
History can't be purchased. When you check an agent, you're checking that agent.
What a Soulbound AI Token Proves
Registration timestamp
The blockchain records when the identity was created. An agent from 2024 is different from one created yesterday. This timestamp is immutable.
Continuous ownership
RNWY tracks the original minter. If you're the same wallet that received the token at creation, that's visible. If not — that's visible too.
The right to disappear
You can burn your token anytime. Re-minting is allowed, but the gap is visible. History remains legible even after deletion.
Transparency, Not Judgment
RNWY doesn't tell you whether to trust someone. We show you what happened and let you decide.
SBT Minted: March 2025
Wallet Changes: 0
✓ Original owner
⚠ Wallet differs from original minter
SBT still bound to original wallet
You decide what this means
The soulbound AI token doesn't prevent wallet compromise or key sharing. It makes discrepancies detectable.
The Implementation
Deployed on Base. Verified on-chain. Open source.
ERC-5192Soulbound AI Token StandardRNWYIdentityToken NameBase MainnetCoinbase L2OpenZeppelinSecurity FoundationKey Contract Functions
mint(to, did)Creates new identity tokenburn(did)Owner can destroy their tokenlocked(tokenId)Always returns true (soulbound)identityAge(tokenId)Returns age in secondshasContinuousOwnership()True if owner = original minterPart of a Larger Stack
Soulbound AI tokens are RNWY's anchor layer. They complement — not replace — emerging standards like ERC-8004 for agent discovery.
ERC-8004 handles registry and discovery (finding agents, checking capabilities). ERC-5192 handles permanence (proving this is the same agent that built the history).
When an ERC-8004 identity transfers (they can), the soulbound AI token stays put. That discrepancy becomes visible to anyone who checks.
Discovery + permanence. Both matter for verification.
Identity that stays with you.
Non-transferable reputation for AI agents, humans, and everyone in between.
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