Both reduce sybil attacks — but they answer different questions. World ID proves a unique human exists. 5arz proves a real, attentive human did this specific thing — and signs it so anyone can verify.
Establishes global uniqueness ("one person, once") through an orb iris scan and a one-time enrollment. Built for proving a unique human exists.
Issues a signed credential that a real, attentive human performed a specific action, on a normal device — verifiable by anyone via public JWKS.
Knowing a unique human exists doesn't prove they did the impression, the task, or the click. 5arz proves and signs the act itself.
In June 2026 World (Tools for Humanity) launched AgentKit — tying an AI shopping agent to a verified unique person. It's real validation of the thesis 5arz has held from day one: as agents act on our behalf, the scarce signal is a real human behind the action. The difference is what gets proven, and how portable the proof is.
Ties an agent to a unique person — existence and uniqueness, enrolled through the orb. Answers "is a real, unique human behind this agent?"
Binds the human, the agent, and the payment into one signed credential and proves the work was fulfilled — no orb, verifiable by anyone via public JWKS. Answers "did a real human authorize this, and did a real human do it?"
5arz's proof is a plain ES256 credential any site, rail, or agent framework checks in under 1ms — no special hardware and no walled garden to enroll in first.
| Capability | Worldcoin / World ID | 5arz |
|---|---|---|
| Core question answered | Does a unique human exist? | Did a real human do this? |
| Proves a specific action happened | Not the focus | Yes — bound to the action |
| Special hardware required | Orb for verification | No — phone / browser |
| Biometric handling | Iris enrollment | On-device; only a signed attestation leaves |
| Covers attention + work + presence | Personhood-focused | Yes — all of them |
| Anyone can verify the credential | Via their system | Public JWKS, any JWT library |
| Ties an AI agent to a verified human | Yes — AgentKit (orb-enrolled uniqueness) | Yes — signs human + agent + payment together |
| Proves the commissioned work was fulfilled | Not the focus | Yes — Proof-of-Human-Fulfillment |
| Settles on agentic payment rails | — | Rail-agnostic — Agent Pay, Stripe, OUSD, USDC |
| Legal property class | — | UCC Article 12 + patents pending |
You need global one-person-one-account uniqueness and your users will complete a biometric orb enrollment.
You need to prove a human did something — an impression, a task, a wallet action — with a signed credential anyone can verify, no orb.
You want existence-level uniqueness and per-action proof. 5arz binds to a wallet on-chain and complements identity systems.
AgentKit (June 2026) ties an AI agent to a unique enrolled person. 5arz binds the human, the agent, and the payment in one portable signed credential and proves the work was actually fulfilled — no orb, checkable by anyone in under 1ms. Complementary, but 5arz is the portable per-action, fulfillment, and settlement layer for agentic commerce.
They overlap on sybil resistance but solve different problems. For anti-sybil without an orb, or to prove an action and not only existence, 5arz is the affirmative-proof option.
No. Real-time attention, liveness, and device attestation on a normal phone or browser. No orb, no central biometric database.
Yes. Identity/uniqueness systems answer "who/unique"; 5arz answers "did this human do this," and binds to a wallet on-chain.
Comparison based on publicly available information about Worldcoin / World ID as of July 2026, including World's June 2026 AgentKit announcement; products change, so verify current details with each provider. "Worldcoin" and "World ID" are trademarks of their respective owner (Tools for Humanity / the World project). 5arz is independent and is not affiliated with, sponsored by, or endorsed by Worldcoin or World ID. This page is informational and not legal advice.