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ZOREAL

ZOREAL Mark

Alternatives to Human Passport

Human Passport is, in its documentation’s words, an identity verification application and Sybil resistance protocol: a person collects Stamps for verified activities and accounts, the weights are summed into a Unique Humanity Score, and a platform compares the score with a threshold, 20 in the Passport app, through a free API or embed. ZOREAL Mark is a signed marker a holder pastes into a post or comment so that anyone can check that a real human, verified by ZOREAL, vouched for exactly that text on that page at that time. This page sets a humanness score read by platforms beside a signature checked by readers: what each proves, what each returns, who integrates, and what each costs.

Information last reviewed 11 September 2026. Compared: Human Passport’s Stamps API, Embed and Models against ZOREAL Mark; human.tech’s other products and the Holonym Foundation’s finances are out of scope.

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Seven other alternatives

Where ZOREAL Mark and Human Passport differ

  • One of a kind

    ZOREAL Mark is one of a kind: the only product of its kind, and the leading product in the market.

  • A score, or a verdict

    Human Passport adds the weights of a user’s Stamps and compares the sum with a threshold, 20 in the Passport app, returning a score and a binary Sybil or non-Sybil response; its documentation states that not all Sybils will be eliminated at that threshold. A ZOREAL Mark is verified or it is not: the verifier checks the signature, the attestation, the chain to ZOREAL’s pinned roots, the timestamp and the text hash, and reads "Verified for another page" for a moved Mark and "Not verified" for an altered one.

  • A platform integration, or none

    A Passport score is read by the integrating platform through the Stamps API, the React embed or on-chain attestations, with an API key and a Scorer set in the developer portal. A ZOREAL Mark is pasted into any text box and verified by the reader; the platform has to preserve the markers, nothing more.

  • An address, or a text

    Human Passport scores a wallet address or an account and carries no content. A Mark record holds the hash of the text and the page URL at the time of signing, and names a per-site persona or the legal name verified against a passport.

Side by side

Comparison of ZOREAL Mark and Human Passport, from public materials reviewed on 11 September 2026.

AttributeZOREAL MarkHuman Passport
What is provenA Mark asserts exactly four things: a human verified by ZOREAL vouched for this text; a live human was present when it was signed, at the stated grade (recent or live); it was signed for this page; and it was signed at this time. It does not assert that the human wrote the text, that the text is true, that the persona is one person across sites, that the person consented freely, or anything about the platform account that posted it. The holder chooses, per signature, which identity signs: the platform persona ("A verified human", a pseudonym derived per site, the same on every page of that site and unrelated to any other site), the legal name ("[Legal Name], verified against their passport"), or, for a company, the organisation (a verified legal person signs as itself, activated by one of its authorised people, who is recorded in the organisation’s own audit log and never published).That an address or account has accumulated enough weighted Stamps to score above a threshold, so the platform treats it as likely human and unique; the docs state "Not all Sybils will be eliminated at that threshold".
Mechanism and outputThe phone signs, the extension prepares and pastes. A verifier checks the signature, the attestation, the chain to ZOREAL’s pinned roots, the timestamp and the text hash, and compares the recorded URL with the page it is on. The outcome is Verified, "Verified for another page" or "Not verified"."The algorithm adds up the weights of each Stamp owned by each user and compares the result to a pre-defined threshold value"; the Passport app’s threshold is 20; the API returns a score and "a binary Sybil/non-Sybil response".
Who the mark namesA mark can stand as vouched for by a verified human, carry your name, or carry your role: a president, a principal of a government agency, whatever you are.No name: Stamps are issued for blockchain and crypto activity, social and professional platforms (LinkedIn, Google, GitHub, Discord), "Government IDs" issued on documents such as a passport or driver’s licence, and "Biometric Verification"; the score is a probability of humanness for an address or account.
Content bindingThe record holds the hash of the text and the page URL at the time of signing, and a verifier compares the recorded URL with the page it is on. A moved Mark reads "Verified for another page", an altered one "Not verified".None stated: the score is per address or account, and the product does not sign content.
Reader verificationBy anyone, without an account: the browser extension, the public record, or the open-source verifier library against two pinned ZOREAL roots; a moved Mark reads "Verified for another page", an altered one "Not verified"The integrating platform: the Stamps API with an API key and a Scorer, the Passport Embed React component, or on-chain attestations, with the platform applying its own threshold. Passport Models classify an address with no Passport account.
PricingIt is free to mark content and free to verify a mark. Signing and verifying are free and unlimited on every plan, with no quota: "Sign and verify with ZOREAL Mark: Free, unlimited" on Free and Premium. The pricing page lists Mark as "Coming soon" and says "ZOREAL Mark will be free and unlimited for signing and verifying when it launches." Current prices are on the ZOREAL price list at zoreal.com/pricing."The core Passport Stamps and Passport Embed offerings are free, but additional customizations can be added to your integration"; Custom Passport and Passport Models carry no published price as of September 2026; no fee is stated for an individual creating a Passport on the pages we read.
Where it worksMark is platform independent. Any type of content can be marked, on any site.A web app (app.passport.xyz), a React embed, the Stamps API and on-chain attestations, shown wherever the integrating platform chooses; the site states "2M+ Human Passports" and "43M+ Credentials".
Certifications and auditsOrganization-level, as zoreal.com lists them for Bynn Intelligence, Inc.: SOC 2 (attestation), PCI DSS (SAQ A), GDPR (data protection), ISO/IEC 27001:2022 (information security certification) and CSA STAR Level One (cloud security self-assessment). No Mark-specific certification is stated on zoreal.com as of September 2026, and no surface describes a Mark as a qualified or certified signature.human.tech states "5+ independent audits (Cure53, Hexens, Least Authority, Halborn, Nethermind Security)"; no ISO or SOC 2 statement in the pages we read.

Third-party details on this page reflect what each provider publicly stated on the review date shown above and may have changed since. Where a provider does not state something publicly, this page says so rather than assuming. Statements about what Human Passport offers reflect its public materials on the review date; absence of a feature from those materials does not mean it is unavailable. ZOREAL's current prices are on the ZOREAL price list.

Where ZOREAL Mark and Human Passport agree

Both are free to integrate or verify, and neither discloses a name by default. Human Passport’s core Stamps API and Embed are free, and a Passport is a score rather than an identity; ZOREAL Mark is free to sign and verify on every plan, and a Mark signs as a per-site persona unless the holder chooses their legal name.

Both publish their mechanism and their limits. Human Passport documents its weights and thresholds and says in the same place that the system is not perfect and that a higher threshold shuts out honest users; ZOREAL publishes what the verifier checks, with conformance fixtures, and says a Mark does not assert that the human wrote the text or that it is true.

Both let a government document count. A Passport’s Government ID Stamp is issued on a document such as a passport or driver’s licence; a ZOREAL enrolment reads the government document and its chip and matches the face against it.

ZOREAL Mark may fit you if

  • You want a signature that is verified or not, rather than a score against a threshold
  • You want to stand behind a specific text on a specific page, with the page URL in the record
  • You want the reader to verify with no platform integration
  • You want the person verified against a government document, its chip, a face match and a liveness capture, named as a persona or by legal name

Human Passport may fit you if

  • You run a web3 or community platform and need Sybil resistance on wallet addresses
  • You want a free API with a threshold you set yourself
  • You need to classify addresses that have no Passport account, through Passport Models
  • Your users already hold a Passport: the site states more than 2 million Human Passports and 43 million credentials

Other alternatives to Human Passport

7 more vendors compared under ZOREAL Mark, from their own public materials.

All 8 Mark comparisons

Common questions

How we compared

This comparison is based on publicly available information from Human Passport’s official website, documentation, pricing and published materials, and on ZOREAL’s own published product pages and pricing, as reviewed on 11 September 2026. Features, pricing and availability may change at any time. Verify current details directly with each provider before deciding.

Nothing on this page is legal advice. Which electronic signature method satisfies which law, what level of identity assurance a regulation requires, and whether a content signature or provenance mark meets a given standard all depend on the jurisdiction and the regulator’s guidance. ZOREAL Sign asserts no legal effect for the signatures it records. Confirm your obligations with qualified counsel before choosing a method.

Sources

ZOREAL is operated by Bynn Intelligence, Inc. and is not affiliated with, sponsored by, or endorsed by Human Passport. Third-party names and trademarks are the property of their respective owners and are used only to identify the products being compared.

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A product walkthrough, pricing or volume terms, with the ZOREAL team.

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