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Vyvon standards

Trust and evidence method

How Vyvon separates statements from proof, keeps every issuer visible, handles spam, and lets anyone check a badge without asking us.

Applies to this buildNetwork: Robinhood ChainUpdated October 24, 2026

Core rule. A badge is a statement by its issuer, never a fact about the subject. Vyvon shows who said it, when, and the fingerprint of what they kept as evidence, and leaves the judgement to the reader.

Owner note, binding on this product. Wallet activity is not proof that a human stands behind an address, and blockchain transactions do not by themselves prove a contribution was good. Credible reputation needs verification rules and protection against spam and manipulation, so both are built in below.

1. Every badge names its issuer

The roll stores the issuing address with each attestation and the site shows it first, before the badge name. There is no anonymous badge, no aggregated score and no ranking of wallets. If you do not know an issuer, open their own profile: what they received and what they issued tells you how much their word is worth.

2. Evidence is hashed, not uploaded

When you issue a badge, the note and link you write are joined into a short versioned text and hashed with keccak-256 in your browser. Only the hash goes on chain. Nobody can read your note from the chain, and anyone you share the note with can recompute the hash and see that it matches. Do not put private data in a note: the people you share it with can pass it on.

3. Subjects can decline, issuers can revoke

Anyone can attest to any address. That openness is what makes the system useful and what makes it spammable, so the subject of every attestation can decline it with one transaction, and the issuer can revoke it. Neither action deletes history: declined and revoked records stay readable, marked, and stop counting on the profile.

4. Self claims are counted apart

A wallet can attest to itself, for example to record a project it says it shipped. The profile labels these as self-reported claims and never adds them to endorsements. They are useful as a place to keep evidence, not as reputation.

5. Readers choose whom to trust

Each reader can mark issuers they trust. That list lives in their own browser, is never sent to us, and only changes what that reader sees: how many endorsements on a profile come from trusted issuers. Two readers can look at the same record and weigh it differently, which is the honest outcome.

6. What this cannot prove

7. Profiles are self-description

A profile is text the wallet signed about itself: a name, a short bio, focus areas and handles. The signature proves the address published it. The site may store it when storage is configured, refreshes it on every save and drops it after 180 days without one. A profile never adds to reputation.

8. Missions follow the same rules

The weekly community mission is computed from the date, so everyone sees the same one. Completion is read from the roll: an issued, received or declined attestation in that week. Missions pay nothing and award nothing beyond the record itself.

9. Check a badge yourself

Ask the issuer for the note and link, paste them below with the badge and subject, and compare the result with the evidence hash shown on the record.

Check an evidence hash

Everything is computed in this tab. Nothing you type is sent anywhere.

Enter the subject address to compute the fingerprint.