Sanad: why this level?
A credential is only as good as the chain behind it. Here is one sample chain, and one published rule that turns it into a level. You are the verifier: choose how strict to be and watch the answer, the confidence and the explanation change. Nothing is hidden and everything can be recomputed.
The sample credential
Skill: Real analysis I (course B09), the epsilon-delta limit and its proofs. Claimed level: 4. Holder: a learner known only by a random id.
The verifier's policy (chosen by whoever checks, never by the issuer)
Start from:
The chain behind the level
Read it from right to left: people sign marks, marks attest evidence, evidence supports a claim, the claim names a skill. Click or press Enter on any box to see its hash and the rule that used it. A struck-through box with a cross was ignored under your policy.
Select a box in the chain.
How the answer was reached, step by step
Hidden skills (inferred, and yours to keep private)
If you are fluent in this skill, the topic map suggests you probably know what it rests on. These are inferred, not claimed. Each loses one level per step back and some confidence. Nothing is shared unless you choose to publish it, and in this prototype even that choice stays in your browser.
What this does not prove
- It does not prove the person did the work alone, or is who they say. A live sitting makes cheating harder; it does not make it impossible.
- It does not prove the examiners were competent or honest. It makes their marks, their experience and their agreement with each other visible, and each verifier decides whom to trust.
- A matching hash shows that data was not changed after it was sealed. It does not show the data was true.
- In this version the signatures are placeholders, and every person and sitting here is invented.
- Inferred skills come from a map of prerequisites. People know things the map does not say, and forget things it does.
- No qualification is awarded and nothing here is recognised by any ministry or school.
Map of topics · University area · The rule is written in docs/recognition/ and implemented in site/src/lib/recognition/ with its tests.