Private identity
An anti-bot check and a passkey create your pseudonymous key. We ask for no email, password, or social profile and use no cookies.
CLUB QUIZ · COURSE CHALLENGE 02
Prove you can build LLM systems.Then prove it under pressure.
A competitive challenge maintained by working professionals. 2,048 private questions cover all 93 lessons; every attempt preserves difficulty while rewarding sound decisions and real speed.
Running a team or class? Open a Live competitionPUBLIC PRACTICE · 5 RETIRED QUESTIONS
Try the format before competing
This is one local practice run. It uses questions outside the active bank, never enters the leaderboard, and creates no signed proof.
Zero cookies · no network · saved in this browserPractice completed
Illustrative score
- Accuracy
- Total time
Retired-question review
COMPETITIVE ATTEMPT
One edition. One attempt. Verifiable evidence.
Open practice does not consume your attempt. The official challenge only requires a pseudonymous passkey. The result stays private unless you later choose to attribute it to a profile.
Passkey sessions
Maximum 5 · 24 h inactivity · 30 days absolute
Quiz privacy and data
Download a complete copy or erase the passkey and all associated data.
Preparing the verified challengeChecking the edition and your attempt state…
The challenge is unavailable right now
STEP 1 · PARTICIPATION KEY
Create a private passkey
It creates no account and asks for no email. The passkey prevents this credential from repeating the edition.
Zero cookies. The passkey reveals no name, email, or biometrics.
Private anti-bot checkIt is completed before creating or confirming your passkey.
The check did not complete. Retry it to continue.
STEP 2 · ONE ATTEMPT
Your edition is ready
20 private questions, delivered one at a time. You cannot restart this edition. You may resume while time remains.
PRIVATE PASSKEY
- QUESTIONS
- 20
- TIME
- 30 min
- BANK
- Speed weighs heavily when your answer is correct
- Four questions are expert level
- The same timer and scoring criteria for everyone
- After finishing, see each miss and the exact lesson
Question 1/20
Time remaining--:--Response time00:00.0
Select one answer.
Every answer retains the exact moment when it was accepted.
VERIFIED EVIDENCE
Verifiable result
0PTS
- Accuracy
- Total time
- Correct
Result by competency
PRIVATE REVIEW
Your misses, linked to the exact lesson
This review is private and opens only with your passkey. It never appears in the public proof, ranking, or certificate.
ACHIEVEMENT UNLOCKED
Take it to your professional profile
Your result clears the required level. Download the verifiable certificate or open Licenses & certifications; the fields are copied so you only need to paste them.
CERTIFICATE IDENTITY REQUIRED
Link your @handle to issue it
Your private proof is already valid. The named PDF is generated only after you publicly attribute the result to a verified social profile.
CLUB DISCORD · VERIFIED ACCESS
The result proves your level. Your profile opens the door.
The Quiz proves what you know. A verified professional profile makes every member accountable without publishing their score.
- Your level comes only from the signed result
- Linking a profile neither publishes the result nor enables email
- 01Quiz cleared
- 02Profile verified
- 03Rules accepted
YOUR ROLE—
Checking the three requirements…
Verify a professional profile
Choose a network. We retain its stable identifier to prevent duplicate identities; your result stays private.
Identity verified for access. It remains private unless you separately authorize publication.
One clear rule before you enter
Your acceptance is bound to this profile and this version of the rules.
Access activeYou are already in the Club with this level.
Discord will see your account and role. Your exact score is not published. Privacy
Checking the three requirements…Club Discord access is not open yet.Opening Discord…VERIFIED EVIDENCE
HOW IT WORKS
Speed matters, but it cannot hide mistakes.
Private, variable questions
Receive 20 questions rotating across eight competencies and four tiers, including four expert problems. Order and options change.
One shared timer
Questions arrive one at a time. Response time is recorded, and speed also matters when you are correct.
You choose attribution
The result remains private by default. Clear the required level to unlock a certificate, add it to LinkedIn, or share a CTA result card.
VERIFIED LEADERBOARD
Only results their authors choose to sign with a profile.
The leaderboard only includes results their authors chose to publish. It never shows private participants or profiles without consent and moderation.
RankProfessionalScoreAccuracyProof
CURATED IN PUBLIC
The course improves through PRs. Active answers never leave the private system.
Professionals propose lessons, labs, sources, and questions in the open repository. Every accepted contribution preserves authorship and its GitHub profile. The web edition is generated from that reviewed knowledge; competitive solutions and active keys stay private.
What is public
Curriculum, labs, quality criteria, history, sources, and authorship for every contribution.
What stays private
Active-bank keys, per-attempt selection, abuse signals, and correction material that is still in use.
What you can prove
Edition, score, accuracy, speed, question-set hash, curators, and cryptographic signature.
Important questions
Can I repeat the official challenge?
Not with the same passkey in one edition. Someone could create another credential; a passkey proves control of a key, not universal human identity. The same social profile cannot publish two results either.
Why is there an open practice run?
It lets you test the format and scoring without spending the competitive attempt. It uses five retired questions outside the active bank.
Do you use cookies or your own fingerprint?
We use no cookies and create no persistent fingerprint. Security checks are not used to build a learning profile or track you outside the Club.
Can random fast answers win?
No. A wrong answer scores zero, and a minimum level of correct answers is required to qualify for the leaderboard.
Can I add the achievement to LinkedIn?
Yes. Clear the required level to receive a PDF certificate, credential ID, and verifiable URL. The button opens LinkedIn’s official Licenses & certifications form and lets you copy every field.