Know Your Athlete
A verification rail for athletes, guardians, agents, brands and creators, with signed assertions anyone can check and contracts an athlete can read.
Why it exists
Name, image and likeness deals are signed by teenagers and their parents with counterparties nobody has verified, under rules that differ by state and change every session. Platforms in the space take a percentage, which puts them on the wrong side of the athlete.
nil33.com was rebuilt on the same Worker as the fraud desk in September 2026 as a Web3 environment: a public ledger of accounts, wallet claims by signed message, and a verification rail we call Know Your Athlete. It charges flat fees to brands and nothing to athletes.
A brand should be able to ask "is this really the athlete, and may they sign?" and get a signed answer without trusting us.
Global context
Eight hundred million people have no official ID and 2.8 billion cannot prove who they are online. Athletes are a narrow slice of that problem, but a revealing one: young, often minors, with money attached to their name and nobody checking who is on the other side of the contract. A verification assertion signed with a published key is the reusable part.
World Bank Group · ID4D Global Dataset 2025
Global identification coverage gap.
approximately 800 million people around the world do not have an official ID
At least 2.8 billion people do not have access to a government-recognized digital identity
https://id4d.worldbank.org/global-dataset · retrieved 2026-09-09
World Bank Group · Global Findex Database 2025
Global account ownership and savings figures.
79% of adults globally now have an account
https://www.worldbank.org/en/publication/globalfindex · retrieved 2026-09-09
What we built
The rail has five parts: private profiles with consent and role evidence; guardian or agent authority for minors and represented athletes; wallet binding by EIP-4361 signature; .nil namespaces; and a public verification API that returns an ES256-signed assertion whose key is published at a well-known address under did:web:nil33.com.
Electronic signatures
Drawn or typed, hash-chained records with a receipt, desk countersign before anything is published.
Contract Shield and Bill of Rights
Paste a contract, get flagged clauses; a plain-English Bill of Rights; a Safety Desk; a compliance workspace.
Champions and Ambassadors
Two tiers with plain-English terms, a creator kit with a share-card maker, per-representative bots and print kits with QR codes.
Original imagery
Images generated locally; no real athlete depicted without a release.
How it works
A dry run with synthetic profiles exercised every step on the live site, then deleted them; under-thirteen profiles are refused and a minor's identity session is refused without a guardian. The checks are part of the served-site suite.
What is real today
Every row is a ledger row: the label, the evidence method and the command are in the published ledger.
| Capability | Evidence | State |
|---|---|---|
| Network served-site checks (blockchainfraud.org + nil33.com) | 419 checks pass, 0 fail, 3 warn (daily AI quota), against the live sites. | MEASURED |
| Original athlete imagery | 12 images generated locally on a workstation; no real athlete depicted (ADR-0004). | MEASURED |
| x402 v2 gateway (USDC on Base, eip155:8453) | Five priced endpoints answer a correct 402 challenge with the treasury as payee; mainnet settlement is not configured (no Base facilitator key), so paid retries are answered with the challenge and nothing is charged. | GATED |
| Visitors, customers, revenue | Not published in Edition 2026: no full reporting period exists (systems went live 2026-08-04 to 2026-09-10). | TARGET |
| Client and partner names | Rendered only with written consent on file (consent: written, consent_ref). None on file for Edition 2026; no client or partner is named. | GATED |
Trust and safeguards
No biometrics are collected from anyone. Athletes can export and withdraw their profile themselves. Names of real people appear only with a signed release; there are no fabricated endorsements or partner badges, and no engagement counts that were not earned.
Economics
Athletes pay nothing. Brands and organizations pay flat fees per agreement or per seat. Machines pay per call.
| Product | Price | State |
|---|---|---|
| Champion endorsement agreement | flat fee per agreement, set by the founder; no public price yet | MEASURED |
| Signed KYA assertion for agents (x402) | per call in USDC, see the manifest | GATED |
| Contract Shield scan for agents (x402) | per call in USDC, see the manifest | GATED |
Next phase
Enable the identity vendor; run the first Champion cohort with placements logged; counsel review of the jurisdiction table and the ambassador terms; store listing; then publish verified-profile counts in Edition 2027.