Gallery · Tech — engineer with shippable, checkable proof · all personas
Tomás Rivera
A frontend engineer whose strongest evidence is live: open-source work and a performance case study. The dossier leans on links that actually resolve — or they never earn the linked tier.
Frontend Engineer — Buenos Aires, Argentina · dossier DSR-DFGF2A21
The evidence ledger — every claim carries its tier
Cut the checkout bundle size by 52% by code-splitting the React application
Linked — backed by a live external source we fetched and confirmed resolves.
Improved Largest Contentful Paint from 4.1s to 1.6s on the product page
Linked — backed by a live external source we fetched and confirmed resolves.
Shipped a design system of 40 components adopted by 6 product teams
Linked — backed by a live external source we fetched and confirmed resolves.
Live sources — fetch-checked so the “linked” tier is honest
Coverage against the target role — gaps named, not hidden
A forged artifact — cover letter · every sentence cites its claim
Cut the checkout bundle size by 52% by code-splitting the React application
← CLM-929EAR
Improved Largest Contentful Paint from 4.1s to 1.6s on the product page
← CLM-0GVFGC
Shipped a design system of 40 components adopted by 6 product teams
← CLM-1H506A
Honest AS 1.1 re-grade
7/8 original sealed artifacts pass the new profiles. Portfolio screenshot contrast: 15.42:1. Story bank: FAIL.
Honest re-grade of the sealed AS-1.0.0 artifact set. The original seal and original reports remain unchanged.
Repair brief — issued to the Forge
Craft axes — Claude critic
Craft axes — Claude critic
Craft axes — Claude critic
Machine read-back — the ATS PDF re-parsed
Fidelity: 100% · 0 fields lost. verified against Assay's deterministic parser and ATS format law — not a simulation of any specific vendor.
| Field | Source | Read-back | Verdict |
|---|---|---|---|
| name | Tomás Rivera | Tomás Rivera | survived |
| tomas.rivera@example.com | tomas.rivera@example.com | survived | |
| exp0.org | Mercado Libre | Mercado Libre | survived |
| exp0.title | Frontend Engineer | Frontend Engineer | survived |
| exp1.org | Auth0 | Auth0 | survived |
| exp1.title | Frontend Engineer | Frontend Engineer | survived |
Fictional persona — demonstration · real mainnet seal
Tomás Rivera is a fictional persona. The seal proves this dossier’s manifest is unchanged since sealing — it does not, by itself, prove any claim inside it. Each claim carries its own evidence tier.

