Rinkya Authentication
Authentication for investor-grade collectibles
Rinkya has helped people buy serious collectibles from Japan for 25+ years. Authentication is the next layer: evidence capture, tamper‑evident sealing, and a public record designed for resale scrutiny.
Every completed authentication results in a public, verifiable record tied to the physical item.
Collectibles have matured into a serious asset class. As values rise and resale scrutiny increases, documentation, condition evidence, and post-authentication integrity matter more than hype.
Serious buyers want evidence: condition, materials, and a record tied to the physical objectso resale isn't "trust me."
Our output is built to survive marketplace and auction scrutiny: documented imaging + tamper-evident sealing + verifiable record.
Apply → ship → inspection → seal + record → return.
Applied to a tamper‑evident seal. Placement is determined case‑by‑case.
Coming soon. Physical Certificates of Authenticity will be available after launch.
Japanese collectibles across categories, backed by decades of sourcing, handling, and verification experience.
If your item isn't shown above, contact us. We review additional categories and edge cases on a case‑by‑case basis.
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Scan the QR code on the holographic label or enter the record ID below to view the verification page. The page shows the current status and the evidence captured during inspection.
Demo UI only wire to your /verify route.
Start with photos and details. We'll confirm eligibility, tier, and shipping instructions. Customer pays shipping to us. Return shipping is included for U.S. addresses (international billed separately).
Our full Terms & Conditions govern all authentication services, submissions, and outcomes. Please review them before applying.
View full Terms & Conditions →UV fluorescence can reveal repairs, varnishes, inks, and certain material differences that aren't obvious under normal lightwithout damaging the item.
Magnification helps document linework, pigment behavior, printing patterns, paper/film texture, and signs of alteration. We capture micrographs for the record.
The seal ties the verification record to the physical object. If the seal is broken, the record shows it's no longer in the certified state.
IPFS (InterPlanetary File System) is a public, decentralized storage network. We publish the evidence bundle to IPFS so the record exists independently of us and remains publicly accessible over time. The blockchain anchor timestamps the record hash, making any changes detectable. Together, they ensure the item has a permanent, verifiable record tied to its ID even if Rinkya were ever offline.
No. We require physical submission for certification tiers because the seal + record must be tied to the physical object.
Archival repacking depends on the collectible's materials and construction. When included, we use museum‑grade, acid‑free, breathable materials selected for the specific item (paper, film, paint, metal, wood, or mixed media).
Packaging may include inert sleeves, custom supports, and non‑reactive enclosures designed to reduce handling stress while allowing the item to breathe. Advanced and Expert tiers include archival repacking by default unless you explicitly opt out. Basic tier items are only opened or repacked if required to complete authentication, and we will always contact you for approval first.
We can review signatures as part of an object-based certification, but we do not offer "signature-only" authentication as a standalone service.
If evidence is insufficient, we may return an inconclusive outcome rather than a pass/fail statement. (Final fee rules TBD.)
We collaborate with category specialists to provide expert authentication across collectible domains.
Have deep expertise in a collectible category? We can help you launch an evidence-based certification workflow using our record, sealing, and chain-of-custody framework.
Your brand + your expertise, backed by our record system and tamper-evident sealing.
Intake, imaging, evidence bundling, immutable hashes, and a clean verification page.
Tell us your category, standards, and volume. We'll propose a pilot.
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