Authentica: COA CertificatesAuthentica: COA Certificates

Live on App Store

A Certificate of Authenticity for every order, automatically

Authentica issues a serial-numbered, QR-verifiable Certificate of Authenticity the moment an order is paid. Your buyer, or a future owner, confirms the item is genuine from a verification page hosted on your own store. No wallets, no crypto, no blockchain, and never a fee per certificate.

  • Free plan. 50 certificates a month with the full designer. Starter is $7.99/mo, Pro is $19.99/mo.
  • Verification pages and emails in 15 languages. The admin is available in 13: English, German, Spanish, French, Italian, Polish, Czech, Danish, Swedish, Bulgarian, Japanese, Chinese and Arabic.
Authentica: COA Certificates
Install free on Shopify

Why merchants install it

What Authentica does for your store

A jeweller finishing a ring by hand

A certificate with every order

Certificates of authenticity issue automatically on every paid order, with numbered editions.

A jeweller soldering at a workbench

Proof anyone can check

A QR code on each certificate opens a verification page, with ownership transfer and provenance.

A craftsman at work in a shop full of leather bags

Designed to look like yours

A drag-and-drop designer with your logo, colours and fields; white-label verification on Pro.

How it works

Live in three steps

  1. 1

    Install free

    Add Authentica from the Shopify App Store. 50 certificates a month are free.

  2. 2

    Design your certificate

    Add your logo, colours and the fields your buyers expect.

  3. 3

    Issue on every order

    Certificates go out on paid orders, and you can certify past orders in bulk.

The screens your buyers and you will actually use

A real certificate, a real designer, a real verification page. No mockups.

01Auto-issue

Auto-issue on every paid order

A certificate is created for each item the moment an order is paid, with no work from you. Prefer to wait until fulfillment? Switch the trigger in one click.

  • A serial-numbered certificate for every item on the order
  • Issue on payment or on fulfillment, your choice
  • Shopify POS sales certify like any online order
  • A sample certificate is ready the moment you open the app
A Certificate of Authenticity issued automatically the moment an Authentica order is paid

02Designer

Design your certificate, no code

A real drag-and-drop designer with live preview. Your logo, colors, custom fields and wording, 30-plus fonts, a custom seal upload, light and dark themes, and paper sizes ready to print.

  • Drag elements anywhere on the canvas
  • Your logo, seal, colors and custom fields
  • A4 and US Letter, ready to print
  • What you design is exactly what buyers receive
The Authentica drag-and-drop certificate designer with a live preview

03Niche presets

A starting point built for what you sell

Choose your niche and the designer auto-fills wording, fields and a starter layout built for it, from jewelry to trading cards to fine art. Carat and metal for jewelry, edition and medium for art, grade and set for cards.

  • Presets for ten niches plus a general one
  • Suggested custom fields for each niche
  • Every field stays editable
  • Numbered limited editions and custom serial formats
Authentica certificate presets for jewelry, watches, sneakers and more niches

04Verification

QR verification, anywhere

Every certificate gets its own verification page and QR code. Buyers verify instantly with no account and nothing to install, and you watch verification insights come in: scan trends and your most verified items.

  • A verification page on your own store
  • No account, no app, no wallet for the buyer
  • Verification page in 15 languages, including right-to-left Arabic
  • Scan trends and top verified items in your admin
A buyer verifying an Authentica certificate by QR code on a phone

05Provenance

Prove provenance and ownership

Record ownership transfers when an item is resold or gifted, so the certificate follows the item to its new owner. Buyers can report a suspected problem, and a refunded item is revoked automatically.

  • Ownership transfer on resale or gift, with you deciding who can transfer
  • A provenance trail of every previous owner, with names hidden if you prefer
  • Report a problem from the verification page
  • Revoke on refund or cancellation, or never, your choice
Ownership transfer and provenance trail on an Authentica certificate

06Labels

Printable QR labels and scan-to-verify packing slips

Print QR labels for products and packaging, and add a scan-to-verify QR to your packing slips with a Liquid snippet, so the proof ships inside the box.

  • QR labels for products and packaging, on every plan
  • Scan-to-verify QR on packing slips
  • Print-ready SVG and PNG QR files on Starter and Pro
  • Write a verification link to an NFC tag
Printable Authentica QR verify labels for products and packaging

See it in action

Every order, certified automatically.

Under a minute, from paid order to a serial-numbered certificate the buyer can verify by scanning it.

Limited editions, start to finish (3 min 54 s)

A numbered edition of 150 issued before any sale, a pre-issued piece assigned to a later order, owner names hidden, a verified transfer approved by both owners and the store, a replaced certificate that keeps its history, protected private photos, full exports and refunds that no longer revoke. Recorded on our own Shopify test store with fictional data.

Try it yourself

Ask Authentica anything.

No script, no generic answers. Click a question below and get the same answer pulled from how the app actually works, spoken too, the same facts in the FAQ further down this page.

Pick a question. The answer below updates instantly, and you can hear it spoken too.

Does Authentica use crypto, NFTs or a blockchain?

No. Every certificate carries a serial number, a QR code, and a cryptographic signature and fingerprint, all hosted on your own store. There is no wallet, no NFT, no blockchain, and no fee per certificate.

What happens to a certificate if the order is refunded?

By default the certificate is revoked automatically and its verification page shows it as revoked, so a refunded item can never be passed off as still certified. You choose the rule in Settings: revoke the whole order, revoke only the refunded pieces, or never revoke automatically.

Can a certificate follow the item when it is resold?

Yes. Ownership transfer records a new owner on the certificate, and the provenance trail shows every previous owner, so the certificate travels with the item rather than staying with the original buyer. You decide who can transfer: the holder of the private certificate link, only you from the admin, or on Pro a verified flow where the current owner confirms, the new owner accepts and you approve.

What do I get on the free plan?

50 certificates a month, auto-issued on every paid order and emailed to the buyer in your own words, with the full drag-and-drop designer, your logo, colours and custom fields, QR verification, numbered editions, past orders and CSV import, ownership transfer and provenance, QR labels and packing slips, Insights, and Klaviyo, webhook and Shopify Flow events. Starter removes the Authentica branding and adds the edition register tools. Pro adds the white-label page, the Developer API, verified transfers, activation checks, private photos and your own domain.

Is Authentica only for jewelry?

No. Authentica ships with starter presets for jewelry, watches, fine art and prints, luxury fashion and handbags, sneakers and streetwear, collectibles and trading cards, autographs and memorabilia, wine and spirits, coins and bullion, and handmade and artisan goods, plus a general preset for antiques, rare books, instruments and any brand where authenticity matters.

Can I design my own certificate?

Yes. A drag-and-drop designer with a live preview lets you place your logo, colors, custom fields and wording exactly where you want them, choose from 30-plus fonts, upload a custom seal, and pick a theme and paper size.

How it works

Install today, certify your first order today

There is nothing to configure before the first certificate goes out. A sample certificate is ready to view the moment you open the app.

  1. 01

    Pick a category, design it your way

    Choose your niche and the designer auto-fills wording, fields and a starter layout. Then drag elements on the canvas, add your logo and seal, pick a theme, colors and fonts.

  2. 02

    Orders certify themselves

    Every paid order issues a serial-numbered certificate with its own QR verification page and cryptographic signature. Nothing more to do.

  3. 03

    Track and print

    Print QR labels, add a verify QR to packing slips, watch verification insights come in, and certify past orders whenever you are ready.

Features

Everything Authentica does

Everything below is on every plan, including Free, unless it is marked Starter or Pro.

Issuing

  • A serial-numbered certificate and QR for every item on every paid order, or on fulfilment if you prefer
  • Certify only products with a tag, and never certify add-ons like engraving, gift wrap or digital items
  • Issue by hand for commissions, fairs and marketplace sales
  • Certify past orders in bulk, from your whole order history
  • Import certificates from a CSV, keeping your own serials
  • Sequential, Roman numeral, date-prefixed or random serials
  • Numbered editions such as 001/150, each locking its own size when it starts
  • Optional expiry dates for warranties, memberships and limited-validity items
  • Revoke on refund (the whole order, only refunded pieces, or never) and on cancellation
  • Edition register: pre-issue every piece, assign pieces to orders, replace lost certificates Starter
  • Activation checks: hold new pieces until your own checklist is ticked Pro

Design and branding

  • Drag-and-drop designer with live preview, 30-plus fonts and a custom seal
  • Your logo, colours, wording and custom fields, filled from product metafields
  • Category presets for ten niches plus a general one
  • A4 and US Letter, light and dark themes, ready to print
  • A sample certificate to check and share before your first order
  • Remove Authentica branding from certificates and emails Starter
  • White-label verification page Pro

Verification and trust

  • A QR verification page with no account, app or wallet, years after the sale
  • Every certificate cryptographically signed, so an altered one fails
  • Digital Product Passport ready: product data on every page, a machine-readable passport record, and a GS1 Digital Link for items with a GTIN
  • Verification page and emails in 15 languages, including right-to-left Arabic
  • Pages open on your store, or on Authentica's secure domain for password-protected stores and other sites
  • A storefront badge on your product pages
  • Buyers can report a problem, and copied QR codes are flagged for you
  • Hide owner names on public pages
  • Serial lookup on your store, plus lookup by edition and piece number Starter
  • Your own status line, note and identity line on the public page Starter
  • Certificate pages on your own subdomain Pro

Ownership and provenance

  • Ownership transfer on resale or gift, with the full provenance chain
  • You choose who can transfer: the private link holder or only you
  • Verified transfers: the owner confirms, the new owner accepts by email, and you can approve Pro
  • A history of every change and who made it, exportable as CSV
  • Private dispatch, return and complaint photos for each piece Pro

Fulfilment and channels

  • The certificate emailed to the buyer the moment it is issued, in your own words, with your sender name and reply-to
  • Printable QR labels and a scan-to-verify QR on packing slips
  • Print-ready SVG and 1200 px PNG QR files, or a ZIP of all Starter
  • Write a certificate link to an NFC tag
  • Shopify POS sales certify like online orders, with lookup by serial at the counter
  • A My certificates page and a certificate block on each order in customer accounts

Data and integrations

  • Insights: scans, verification rate and your most checked items
  • Klaviyo events and webhooks to Zapier, Make or your own backend
  • Shopify Flow triggers: issued, verified, transferred and problem reported
  • Ask Shopify Sidekick to find certificates and summarise your numbers
  • CSV exports of certificates, ownership history and the change log
  • Developer API and a full JSON export with history Pro
  • A What's new feed in the app, with optional product-update emails

Technical Edge

Built on Shopify's own extension points.

Authentica reads your orders, never writes to them, and serves every verification page from your own store domain.

Technical Stack

Checked in the Authentica code, October 2026

Issuance
Shopify order webhooksCertificates are issued on Miko's servers when Shopify reports an order paid, or fulfilled if you choose. Refunds and cancellations revoke them the same way.
Verification
Shopify app proxyEach verification page is served at your store's own address under /apps/authentica, so buyers never leave your domain. Password-protected stores can use Authentica's secure domain, and on Pro pages can run on your own subdomain.
Signing
Ed25519 + SHA-256Every certificate is signed and fingerprinted, and the public key is published so anyone can check a signature independently.
Traceability
DPP record + GS1 Digital LinkA machine-readable Digital Product Passport record for every certificate, schema.org Product data on every verification page, and GS1 Digital Links for items with a GTIN.
Storefront
Theme app blockThe Authentica badge is a theme app extension you place in the theme editor. No script tags injected into your theme.
Automation
Shopify Flow triggersFour triggers: certificate issued, certificate verified, ownership transferred and problem reported.
Customer accounts
Customer account extensionsA My certificates page and an order status block, for stores on Shopify customer accounts.
Assistant
Shopify Sidekick extension2 read-only Sidekick tools: find certificates, and summarise issued, verified and transferred counts.
Permissions
Read-only scopesRead orders, read all orders (for back-catalog issuance) and read products. No write access to your store.

Pricing

Three plans, flat pricing, no fee per certificate

The full designer, the buyer email, provenance, integrations and back-catalog issuance are free. Paid plans lift the certificate cap, remove branding and add the edition register and Pro controls.

Free

$0/mo

50 certificates a month

  • Full drag-and-drop designer, your logo, colours & fields
  • Auto-issue on every order, emailed to the buyer in your own words
  • QR verification + storefront badge
  • Numbered editions, past orders and CSV import
  • Ownership transfer & provenance
  • QR labels, packing slips, NFC and POS orders
  • Klaviyo, webhooks & Shopify Flow triggers
  • Insights, Sidekick and customer accounts
Install Free
Recommended

Starter

$7.99/mo

500 certificates a month · 14-day free trial · or $86.29/year, save 10%

  • Everything in Free
  • Removes Authentica branding from certificates and emails
  • Edition register: pre-issued pieces to orders, replacements
  • Lookup by edition and piece number
  • Your own public status wording and identity line
  • Print-ready SVG & PNG QR files
Start Free Trial

Pro

$19.99/mo

5,000 certificates a month · 14-day free trial · or $215.89/year, save 10%

  • Everything in Starter
  • White-label verification page
  • Developer API + full JSON export
  • Verified ownership transfers with your approval
  • Activation checks before a piece goes live
  • Private piece photos
  • Certificate pages on your own domain
  • Priority support
Start Free Trial

Compare Authentica with the rest of the family on the pricing page.

See what is included →

All charges are billed in USD.

Built For

Every brand where authenticity and provenance matter

If a buyer could ever wonder "is this real", Authentica gives them the answer in one scan. Starter presets auto-fill the wording and fields for ten niches, and a general preset covers everything else, so the certificate is never generic.

Any Shopify brand selling something a buyer could ever doubt, a knockoff scare, a resale market, a limited run, belongs on Authentica. If your product's value depends on being provably real, a Certificate of Authenticity earns the trust, the repeat buyer and the premium price.

  1. 01

    Jewelry, diamond & watch brands

    Certify carat, metal and origin with a certificate of authenticity for jewelry that travels with the piece through every resale.

  2. 02

    Fine art, prints & galleries

    An artist authenticity certificate with edition numbering (12 of 100), so collectors and auction houses can verify a print or original in one scan.

  3. 03

    Luxury fashion & handbag resellers

    A designer bag or apparel authentication certificate that answers the counterfeit question before a buyer has to ask it.

  4. 04

    Sneaker & streetwear drops

    Sneaker authentication for limited drops, with a QR verification page that beats a screenshot-able hologram sticker.

  5. 05

    Collectibles, trading cards & memorabilia

    Grading-style certificates for cards, autographs and signed memorabilia, with serial numbers collectors already expect.

  6. 06

    Wine, spirits, coins & bullion

    Provenance certificates for vintage, cask and bullion sellers where authenticity is the entire purchase decision.

  7. 07

    Handmade, artisan & small-batch brands

    A maker's certificate of authenticity that proves a piece is genuinely handmade, not mass produced, without any extra cost per item.

  8. 08

    Antiques, rare books & instruments

    Provenance documentation for dealers where an item's history is worth as much as the item itself.

FAQ

Questions, answered

Straight answers on verification, provenance, pricing and setup.

Is Authentica on the Shopify App Store yet?

Yes. Authentica: COA Certificates is live on the Shopify App Store at apps.shopify.com/authentica-coa-certificates with a free plan available. The merchant guide walks through the designer, verification and provenance end to end.

Does Authentica use crypto, NFTs or a blockchain?

No. Every certificate carries a serial number, a QR code, and a cryptographic signature and fingerprint, all hosted on your own store. There is no wallet, no NFT, no blockchain, and no fee per certificate.

Is Authentica only for jewelry?

No. Authentica ships with starter presets for jewelry, watches, fine art and prints, luxury fashion and handbags, sneakers and streetwear, collectibles and trading cards, autographs and memorabilia, wine and spirits, coins and bullion, and handmade and artisan goods, plus a general preset for antiques, rare books, instruments and any brand where authenticity matters.

What happens to a certificate if the order is refunded?

By default the certificate is revoked automatically and its verification page shows it as revoked, so a refunded item can never be passed off as still certified. You choose the rule in Settings: revoke the whole order, revoke only the refunded pieces, or never revoke automatically.

Can a certificate follow the item when it is resold?

Yes. Ownership transfer records a new owner on the certificate, and the provenance trail shows every previous owner, so the certificate travels with the item rather than staying with the original buyer. You decide who can transfer: the holder of the private certificate link, only you from the admin, or on Pro a verified flow where the current owner confirms, the new owner accepts and you approve.

Can I issue a limited edition in advance and assign pieces to orders later?

Yes. Cap an edition (for example 150 pieces), issue every numbered certificate before the sale by hand or by CSV import, and on Starter and Pro give each order a pre-issued piece automatically or assign a specific piece to an order. Numbers are never reused, and a lost certificate can be replaced while keeping the same piece, number, owner and history.

Can I keep owner names private?

Yes. One setting keeps current and former owner names off the public verification page and the certificate shown online. Email addresses are never shown publicly. On Pro you can also store private dispatch, return and complaint photos per piece that only you can see.

Can I export my certificates and take them elsewhere?

Yes. Every plan exports certificates, ownership history and the full change log as CSV. Starter and Pro add print-ready SVG and PNG QR files, and Pro adds a full JSON export and certificate pages on your own subdomain, so printed QR codes stay under your control.

What languages does Authentica support?

The admin is available in 13 languages: English, German, Spanish, French, Italian, Polish, Czech, Danish, Swedish, Bulgarian, Japanese, Chinese and Arabic. What buyers see, the public verification page and the certificate emails, is available in 15 languages: English, German, Spanish, French, Italian, Portuguese, Dutch, Polish, Czech, Danish, Swedish, Bulgarian, Japanese, Chinese and Arabic, including right-to-left Arabic.

What do I get on the free plan?

50 certificates a month, auto-issued on every paid order and emailed to the buyer in your own words, with the full drag-and-drop designer, your logo, colours and custom fields, QR verification, numbered editions, past orders and CSV import, ownership transfer and provenance, QR labels and packing slips, Insights, and Klaviyo, webhook and Shopify Flow events. Starter removes the Authentica branding and adds the edition register tools. Pro adds the white-label page, the Developer API, verified transfers, activation checks, private photos and your own domain.

Can I design my own certificate?

Yes. A drag-and-drop designer with a live preview lets you place your logo, colors, custom fields and wording exactly where you want them, choose from 30-plus fonts, upload a custom seal, and pick a theme and paper size.

Can I print QR labels or add a QR code to packing slips?

Yes. Printable QR labels are available for products and packaging, and a Liquid snippet adds a scan-to-verify QR code to your packing slips.

Does Authentica work with Shopify POS?

Yes. In-person sales through Shopify POS auto-certify like any other order, and staff can look a certificate up by serial number in the Authentica admin.

Can I connect Authentica to Klaviyo or my own tools?

Yes, on every plan. Certificate events (issued, first verified, ownership transferred and problem reported) go to Klaviyo, to your own webhook URL for Zapier, Make or your backend, and to Shopify Flow as triggers.

Can I write the buyer email myself?

Yes. Set your own subject, heading, intro, button label, sender name and reply-to address, so replies reach your support inbox. It works on every plan, and Send test email shows exactly what buyers will get.

What if my printed card has an edition number instead of a QR code?

On Starter and Pro, a public lookup page on your store lets anyone pick the edition and type the piece number, such as 042 of 150, to open that piece's current certificate. A serial lookup page works on every plan.

Can buyers see their certificates in their customer account?

Yes. Turn it on in Settings and Authentica adds a My certificates page and a certificate block on each order to Shopify customer accounts, on every plan.

Can I certify orders from before I installed Authentica?

Yes. Back-catalog issuance certifies every past paid order in one run, so every customer you have ever had can end up with a certificate.

Does verifying a certificate require an account or a wallet?

No. A buyer opens the verification link or scans the QR code in their own browser. There is no account, no app to install, and no crypto wallet.

Is Authentica ready for the Digital Product Passport and GS1?

Yes, on every plan. Each verification page carries machine-readable schema.org Product and provenance data, every certificate has a Digital Product Passport record, and items with a GTIN get a GS1 Digital Link. The Ed25519 signature is the integrity proof, with no blockchain. See the DPP guide.

Does Authentica support NFC tags?

Yes. From a certificate's detail page you can write its verification URL directly to an NFC tag on Web NFC compatible devices, or copy the link as a fallback.

Miko Apps

Prove authenticity. Start today.

Install Authentica and your very next paid order can ship with a real, QR-verifiable Certificate of Authenticity. Free plan, no credit card, live in minutes.

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