PARTICIPANTS
Verified organizations and issuers
Register and verify organizations, laboratories, manufacturers, sellers, and other authorized participants.
- Identity
- Credentials
- Source attribution
DPS PLATFORM · REGISTRY & VERIFICATION NETWORK
COA Chain: Verifiable Records for Certificates, Products, Batches, and Assets.
COA Chain, powered by DPS, is a registry and verification network that connects verified organizations and issuers with certificates, document fingerprints, product and batch records, status history, and public verification evidence.
Its first commercial application focuses on Certificates of Analysis and laboratory-tested products while the underlying network supports broader certificate, product, shipment, provenance, and asset verification workflows.
Persistent recordsSpecific verification signalsPowered by DPS infrastructure
DPS RECORD MODEL
Verified ParticipantsOrganizations, labs, issuers and registrants
COA.1 RecordIndependently verifiable certificate record
COAScanIdentifier and public verification access
DPS InfrastructureRegistry, identity and blockchain evidence
DIRECT ANSWER
What is COA Chain?
COA Chain is a DPS-powered registry and verification network for certificates, products, batches, shipments, and assets. It connects verified participants with independently verifiable records, status history, source attribution, and public verification through COAScan.
DPS
What is COA Chain?
COA Chain is a DPS-powered registry and verification network for certificates, products, batches, shipments, and assets. It connects verified participants with independently verifiable records, status history, source attribution, and public verification through COAScan.
CORE CAPABILITIES
Purpose-built capabilities on shared DPS trust infrastructure.
The page keeps its specific workflow clear while using the same normalized DPS component system.
RECORDS
COA.1 and certificate records
Create persistent independently verifiable records for Certificates of Analysis and other supported certificate or asset records.
- Fingerprint
- Registration
- Status
PRODUCTS & BATCHES
Connect records to real-world items
Associate certificates with products, batches, lots, shipments, or other supported physical and digital asset references.
- Products
- Batches
- Assets
PUBLIC ACCESS
COAScan verification
Resolve COA.1 and related records through a public identifier, QR-linked access, status history, and approved evidence.
- COAScan
- QR resolution
- Public verification
CONNECTED EVIDENCE
Keep the record, source, status, and supporting evidence connected.
DPS uses a hybrid architecture so the appropriate evidence can remain controlled while selected verification information is independently checkable.
Verified Participant
The organization, laboratory, issuer, registrant, or authorized source associated with the record.
COA.1 Record
The independently verifiable digital record created for the registered Certificate of Analysis.
Status & Association
Product, batch, shipment, version, replacement, or revocation relationships connected to the record.
COAScan Access
The public resolver and verification experience for approved COA Chain records.
COA CHAIN · APPROVED TRANSPARENT LOGO IN PRODUCTION
HOW IT WORKS
From the originating workflow to a persistent verification record.
1
Register and verify the participant
An organization, laboratory, issuer, or other participant completes the applicable registration and identity review.
2
Create the certificate or asset record
The original certificate or supported record is fingerprinted and registered with its source and associations.
3
Maintain status and relationships
Product, batch, shipment, version, replacement, revocation, and other supported history remains connected to the canonical record.
4
Resolve through COAScan
A verifier uses the COAScan identifier, QR-linked access, or search experience to inspect the approved public record and evidence.
WHO IT SERVES
Built for organizations that need evidence to remain connected.
DPS supports specialized workflows without forcing every record type into the same claim or customer experience.
Talk with DPSLaboratoriesIssuer identity and original reports
ManufacturersProducts, batches and supporting certificates
Brands & SellersProduct and certificate verification
DistributorsBatch and shipment associations
MarketplacesPublic record resolution
Technology PartnersAPI and attestation integrations
DPS RELATIONSHIP
DPS provides the infrastructure. Purpose-built solutions, platforms, and networks provide the experience.
This relationship keeps the underlying verification system consistent while allowing each workflow to present the information its users actually need.
DPSDigital trust and verification infrastructure
↓
COA ChainRegistry and verification network
↓
COA.1Independently verifiable record
↓
COAScanPublic identifier, resolver and verification experience
COMMON QUESTIONS
COA Chain Platform FAQ
What is COA Chain?
COA Chain is a DPS-powered registry and verification network for certificates, products, batches, shipments, and assets.
What is a COA.1?
A COA.1 is the independently verifiable digital record created when a Certificate of Analysis is registered through the COA Chain and DPS verification system.
What is COAScan?
COAScan is the public identifier, resolver, and verification experience used to retrieve approved COA.1 and related registry records.
Who uses COA Chain?
COA Chain is designed for laboratories, manufacturers, brand owners, sellers, distributors, importers, supply-chain participants, marketplaces, technology platforms, and other organizations that need persistent verification records.
What types of records can COA Chain support?
The network can support Certificates of Analysis and other certificate or verification records, including product, batch, shipment, provenance, and related physical or digital asset records.
Does COA Chain replace laboratory testing or scientific analysis?
No. COA Chain provides identity, document-integrity, association, status, and verification infrastructure. Scientific conclusions remain attributable to the laboratory or qualified party performing that work.
How does COA Chain relate to DPS?
DPS provides the underlying digital trust and verification infrastructure. COA Chain applies that infrastructure as a specialized registry and verification network.
Where do organizations register and where does the public verify records?
Business registration and participation are handled through COAChain.net, while public verification is provided through COAScan.net.
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