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Application Approved!

Your organization

Complete Your Issuer Setup

Your application has been approved. To start creating assertions, you need to register your cryptographic signing keys.

Why signing keys?

MIR Assertions uses cryptographic signatures to prove authenticity. You'll sign each assertion with your private key, and anyone can verify it using your public key.

Step 1: Get Your API Key

Generate an API key to authenticate your requests.

Step 2: Generate Signing Keys

Generate your Ed25519 or ES256 signing keypair:


            openssl genpkey -algorithm Ed25519 -out private.pem

            openssl pkey -in private.pem -pubout -out public.pem

Step 3: Register Your Public Key


            POST /assertions/issuer/register

            Headers: x-api-key: YOUR_API_KEY

            Body: { "publicKey": "...", "keyAlgorithm": "Ed25519" }

View API Docs

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Application Pending

Your organization

We're Reviewing Your Application

Thank you for applying to become an issuer on MIR Assertions. Our team is currently reviewing your application.

You'll receive an email at your registered address once a decision has been made. This typically takes 2-3 business days.

Application Status: PENDING

Submitted: -

Questions? Contact us

Issuer Portal

Manage your assertions and check media artifacts

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Domain

Subscription

Key Algorithm

Check Media Artifact

Drop a file or enter a SHA-256 hash to check for existing assertions.

Drop file here or click to select

File is hashed locally - never uploaded

Your Assertions

Drop or click to match a file to your assertions

Create New Assertion

Attestation Required

Assertions are opt-in, affirmative acts. MIR does not label, detect, or accuse. Unasserted media simply remains unasserted.

Before creating assertions, you must acknowledge the following:

I understand MIR is a neutral registry that records WHO made each assertion, not whether it's accurate.

I am authorized to make assertions on behalf of my organization.

I understand false or misleading assertions may result in account suspension.

Signing Keys

All signing keys registered to your organization.

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Team Invites

Invite team members to register their own signing keys.

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File a Dispute

If you believe your account was suspended or restricted in error, you can file a dispute.

No Issuer Access

Want to become an issuer?

Something went wrong

Application Approved!

Complete Your Issuer Setup

Step 1: Get Your API Key

Step 2: Generate Signing Keys

Step 3: Register Your Public Key

Application Pending

We're Reviewing Your Application

Issuer Portal

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Check Media Artifact

Your Assertions

Create New Assertion

Attestation Required

Signing Keys

Team Invites

File a Dispute

Issuer Portal

No Issuer Access

Want to become an issuer?

Something went wrong

Application Approved!

Complete Your Issuer Setup

Step 1: Get Your API Key

Step 2: Generate Signing Keys

Step 3: Register Your Public Key

Application Pending

We're Reviewing Your Application

Issuer Portal

Loading...

Check Media Artifact

Your Assertions

Create New Assertion

Attestation Required

Signing Keys

Team Invites

Revoke Signing Key

File a Dispute

Edit Assertion