Use cases
Every event that matters,
certified.
From sideloaded app installs to escrow confirmations — if your business depends on it, TaaS can prove it happened.
Marketplaces & Escrow
Certify every agreement between buyer and seller.
When buyers and sellers transact without a paper trail, disputes are expensive and unwinnable. TaaS creates a cryptographic record at each critical step — item listed, price agreed, delivery confirmed, funds released. Each certificate is independently verifiable and can be submitted as evidence in arbitration or small claims court.
Events to certify
// Certify buyer acceptance
taas.certify({
type: "item_received_confirmed",
payload: {
order_id: "ord_abc123",
buyer_id: "usr_buyer",
seller_id: "usr_seller",
amount: { value: 1200, currency: "USD" }
}
})Logistics & Delivery
Proof of delivery that holds in disputes.
Fraudulent non-delivery claims cost logistics companies millions annually. TaaS certifies each delivery event with GPS coordinates, timestamps, and optional recipient digital signature — creating undeniable evidence for chargebacks, insurance claims, and customer disputes.
Events to certify
taas.certify({
type: "delivery_complete",
payload: {
shipment_id: "shp_xyz789",
recipient: "Jane Doe",
gps: { lat: 40.7128, lng: -74.0060 },
signature: "base64_sig_here"
}
})App Install Certification
Unique to TaaSCertify installs outside the Play Store and App Store.
Enterprise apps, beta builds, MDM-deployed applications, and direct APK distributions live outside the official app stores — and have no built-in installation audit trail. TaaS fills this gap. Certify exactly which version was installed, on which device, by which user, at what time. Useful for compliance audits, rollback verification, and distribution integrity checks.
Events to certify
taas.certify({
type: "app_install",
payload: {
app_id: "com.acme.enterprise",
version: "2.1.4",
build: "1047",
platform: "android",
distribution: "direct_apk", // or "mdm", "testflight", "pwa"
device_id: "uuid-device-f3a9",
user: "[email protected]"
}
})Fintech & Payments
Combat chargebacks with irrefutable proof.
Chargebacks cost US merchants an average of $3.75 for every $1 lost. TaaS certifies the moment of user authorization — proving intent with cryptographic certainty. Unlike server logs, TaaS certificates cannot be modified retroactively.
Events to certify
taas.certify({
type: "payment_authorized",
payload: {
transaction_id: "txn_abc",
amount: { value: 99.99, currency: "USD" },
authorized_by: "usr_buyer_id",
method: "card_ending_4242"
}
})Freelance Platforms
Remove "I never approved that" from your disputes.
Freelance platforms handle billions in annual transactions with most disputes relying on email threads and chat screenshots — both easily fabricated. TaaS integrates at the platform level to certify each milestone approval, creating legal-grade evidence in milliseconds.
Events to certify
taas.certify({
type: "milestone_approved",
payload: {
project_id: "proj_123",
milestone: "Final delivery v3",
approved_by: "client_id",
freelancer: "freelancer_id",
amount_due: { value: 2500, currency: "USD" }
}
})Legal & Compliance
CCPA-compliant audit trails for every user action.
US courts require clear evidence of consent to enforce ToS agreements. A checkbox without cryptographic proof is not enough. TaaS certifies each acceptance with a timestamp, user identifier, and document version hash — admissible in arbitration and court proceedings.
Events to certify
taas.certify({
type: "tos_acceptance",
payload: {
user_id: "usr_abc123",
tos_version: "v3.2",
tos_hash: "sha256_of_tos_document",
accepted_at: new Date().toISOString(),
ip_address: "203.0.113.1"
}
})Don't see your use case?
TaaS certifies any JSON payload. If your event matters, we can certify it.
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