Creative Blockchain
👗 Fashion & Textile Design · jewelry design

CaratCast · x402

A high-resolution jewelry blueprint vault for independent jewelers and boutique jewelers. Users sign a 0.01 USDC HTS transfer authorization to unlock one-time access to technical CAD files, high-fidelity renders, or material sourcing sheets. Pay-per-view provenance records allow buyers to verify the exact metallurgical history and artisan trail of a piece on-chain, eliminating the friction of full NFT sales for simple design inspiration or technical reference.

Hedera testnet + x402 paywall· x402 native
Section · Onchain

The primitive.

full primer →

Access to the jewelry design engine is metered with x402: 0.01 HBAR or 0.01 HTS USDC per call, paid from the embedded wallet, so fashion designers — or the agents working for them — pay per query and get a HashScan receipt every time.

Why this primitiveCurrent jewelry archives are locked behind expensive enterprise subscriptions or 'all-or-nothing' NFT sales. This reframes archival exploration as a micro-metered utility, where paying pennies per design-view creates a high-volume revenue stream for designers while protecting IP from bulk scraping.

Kernel
an x402 v2 paywall metering access at 0.01 HBAR or 0.01 HTS USDC (token 0.0.429274) per call, paid from the embedded wallet through the relay and verified by a self-hosted facilitator against the Hedera mirror node
Drives the UI as
a 'pay 0.01 HBAR or USDC to unlock' button with a live flow log and a HashScan link for every settlement
Appendix · Secrets

Required keys.

HEDERA_OPERATOR_ID
Hedera testnet account id (0.0.xxxxxx). Create and fund it free.
open ↗
HEDERA_OPERATOR_KEY
ECDSA private key for that account, from the Hedera portal dashboard.
open ↗
REOWN_PROJECT_ID
Free project id powering the HashPack pairing modal.
open ↗
HEDERA_RPC_URL
Optional. JSON-RPC relay, defaults to the public Hashio endpoint.
open ↗
PINATA_JWT
Pins images / JSON / manifests to IPFS.
open ↗

Add these in your Lovable project under Settings → Secrets before pasting the prompt below.

Appendix · Mega-prompt

The build prompt.

Paste into a fresh Lovable project. Make sure all five secrets above are set first. read the build strategy →

Loading the mega-prompt…
Hedera testnet HashScan ↗
Appendix · Market

Market sizing.

TAM
$6.5B
The global online jewelry market and digital IP licensing sector for high-end fashion.
SAM
$240M
The digital design and pattern sharing market for independent luxury artisans and hobbyist jewelers.
SOM
$1.8M
First-year volume from technical file unlocks for the growing community of 3D-printed jewelry designers on Hedera.

Indicative figures for hackathon pitches — refine with your own research before raising.

See also

Adjacent entries.

jewelry design
Accessory Archives
Digitally mint exclusive NFT records of original jewelry designs with provenance.
material provenance
FiberProof · x402
Micro-verify the origin of every thread. Designers pay 0.01 USDC to pull a real-time provenance certificate via HTS transfer, instantly unlocking a secure Hedera transaction id that validates organic claims for the consumer. Zero subscriptions—pay only per fabric roll audited.
design copyright
PatternGuard · x402
A high-throughput timestamping layer for garment patterns and textile prints. Designers pay 0.01 USDC to instantly log a cryptographic fingerprint of their work to Base, generating a verifiable 'Proof of Creation' certificate. This replaces slow, expensive legal filing with a sub-cent digital notary that protects designs the moment they leave the iPad.
color curation
HUEBLOCK · x402
A high-fidelity color library where every hex code curation is a metered asset. Designers pay 0.01 USDC to unlock palette sets or export CSS/Tailwind variables, with royalties streaming instantly to the original curators. No subscriptions—just micro-payments per palette pull.