Creative Blockchain
🎨 Visual Art · digital color codes

ChromaLock · x402

A high-fidelity color lookup and protection engine. Pay 0.01 USDC to unlock the precise hex/CMYK specifications of proprietary palettes or sign a 'Proof of Origin' for a unique hex code to the Base ledger. Professional graders and brand designers meter their assets, ensuring every palette extraction is a billable event.

Hedera testnet + x402 paywall· x402 native
Section · Onchain

The primitive.

full primer →

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

Why this primitiveTurns static color data into a metered API. By utilizing x402, designers can gate their 'secret sauce' brand colors behind micropayments rather than selling entire libraries, while AI agents can programmatically fetch 'on-trend' palettes via signed auth.

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
$4.2B
The global digital design and specialized software market transitioning to granular, per-use licensing.
SAM
$850M
Revenue from professional brand consultants and UI/UX design agencies migrating to on-chain asset management.
SOM
$12M
Early adoption by generative art platforms and crypto-native branding boutiques on Hedera.

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

See also

Adjacent entries.

digital color codes
Color Code Vault
Securely store and prove origin of proprietary digital color codes with mintable NFTs.
art ownership tracking
HardTrace · x402
An on-chain verification layer where creators and galleries pay 0.01 USDC to append or verify high-fidelity provenance events. Trade paper trails for a micro-paid, immutable ledger of truth.
generative art minting
Gen-Seed · x402
A headless seed-to-string engine where 0.01 USDC triggers a unique generative iteration. Instead of a heavy upfront minting fee, users pay per 'Evolution Sign-off.' Artists deploy logic; collectors pay per high-fidelity render, receiving a Hedera transaction id as proof of unique generation. The payment is the shutter click.
gallery exhibition tracking
Exhibit · x402
Provenance is a living ledger, not a static database. Exhibit pays the artist 0.01 USDC every time a curator, insurer, or buyer pulls a verified exhibition history or updates a physical location tag. Turn the 'paper trail' into a real-time revenue stream for estates and digital creators.