Creative Blockchain
🎨 Visual Art · artist palette provenance

Chromatix · x402

A protocol where every stroke is metered. Artists gate access to their digital pigment recipes and process-replays via x402. Fans pay 0.01 USDC to unlock the 'Digital Residue'—the exact hex-codes, mixing ratios, and stroke metadata used during a session—bridging the gap between the physical palette and on-chain aesthetic DNA.

Hedera testnet + x402 paywall· x402 native
Section · Onchain

The primitive.

full primer →

Access to the artist palette provenance 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 primitiveTransitions from a static NFT minting platform to a live, paid-access data stream. By turning the 'process' into a metered asset, artists monetize the education and curiosity surrounding their unique color theory without high-friction minting costs.

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
$2.4B
The global art collectibles and masterclass market transitioning to sub-cent digital access.
SAM
$120M
Pro-creators and digital illustrators selling process-access to collectors.
SOM
$450K
High-end fine artists on Hedera using x402 to gate 'Behind the Canvas' metadata.

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

See also

Adjacent entries.

artist palette provenance
Provenance Palette
Digitally certify and mint provenance tokens for unique physical artist palettes.
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.