Creative Blockchain
🎨 Visual Art · digital ink art

Sumi-E · Paid Certificate

A digital calligraphy and brush-stroke protocol where every stroke is a micro-transaction. Instead of buying a static piece, creators meter access to their unique digital ink 'DNA'. Artists receive immediate EIP-3009 settlements as users paint, turning the act of digital creation into a real-time revenue stream for the toolsmith. Paying 0.01 USDC over x402 returns a signed provenance certificate for the work.

x402 track · paid unlockPaid provenance certificate· signed receipt
Section · Onchain

The primitive.

full primer →

One 0.01 USDC payment turns the digital ink art record into a signed certificate painters can email, attach or archive — and the page proves who signed it without asking anyone to trust the server.

Why this primitiveLoading details…

Kernel
a 0.01 USDC payment over x402 that returns a relayer-signed provenance certificate over the WOTS+ head — a portable document anyone can verify without trusting the issuer
Drives the UI as
a certificate card with the signed fields, the issuing signer, and a 'recover signer' check that runs in the browser
Appendix · Secrets

Required keys.

METAMASK_PRIVATE_KEY
Deploys the QUIP verifier to your host chain. Fund on Sepolia via the Google Cloud faucet.
open ↗
SEPOLIA_RPC_URL
Host-chain HTTPS RPC endpoint. Any Sepolia provider works.
open ↗
ETHERSCAN_API_KEY
Required for npx hardhat verify after deploy.
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 build prompt…
Open in Lovable ↗Sepolia Etherscan ↗
Appendix · Market

Market sizing.

TAM
…
SAM
…
SOM
…

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

See also

Adjacent entries.

digital ink art
Illustrator Ink
Support ink artists selling limited editions with gasless minting and sponsored transaction flows. The creator's existing wallet is wrapped with a post-quantum commitment.
generative art minting
Gen-Seed · Paid Certificate
Instead of a heavy upfront minting fee, users pay per 'Evolution Sign-off.' Artists deploy logic; collectors pay per high-fidelity render, receiving a Base tx hash as proof of unique generation. The payment is the shutter click. Paying 0.01 USDC over x402 returns a signed provenance certificate for the work.
artwork license management
Atelier · Paid Certificate
A high-frequency licensing gateway where digital assets are metered by the millisecond. Each glance or API call triggers an EIP-3009 transfer, returning a Base tx hash as a cryptographically verifiable proof-of-usage. Paying 0.01 USDC over x402 returns a signed provenance certificate for the work.
programmable artwork framing
BORDERLINE · Paid Certificate
A programmable border-engine where every aesthetic shift is a transaction. Use the QUIP primitive to meter 'Gaze-Based Evolution' (auto-shifting frames based on how many wall-clocks pass) or 'Oracle-Linked Skins' (weather/price/time-of-day) where each asset state-change is a paid, verifiable event. Pay to re-frame your collection for a specific gallery mood. Paying 0.01 USDC over x402 returns a signed provenance certificate for the work.