Creative Blockchain
👗 Fashion & Textile Design · fabric draping records

Grainline · Pay to Anchor

Pay-per-layer documentation for master-tailors and pattern makers. Every view or 'unpin' of a technical drape sequence triggers an instant settlement to the designer, turning a studio archive into a metered technical resource for apprentices and manufacturers. One 0.01 USDC payment over x402 anchors the WOTS+ seal on-chain — no subscription, no account.

x402 track · paid unlockPay-to-anchor· paid provenance
Section · Onchain

The primitive.

full primer →

Fashion designers pay 0.01 USDC once, in-page, and the fabric draping records seal is written on-chain for them — no funded host-chain wallet, no subscription, just a payment log that ends in a real transaction.

Why this primitiveLoading details…

Kernel
a 0.01 USDC payment over x402 on Base Sepolia that buys one on-chain anchor — the server verifies the settlement, then a relayer writes the user's WOTS+ seal into the QUIP verifier on the host chain
Drives the UI as
a numbered payment log running from 402 challenge to settled USDC to the host-chain anchor tx, every hash a clickable explorer link
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.

fabric draping records
Drape Documentation
Pin high-res photos and notes on draping experiments for design validation. The creator's existing wallet is wrapped with a post-quantum commitment.
material provenance
FiberProof · Pay to Anchor
Micro-verify the origin of every thread. Zero subscriptions—pay only per fabric roll audited. One 0.01 USDC payment over x402 anchors the WOTS+ seal on-chain — no subscription, no account.
trend prediction
TrendSignal · Pay to Anchor
A hyper-fragmented trend feed where every forecast, color palette, and fabric prediction is an indvidual QUIP-gated asset. Each micropayment triggers an on-chain verification of the source data (social sentiment + RWA sales), ensuring the signal isn't just noise. Pay to see the next silhouette before the market saturates. One 0.01 USDC payment over x402 anchors the WOTS+ seal on-chain — no subscription, no account.
biomaterial crowdfunding
SporePrint · Pay to Anchor
A pay-per-sample terminal where designers unlock genetic recipes and fabrication protocols for mycelium, algae, and bacterial cellulose. One 0.01 USDC payment over x402 anchors the WOTS+ seal on-chain — no subscription, no account.