Bitcoin testnet4 · Spark REGTEST · no mainnet paths
Creative Bitcoin
👗 Fashion & Textile Design · design copyright

Pattern Provenance II

Protect sewing patterns with immutable copyright records accessible via Google login.

Spark sats paywall· instant sats payments
Section · Onchain

The primitive.

full primer →

Fashion designers pay a few sats over Spark (Bitcoin L2) via a single Privy-signed transfer to unlock the design copyright; settlement is instant and the merchant confirms via getBalance.

Why this primitiveA Spark sats transfer settles in under a second and is Bitcoin-native — perfect for gating this content behind a one-click, low-friction micropayment.

Kernel
a 'pay N sats on Spark to unlock' gate — the user signs a Spark transfer via Privy, the merchant's wallet observes the transfer via Spark's getBalance/getTransfers, and the endpoint releases the payload
Drives the UI as
a 'pay 100 sats to unlock' button that returns the Spark tx id, the merchant confirmation, and settles instantly
Appendix · Secrets

Required keys.

PRIVY_APP_ID
Privy dashboard → your app. Configure with chainType 'spark' to mint Bitcoin L2 wallets on sign-in.
open ↗
PRIVY_APP_SECRET
Server-side. Required for the merchant Spark wallet to observe incoming sats transfers via the Privy RPC.
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 — it carries its own feature spec, code, setup and checklist. read the build strategy →

loading the build spec…
Open in Lovable ↗mempool.space testnet4 ↗
Appendix · Market

Market sizing.

TAM
$1.2B
fashion design software
SAM
$100M
copyright management
SOM
$10M
blockchain copyright for patterns

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

See also

Adjacent entries.

design copyright
DesignAuth Mint
Securely register and timestamp original fashion designs to prevent copying.
design copyright
Pattern Provenance
Protect sewing patterns with immutable copyright records accessible via Google login.
design copyright
DesignAuth Mint II
Securely register and timestamp original fashion designs to prevent copying.
material provenance
Fabric Storychain II
Track textile origins transparently for designers and consumers to verify authenticity.