Bitcoin testnet4 · Spark REGTEST · no mainnet paths
Creative Bitcoin
🎬 Filmmaking & Animation · virtual prop rental

PropChain License II

Mint rental licenses as NFTs for 3D props enabling secure temporary usage.

Spark sats paywall· instant sats payments
Section · Onchain

The primitive.

full primer →

Filmmakers pay a few sats over Spark (Bitcoin L2) via a single Privy-signed transfer to unlock the virtual prop rental; 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
$400B
filmmaking virtual asset rentals
SAM
$5B
3D prop rental services
SOM
$10M
NFT powered prop rental platforms

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

See also

Adjacent entries.

virtual prop rental
PropChain License
Mint rental licenses as NFTs for 3D props enabling secure temporary usage.
motion design sharing
Motion Share II
Share and collect feedback on motion graphics with instant, gasless social wallet interactions.
frame licensing
Frame Rights II
License individual animation frames securely with embedded wallets to track ownership and transactions gas-free.
voice-over integration
Voice Sync II
Sync and verify voice-over sessions onchain with social wallets for smooth, gasless collaboration.