Onchain Audio Stems II
Distribute high-quality audio stems with transparent ownership and zero gas fees.
Spark sats paywall· instant sats payments
Section · Onchain
full primer →The primitive.
Musicians pay a few sats over Spark (Bitcoin L2) via a single Privy-signed transfer to unlock the stem distribution; 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
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 ↗Add these in your Lovable project under Settings → Secrets before pasting the prompt below.
Appendix · Mega-prompt
The build prompt.
self-contained
Paste into a fresh Lovable project — it carries its own feature spec, code, setup and checklist. read the build strategy →
loading the build spec…
Market sizing.
TAM
$900M
stem marketplaces
SAM
$250M
stem distribution platforms
SOM
$20M
gasless stem sharing
Indicative figures for hackathon pitches — refine with your own research before raising.
Adjacent entries.
stem distribution
Onchain Audio Stems
Distribute song stems with immutable licenses and resale royalty tracking onchain.
stem distributionOnchain Audio Stems
Distribute high-quality audio stems with transparent ownership and zero gas fees.
stem distributionOnchain Audio Stems II
Distribute song stems with immutable licenses and resale royalty tracking onchain.
beat sellingNFT Beat Marketplace II
Buy and sell beats with onchain provenance and zero gas fee transactions.