Bitcoin testnet4 · Spark REGTEST · no mainnet paths
Creative Bitcoin
🎵 Music & Sound Design · music education

Decentralized Sound Workshops II

Host interactive sound design workshops with onchain attendance proofs and no gas fees.

Spark sats paywall· instant sats payments
Section · Onchain

The primitive.

full primer →

Musicians pay a few sats over Spark (Bitcoin L2) via a single Privy-signed transfer to unlock the music education; 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
music education tech
SAM
$300M
sound workshop platforms
SOM
$22M
gasless workshop hosting

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

See also

Adjacent entries.

music education
Onchain Music Curriculum
Certify students’ composition and sound design achievements onchain for transparent credentialing.
music education
Decentralized Sound Workshops
Host interactive sound design workshops with onchain attendance proofs and no gas fees.
music education
Onchain Music Curriculum II
Certify students’ composition and sound design achievements onchain for transparent credentialing.
beat selling
NFT Beat Marketplace II
Buy and sell beats with onchain provenance and zero gas fee transactions.