Bitcoin testnet4 · Spark REGTEST · no mainnet paths
Creative Bitcoin
🎵 Music & Sound Design · metadata management

Music Metadata Registry II

Create a decentralized registry for verified, searchable music metadata and ownership info.

Privy Spark sign-in· bitcoin wallet UX
Section · Onchain

The primitive.

full primer →

Musicians sign in with Google through Privy — no seed phrase, no wallet extension — and Privy mints them a Spark (Bitcoin L2) wallet plus a Bitcoin testnet deposit address in one flow.

Why this primitiveA Privy Spark embedded wallet lets creators sign in with Google and receive a Bitcoin L2 address in one click — no seed phrase, no browser extension.

Kernel
Privy embedded wallet with chainType 'spark' — Google / email sign-in mints a Bitcoin testnet address plus a Spark (Bitcoin L2) address in one flow, no seed phrase, no extension
Drives the UI as
a one-click 'Sign in with Google' that drops the user into the app with a copy-able Spark address and a testnet BTC deposit address
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
$2.8B
music information management
SAM
$700M
digital metadata services
SOM
$80M
blockchain metadata users

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

See also

Adjacent entries.

metadata management
Music Metadata Registry
Create a decentralized registry for verified, searchable music metadata and ownership info.
remix licensing
Onchain Remix Rights II
Enable transparent licensing and royalty splits for remixed tracks directly on the blockchain.
beat collaboration
Collaborative Beat Ledger II
Record and timestamp collaborative beat creation sessions with immutable proof of contribution.
sound libraries
Sound Effect NFT Vault II
Mint and trade exclusive sound effects as NFTs ensuring ownership and monetization for creators.