Bitcoin testnet4 · Spark REGTEST · no mainnet paths
Creative Bitcoin
🎥 Videography & Film · audio synchronization

SoundSync Chain II

Synchronize and store audio-video alignment data on IPFS for seamless collaborative editing.

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

The primitive.

full primer →

Videographers 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
$1.1B
video and audio editing software
SAM
$130M
audio synchronization tools
SOM
$22M
independent content creators

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

See also

Adjacent entries.

audio synchronization
SoundSync Chain
Synchronize and store audio-video alignment data on IPFS for seamless collaborative editing.
audio synchronization
SoundSync Provenance
Mint sound edits as NFTs linked to videos to verify audio-visual synchronization authenticity.
edit history
EditVersion Ledger II
Track and verify every edit version of a video project transparently on the blockchain.
licensed assets
ClipLicense Swap II
Facilitate secure, onchain licensing and transfer of video clips between creators.