Bitcoin testnet4 · Spark REGTEST · no mainnet paths
Creative Bitcoin
🎬 Filmmaking & Animation · prop asset management

AnimProps Ledger II

Immutable pinning of prop designs on IPFS enables verified ownership and reuse across projects.

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

The primitive.

full primer →

Filmmakers 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
$300M
3D prop asset market
SAM
$75M
prop sharing platforms
SOM
$12M
niche animation studios

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

See also

Adjacent entries.

prop asset management
AnimProps Ledger
Immutable pinning of prop designs on IPFS enables verified ownership and reuse across projects.
script rights tracking
ScriptMint II
Track and transfer screenplay rights securely through blockchain for transparent ownership history.
crowd animation funding
AnimStake Voting II
Enable decentralized community voting to fund independent animations using secure onchain ballots.
motion asset NFTs
MotionNFT Vault II
Mint and trade unique motion design assets as NFTs with verifiable ownership and licensing.