Frame Rights
License individual animation frames securely with embedded wallets to track ownership and transactions gas-free.
Privy social + sponsored tx· wallet UX
Section · Onchain
full primer →The primitive.
Filmmakers sign in with Google through Privy — no seed phrase, no MetaMask popup — and their frame licensing actions are sent as sponsored transactions so they never see gas.
Why this primitivePrivy wallets with sponsored tx facilitate easy, transparent rights transfers without user gas cost.
Kernel
Privy embedded wallet bootstrapped with PRIVY_APP_ID — Google sign-in plus sponsored Polygon Amoy transactions so users never see gas
Drives the UI as
a one-click 'Sign in with Google' that drops the user straight into the app with an onchain identity
Required keys.
POLYGON_AMOY_RPC_URL
Alchemy Polygon Amoy HTTPS endpoint (or https://rpc-amoy.polygon.technology).
open ↗ETHERSCAN_API_KEY
Single Etherscan v2 key — covers PolygonScan (chainId 80002) with no extra key.
open ↗Add these in your Lovable project under Settings → Secrets before pasting the prompt below.
Appendix · Mega-prompt
The build prompt.
budget · 1 message
Paste into a fresh Lovable project. Make sure all five secrets above are set first. read the build strategy →
Build "Frame Rights" in ONE Lovable message. Single-page demo.
CONCEPT
License individual animation frames securely with embedded wallets to track ownership and transactions gas-free.
Discipline: Filmmaking & Animation (frame licensing).
Onchain primitive: Privy social + sponsored tx. Why this primitive: Privy wallets with sponsored tx facilitate easy, transparent rights transfers without user gas cost.
5-CREDIT BUDGET (HARD LIMIT):
- ONE single-page app. No router, no Lovable Cloud, no database, no auth flows beyond Privy drop-in.
- ONE Solidity contract, <=80 lines, deployed to Polygon Amoy (chainId 80002), verified on PolygonScan.
- Privy is always the auth + sponsored-tx layer (Google login, embedded wallet).
- Pinata/IPFS only if the idea genuinely needs to store a file or metadata.
- At most ONE AI call per user action (use Lovable AI Gateway with LOVABLE_API_KEY if AI is part of the idea).
- Skip tests, skip CI, skip docs pages. Ship the demo, nothing else.
STACK
- React + Vite single page (the index route).
- Privy embedded wallet wraps `<App />` in src/main.tsx:
<PrivyProvider appId={import.meta.env.VITE_PRIVY_APP_ID}
config={{ loginMethods:['google'], embeddedWallets:{ethereum:{createOnLogin:'users-without-wallets'}},
defaultChain:{ id: 80002, name:'Polygon Amoy' } }}>
SPONSORED TX (required — zero-gas UX):
- Get the embedded wallet: `const { wallets } = useWallets(); const embedded = wallets.find(w => w.walletClientType === 'privy');`
- Send with BOTH `address` and `sponsor: true`, otherwise Privy falls back to user-paid and pops "Add funds on Polygon Amoy":
const { sendTransaction } = useSendTransaction();
await sendTransaction(
{ to: CONTRACT_ADDRESS, data, chainId: 80002 },
{ address: embedded.address, sponsor: true },
);
- `sponsor: true` alone is not enough — the Privy dashboard sponsorship policy must be enabled for Polygon Amoy (see PRIVY DASHBOARD SETUP).
PRIVY DASHBOARD SETUP (one-time, at https://dashboard.privy.io for the app matching PRIVY_APP_ID):
1. Gas Sponsorship -> Add chain -> Polygon Amoy (chainId 80002).
2. Toggle "App pays" for that chain.
3. Enable "Allow transactions from the client".
4. Fund the sponsorship balance with a small amount of MATIC on Amoy (Privy shows the deposit address).
Without these four steps every `sponsor: true` call falls back to user-paid gas.
- Hardhat in /contracts (kept outside the Vite bundle). Install
`@nomicfoundation/hardhat-ethers` AND `@nomicfoundation/hardhat-verify` (>=2.x).
DO NOT install `@nomicfoundation/hardhat-toolbox` — it drags Hardhat 3 peers.
- hardhat.config.cjs — Polygon Amoy + Etherscan v2 single-key:
require("@nomicfoundation/hardhat-ethers");
require("@nomicfoundation/hardhat-verify");
const pk = process.env.METAMASK_PRIVATE_KEY;
module.exports = {
solidity: { version: "0.8.24", settings: { optimizer: { enabled: true, runs: 200 } } },
networks: { polygonAmoy: {
url: process.env.POLYGON_AMOY_RPC_URL || "https://rpc-amoy.polygon.technology",
accounts: pk ? [pk.startsWith("0x") ? pk : "0x" + pk] : [],
chainId: 80002,
} },
etherscan: {
apiKey: process.env.ETHERSCAN_API_KEY, // single Etherscan v2 key covers PolygonScan
customChains: [{
network: "polygonAmoy", chainId: 80002,
urls: {
apiURL: "https://api.etherscan.io/v2/api?chainid=80002",
browserURL: "https://amoy.polygonscan.com",
},
}],
},
sourcify: { enabled: false },
};
- Deploy: `npx hardhat run scripts/deploy.cjs --network polygonAmoy`.
- Verify (run RIGHT AFTER deploy, no constructor args for these contracts):
`npx hardhat verify --network polygonAmoy <address>`
On success it prints "Successfully verified contract … on the block explorer"
and the source becomes readable at
`https://amoy.polygonscan.com/address/<address>#code`.
- Frontend reads: create a viem public client with the Polygon Amoy RPC too —
`createPublicClient({ chain: polygonAmoy, transport: http(import.meta.env.VITE_POLYGON_AMOY_RPC_URL) })`
(import `polygonAmoy` from `viem/chains`).
Expose the RPC to the client by also setting VITE_POLYGON_AMOY_RPC_URL to the same value.
- Write the deployed address to `src/data/contract.json` so the UI links to
`https://amoy.polygonscan.com/address/<address>`.
CONTRACT (contracts/FrameRights.sol):
```solidity
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;
/// @title SocialLogFrameRights
/// @notice License individual animation frames securely with embedded wallets to track ownership and transactions gas-free.
/// @notice Built during the Creative AI & Quantum Hackathon organised by StreetKode Fam during Indian Krump Festival 14
contract SocialLogFrameRights {
event Logged(address indexed author, string cid, uint256 at);
/// @notice Built during the Creative AI & Quantum Hackathon organised by StreetKode Fam during Indian Krump Festival 14
function log(string calldata cid) external {
emit Logged(msg.sender, cid, block.timestamp);
}
}
```
USER FLOW
1. Land on page -> 'Sign in with Google' (Privy) -> embedded wallet auto-provisioned on Polygon Amoy.
2. Every frame licensing action the user performs is sent as a sponsored Polygon Amoy tx (`log(payload)`) and displayed with a PolygonScan link. No wallet popups.
3. Footer renders: "Built during the Creative AI & Quantum Hackathon organised by StreetKode Fam during Indian Krump Festival 14"
REQUIRED SECRETS (Lovable -> Project Settings -> Secrets):
- METAMASK_PRIVATE_KEY Polygon Amoy deployer key. Fund it: https://faucet.polygon.technology/
(alt: https://faucet.polygon.technology/)
- POLYGON_AMOY_RPC_URL Alchemy Polygon Amoy HTTPS endpoint (https://polygon-amoy.g.alchemy.com/v2/<key>)
OR the public default https://rpc-amoy.polygon.technology. Create a free app: https://dashboard.alchemy.com/
- ETHERSCAN_API_KEY Single Etherscan v2 key — verifies on PolygonScan (chainId 80002) with no extra key.
Get: https://etherscan.io/myapikey
- PRIVY_APP_ID Google sign-in + sponsored tx. See PRIVY DASHBOARD SETUP below to enable Polygon Amoy sponsorship.
Docs: https://docs.privy.io/llms-full.txt
- PINATA_JWT IPFS uploads (only if app pins media). Docs: https://docs.pinata.cloud/llms-full.txt
CREDIT (must appear in UI footer AND as NatSpec on every deployed contract):
Built during the Creative AI & Quantum Hackathon organised by StreetKode Fam during Indian Krump Festival 14
Market sizing.
TAM
$5B
digital rights management in animation
SAM
$1B
licensing platforms for creative assets
SOM
$20M
niche blockchain licensing solutions
Indicative figures for hackathon pitches — refine with your own research before raising.
Adjacent entries.
frame licensing
AnimFrame Trade
License individual animation frames securely and transparently using blockchain smart contracts.
storyboard collaborationStoryboard Sync
Enable real-time, gasless syncing and feedback on storyboards among filmmakers and artists.
animatic distributionAnimatic Drops
Distribute animatics securely with embedded wallets for easy user access and sponsored preview transactions.
motion design sharingMotion Share
Share and collect feedback on motion graphics with instant, gasless social wallet interactions.