Creative Blockchain
🎥 Videography & Film · captioning

OpenScript · Paid Certificate

Pay-per-frame to generate, verify, or hard-code high-fidelity subtitles. Creators sign EIP-3009 permits to pull captions from a global vault, while AI agents Settlement guarantees the translator or original captioner is paid every time a viewer toggles a language layer. Paying 0.01 USDC over x402 returns a signed provenance certificate for the work.

x402 track · paid unlockPaid provenance certificate· signed receipt
Section · Onchain

The primitive.

full primer →

One 0.01 USDC payment turns the captioning record into a signed certificate videographers can email, attach or archive — and the page proves who signed it without asking anyone to trust the server.

Why this primitiveLoading details…

Kernel
a 0.01 USDC payment over x402 that returns a relayer-signed provenance certificate over the WOTS+ head — a portable document anyone can verify without trusting the issuer
Drives the UI as
a certificate card with the signed fields, the issuing signer, and a 'recover signer' check that runs in the browser
Appendix · Secrets

Required keys.

METAMASK_PRIVATE_KEY
Deploys the QUIP verifier to your host chain. Fund on Sepolia via the Google Cloud faucet.
open ↗
SEPOLIA_RPC_URL
Host-chain HTTPS RPC endpoint. Any Sepolia provider works.
open ↗
ETHERSCAN_API_KEY
Required for npx hardhat verify after deploy.
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. Make sure all five secrets above are set first. read the build strategy →

Loading the build prompt…
Open in Lovable ↗Sepolia Etherscan ↗
Appendix · Market

Market sizing.

TAM
…
SAM
…
SOM
…

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

See also

Adjacent entries.

captioning
Subtitle Signet
Mint subtitles as NFTs to certify translation accuracy and original captioning ownership. Every action is signed with a fresh WOTS+ one-time key.
edit history
CUTSCENE · Paid Certificate
A provable version-control layer for post-production. Pay to pull the history of any clip, ensuring editors get paid per revision and directors have a verifiable audit trail of every frame change. No more 'Final_Final_v2.mp4' confusion. Paying 0.01 USDC over x402 returns a signed provenance certificate for the work.
video authenticity
DeepProof · Paid Certificate
Instantly verify the provenance and integrity of any video asset. Every verification call returns a Base tx hash, creating an immutable audit trail that prevents deepfake manipulation and preserves original intent. Pay per verification, protect per frame. Paying 0.01 USDC over x402 returns a signed provenance certificate for the work.
subtitle generation
ScriptCipher · Paid Certificate
Film-grade subtitle generation where every timestamp is cryptographically anchored. Use it to gate premium content or provide tamper-proof transcripts for legal and archival videography. No subscriptions, just compute-on-demand. Paying 0.01 USDC over x402 returns a signed provenance certificate for the work.