🎥 Videography & Film · subtitling and captions

SubGate · x402

A high-performance subtitle delivery layer where filmmakers pay 0.01 USDC per CID resolution to fetch globally-redundant, version-synced captions. Every time a video player requests a subtitle file, the creator is settled instantly via the facilitator. Stop bundle-bloating video files; stream localized text data on-demand through an immutable, paid gateway.

Hedera testnet + x402 paywall· x402 native
Section · Onchain

The primitive.

full primer →

Access to the subtitling and captions engine is metered with x402: 0.01 HBAR or 0.01 HTS USDC per call, paid from the embedded wallet, so videographers — or the agents working for them — pay per query and get a HashScan receipt every time.

Why this primitiveShifts captioning from a 'fixed' asset to a metered utility. Using x402 allows for granular billing where a 10-episode series only incurs costs for the specific languages a viewer actually toggles, creating a more efficient micro-economy for post-production houses.

Kernel
an x402 v2 paywall metering access at 0.01 HBAR or 0.01 HTS USDC (token 0.0.429274) per call, paid from the embedded wallet through the relay and verified by a self-hosted facilitator against the Hedera mirror node
Drives the UI as
a 'pay 0.01 HBAR or USDC to unlock' button with a live flow log and a HashScan link for every settlement
Appendix · Secrets

Required keys.

HEDERA_OPERATOR_ID
Hedera testnet account id (0.0.xxxxxx). Create and fund it free.
open ↗
HEDERA_OPERATOR_KEY
ECDSA private key for that account, from the Hedera portal dashboard.
open ↗
REOWN_PROJECT_ID
Free project id powering the HashPack pairing modal.
open ↗
HEDERA_RPC_URL
Optional. JSON-RPC relay, defaults to the public Hashio endpoint.
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. Make sure all five secrets above are set first. read the build strategy →

Loading the mega-prompt…
Appendix · Market

Market sizing.

TAM
$4.2B
Global video accessibility and localization services market.
SAM
$180M
The addressable market for decentralized media hosting and decentralized CDN infrastructure nodes.
SOM
$12M
Series-A through Indie filmmakers and Web3 streaming platforms requiring per-view caption settlements.

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

See also

Adjacent entries.