Creative Blockchain
🎥 Videography & Film · subtitle generation

AutoSubtitle Mint

Generate and store verified subtitles onchain to guarantee transcript authenticity.

Hedera smart contract (HSCS)· onchain logic
Section · Onchain

The primitive.

full primer →

Subtitle generation gets a tiny Solidity contract deployed to Hedera testnet through the JSON-RPC relay; videographers see a 'verified onchain' badge with the live address and a one-tap HashScan link.

Why this primitiveSmart contracts timestamp and verify subtitle data immutably on Hedera testnet network.

Kernel
a Solidity contract deployed to Hedera testnet through the JSON-RPC relay (chainId 296), verified on HashScan
Drives the UI as
a 'verified onchain' badge with the live contract address and a HashScan link
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…
Hedera testnet HashScan ↗
Appendix · Market

Market sizing.

TAM
$1.1B
video accessibility tools
SAM
$110M
subtitle generation software
SOM
$14M
content creators needing verified transcripts

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

See also

Adjacent entries.

video copyright
FrameChain Auth
Verify and timestamp original video frames onchain to prove authentic content ownership instantly.
edit history
EditVersion Ledger
Track and verify every edit version of a video project transparently on the blockchain.
licensed assets
ClipLicense Swap
Facilitate secure, onchain licensing and transfer of video clips between creators.
color grading
ColorGrade NFT
Create and trade unique onchain color grade presets as NFTs for creative reuse.