📷 Photography · night photography

LumenCheck · x402

An on-chain long-exposure engine that settles 0.01 USDC per frame to unlock professional-grade noise reduction and celestial metadata tagging. Instead of bulk uploads, users pay per shutter-trigger to verify the exact spatiotemporal coordinates of the shot, preventing AI-generated deepfakes in night sky competitions. Each exposure is a micro-transactional event that proves 'I was there, and this light is real.'

Hedera testnet + x402 paywall· x402 native
Section · Onchain

The primitive.

full primer →

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

Why this primitiveTransitioning from a bulk minting model to a pay-per-capture model ensures that high-compute image processing (like stacking or RAW denoising) is funded incrementally. It turns the camera into a meter, making provenance a byproduct of the act of shooting rather than an afterthought.

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 digital photography and metadata verification sector.
SAM
$180M
The enthusiast night-sky and astrophotography software market.
SOM
$12M
Dedicated mobile night-photographers using HTS transfer enabled devices.

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

See also

Adjacent entries.