Creative Blockchain
📷 Photography · photo metadata

TAGS · x402

A high-throughput API for immutable image provenance. Pay 0.01 USDC to write cryptographically verified EXIF and ownership data to the Base ledger. Perfect for mobile apps and AI scrapers requiring instant, micro-fee attestation without holding native GAS. Payment triggers the instant HTS transfer transfer and metadata commit.

Hedera testnet + x402 paywall· x402 native
Section · Onchain

The primitive.

full primer →

Access to the photo metadata 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 primitiveBy moving from 'gasless' (which usually implies a subsidy) to 'micropayment,' we turn metadata into a billable utility. x402 eliminates the friction of gas fees by using USDC to cover the operational cost of the onchain write in one signature.

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…
Hedera testnet HashScan ↗
Appendix · Market

Market sizing.

TAM
$2.4B (Global digital asset management and metadata security market).
SAM
$115M (Professional mobile photographers and digital asset managers using Base).
SOM
$9.5M (Initial integration with decentralized social apps and NFT minting front-ends).

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

See also

Adjacent entries.

photo metadata
Gasless Metadata Tags
Add and sync photo metadata onchain without gas fees or wallet complications.
photo metadata
Chain-Verified EXIF
Verify and store immutable EXIF data onchain without wallet or gas barriers.
copyright registry
Snapshot Proof · x402
A high-frequency copyright layer for the screenshot era. 0.01 USDC per EIP-712 signature to timestamp image hashes on Hedera. Creators meter every license issuance, and platforms pay to verify provenance in real-time. No subscriptions, just provable ownership on-demand.
image authenticity
TrueLens · x402
A pay-per-seal protocol for photographers. Every shutter click or metadata injection requires a 0.01 USDC micro-settlement to anchor the image's SHA-256 hash and geolocation to Base. Instead of a subscription, users pay only for 'Truth-as-a-Service,' generating a cryptographically verifiable 'Proof of Origin' receipt. Protect your IP and verify reality in an era of Deepfakes, one cent at a time.