📷 Photography · location tagging

MomentMap · x402

$0.01 — Pin to the Permanent Atlas. Metadata is free, but geographic permanence is earned. MomentMap settles a 0.01 USDC micro-transaction via x402 to seal your photo’s coordinates to the Base-IPFS bridge. Every 'View' or 'Verify' call from third-party travel agents or historical archives triggers a micropayment back to the photographer, turning a map into a high-frequency royalty machine.

Hedera testnet + x402 paywall· x402 native
Section · Onchain

The primitive.

full primer →

Access to the location tagging 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 putting the payment at the point of 'geographic signing,' the act of tagging becomes a proof-of-stake in a spatial data layer. x402 replaces the 'like' with a 'buy-in' to a verifiable global ledger.

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
$1.2B
The total addressable market for verifiable, user-owned geospatial metadata in the AI training and travel sectors.
SAM
$85M
The high-frequency location tagging and spatial data licensing market for autonomous entities.
SOM
$4.2M
420M yearly micro-signatures from mobile mobile photographers and IoT mapping sensors.

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

See also

Adjacent entries.