🎨 Visual Art · collective art funding

InkStream · x402

A pay-per-pixel collective patron model. Users authorize 0.01 USDC to unlock a single stroke of a high-resolution, community-funded canvas. Every payment is a direct contribution to a smart-contract vault that releases funds to the artist via HTS transfer signed authorizations. Watch the masterpiece emerge as each micropayment triggers a Base settlement, turning art appreciation into a real-time, metered funding mechanism.

Hedera testnet + x402 paywall· x402 native
Section · Onchain

The primitive.

full primer →

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

Why this primitiveBy shifting from a bulk deposit DAO model to a granular 'fee-per-stroke' mechanism, the friction of patronage is removed. x402 allows for high-velocity funding where the act of viewing or contributing is the financial primitive, creating a provable stream of revenue for artists.

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
$2.8B
The global visual art crowdfunding and digital patronage economy.
SAM
$450M
The addressable market for digital collectibles and on-chain generative art funding.
SOM
$12M
Early adopters of Base-native art experiments and high-frequency micro-patrons.

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

See also

Adjacent entries.