Provenance Palette · vault
Digitally certify and mint provenance tokens for unique physical artist palettes. A bespoke Solidity mandate vault on Hedera testnet holds the per-transaction cap, daily cap, expiry and revocation switch for the agent that acts here — the contract refuses an over-cap cart before a single tinybar moves, and the seller binds the settled hash back to it.
The primitive.
The onchain primitive runs at the right moment in the flow and surfaces a clear, verifiable result that painters can act on without web3 jargon.
Why this primitiveSpending authority for an autonomous agent is on-chain state no native service models, so this is the rare case where a contract earns its deploy: the human's limits are enforced by the ledger, not by the agent's good manners.
Required keys.
Add these in your Lovable project under Settings → Secrets before pasting the prompt below.
The build prompt.
Paste into a fresh Lovable project. Make sure all five secrets above are set first. read the build strategy →
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Market sizing.
Indicative figures for hackathon pitches — refine with your own research before raising.