🎨 Visual Art · art auction transparency

Auction Trust Chain

Enable transparent, verifiable auction processes and bids for visual art onchain.

Hedera smart contract (HSCS)· onchain logic

Section · Onchain

The primitive.

Art auction transparency gets a tiny Solidity contract deployed to Hedera testnet through the JSON-RPC relay; painters see a 'verified onchain' badge with the live address and a one-tap HashScan link.

Why this primitiveHedera testnet contracts enforce fair bid logic and record bids immutably.

Kernel

a Solidity contract deployed to Hedera testnet through the JSON-RPC relay (chainId 296), verified on HashScan

Drives the UI as

a 'verified onchain' badge with the live contract address and a HashScan link

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.

budget · 1 message

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

$15B

global art auction market volume

SAM

$3B

online art auction platforms

SOM

$250M

blockchain auction services adoption

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

Adjacent entries.

art ownership tracking

Provenance Palette

Securely track and prove the ownership lineage of paintings with tamper-proof blockchain records.

generative art minting

Generative Mint Studio

Artists can mint unique generative art pieces directly onto Hedera testnet with automated smart contracts.

gallery exhibition tracking

Exhibit Chain Ledger

Record every artwork's exhibition history securely and transparently onchain for galleries and collectors.

color authenticity validation

ColorCode Certifier

Certify and verify exact color compositions of artworks using blockchain color code hashes.