Bitcoin testnet4 · Spark REGTEST · no mainnet paths
Creative Bitcoin
🎨 Visual Art · color-themed art auctions

Colorchain Auctions

Host auctions of color-driven artworks with gasless bidding and quick wallet onboarding.

IPFS via Pinata· decentralized storage
Section · Onchain

The primitive.

full primer →

Every color-themed art auctions artifact is pinned to IPFS through Pinata; painters get a permanent CID and a public gateway preview instead of a fragile cloud URL.

Why this primitivePinning the payload to IPFS via Pinata gives a permanent CID; the CID's hash gets anchored to Bitcoin testnet4 so the storage layer is verifiable.

Kernel
a Pinata JWT upload that pins images / JSON / manifests to IPFS and returns a permanent CID — the payload behind every OP_RETURN hash and inscription
Drives the UI as
a 'pinned to IPFS' chip with the CID and an ipfs.io gateway preview
Appendix · Secrets

Required keys.

PRIVY_APP_ID
Privy dashboard → your app. Configure with chainType 'spark' to mint Bitcoin L2 wallets on sign-in.
open ↗
PRIVY_APP_SECRET
Server-side. Required for the merchant Spark wallet to observe incoming sats transfers via the Privy RPC.
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 — it carries its own feature spec, code, setup and checklist. read the build strategy →

loading the build spec…
Open in Lovable ↗mempool.space testnet4 ↗
Appendix · Market

Market sizing.

TAM
$1B
color art auction market
SAM
$250M
color themed auction platforms
SOM
$15M
gasless bidders

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

See also

Adjacent entries.

brush preset exchange
SketchSet Swap
Illustrators trade and license brush presets with zero gas fees and easy Google sign-in wallets.
peer review platform
ArtChain Critique
Painters share work for peer feedback with onchain reputation and gasless login/transactions.
art philanthropy
Illustrate Impact
Facilitate gasless donations and sponsorships for illustrators supporting social causes via easy login.
digital ink art
Illustrator Ink
Support ink artists selling limited editions with gasless minting and sponsored transaction flows.