🎨 Visual Art · digital painting layers

Layer Ledger · x402

A professional digital canvas where every brushstroke or 'Merge Layer' action is a micro-settled provenance event. Instead of a single final mint, creators pay 0.01 USDC to cryptographically seal and timestamp individual process layers. This builds an immutable 'Proof of Craft' ledger that viewers or collectors pay to unlock, exposing the raw human technique behind AI-saturated art.

Hedera testnet + x402 paywall· x402 native
Section · Onchain

The primitive.

full primer →

Access to the digital painting layers 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 primitiveMoves digital art from a 'finished product' commodity to a 'process-as-a-service' model. x402 handles the high-frequency, low-value writes (sealing layers) and reads (viewing history) that would be economically impossible on-chain without micropayment primitives.

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
$4.2B
The global creative software and digital collectible market shifting toward granular version control and provenance.
SAM
$850M
Addressing the 'Proof of Human' segment of the digital art market and the burgeoning layer-based NFT derivative market.
SOM
$12M
Target focus on high-fidelity digital illustrators on Hedera using Procreate/Photoshop who require process verification to command premium prices.

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

See also

Adjacent entries.