Creative Blockchain
📷 Photography · time lapse

ChronoLog · Paid Certificate

A hyper-granular time-lapse protocol where every frame is a validated state update. Perfect for construction audits, botanical studies, and viral 'growth' content where provenance and permanence are gated by micropayments. Paying 0.01 USDC over x402 returns a signed provenance certificate for the work.

x402 track · paid unlockPaid provenance certificate· signed receipt
Section · Onchain

The primitive.

full primer →

One 0.01 USDC payment turns the time lapse record into a signed certificate photographers can email, attach or archive — and the page proves who signed it without asking anyone to trust the server.

Why this primitiveLoading details…

Kernel
a 0.01 USDC payment over x402 that returns a relayer-signed provenance certificate over the WOTS+ head — a portable document anyone can verify without trusting the issuer
Drives the UI as
a certificate card with the signed fields, the issuing signer, and a 'recover signer' check that runs in the browser
Appendix · Secrets

Required keys.

METAMASK_PRIVATE_KEY
Deploys the QUIP verifier to your host chain. Fund on Sepolia via the Google Cloud faucet.
open ↗
SEPOLIA_RPC_URL
Host-chain HTTPS RPC endpoint. Any Sepolia provider works.
open ↗
ETHERSCAN_API_KEY
Required for npx hardhat verify after deploy.
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 build prompt…
Open in Lovable ↗Sepolia Etherscan ↗
Appendix · Market

Market sizing.

TAM
…
SAM
…
SOM
…

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

See also

Adjacent entries.

time lapse
ChronoCapture Log
Pin time-lapse image sequences on IPFS to preserve and share permanent chronological photo stories. Ownership is sealed inside a post-quantum QUIP vault.
image authenticity
TrueLens · Paid Certificate
A pay-per-seal protocol for photographers. Instead of a subscription, users pay only for 'Truth-as-a-Service,' generating a cryptographically verifiable 'Proof of Origin' receipt. Protect your IP and verify reality in an era of Deepfakes, one cent at a time. Paying 0.01 USDC over x402 returns a signed provenance certificate for the work.
photo prints trading
ProofSheet · Paid Certificate
Eliminate listing fees and gas friction by making digital ownership a metered utility. Collectors pay-per-view to unlock raw file access, and pay-per-hop to route shipping data to print houses, with every state change settled via a signed EIP-3009 micropayment. Paying 0.01 USDC over x402 returns a signed provenance certificate for the work.
provenance tracking
LensSeal · Paid Certificate
A sub-cent ledger for digital authenticity. Creators monetize the 'truth' by charging viewers to verify the original metadata and historical edits of high-value media. Paying 0.01 USDC over x402 returns a signed provenance certificate for the work.