primer · onchain

Four onchain primitives, demystified.

Every idea in this repo leans on one of four web3 primitives. Each one runs against Cronos Testnet (a free, real testnet) so you can ship a verifiable demo with zero hosting and sub-cent gas paid from a faucet-funded wallet.

The five secrets

Add these in your Lovable project (Settings → Secrets) before pasting any mega-prompt:

METAMASK_PRIVATE_KEYExported from MetaMask. Fund on Cronos Testnet via the Google Cloud faucet.open ↗
PRIVY_APP_IDGoogle sign-in + embedded-wallet transactions.open ↗
PINATA_JWTPin to IPFS.open ↗
CRONOS_RPC_URLOptional. A public RPC is used if omitted.

onchain logic

Cronos smart contract

250 ideas use this

kernel

a Solidity contract deployed to Cronos Testnet via MetaMask private key, then verified on Cronos Explorer

how it drives the UI

a 'verified onchain' badge with the live contract address and an Cronos Explorer link

EXAMPLE IDEAS

decentralized storage

IPFS via Pinata

247 ideas use this

kernel

a Pinata JWT upload that pins images / JSON / manifests to IPFS and returns a permanent CID

how it drives the UI

a 'pinned to IPFS' chip with the CID and an ipfs.io gateway preview

EXAMPLE IDEAS

onchain authorship

NFT provenance mint

250 ideas use this

kernel

an ERC-721 contract on Cronos that mints a creator-owned token pointing at an IPFS CID, verified on Cronos Explorer

how it drives the UI

a 'mint to claim authorship' button that returns the tokenId, owner address, and Cronos Explorer link

EXAMPLE IDEAS

Four onchain primitives, demystified.

The five secrets

Cronos smart contract

IPFS via Pinata

Privy social + embedded-wallet tx

NFT provenance mint