True On-Chain Art: Code-Generated NFTs Live Forever on Ethereum

🦉 Code Becomes Art

By Owls
Oct 27, 2025, 2:17 PM
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What makes art truly "on-chain"?

Most NFTs store tokens on blockchain but keep artwork on IPFS, Arweave, or servers.​ The blockchain only points to your art - it doesn't contain it.​

Owls NFTs are different:

  • Entire artwork exists as Solidity contract logic
  • Contract generates SVG in real-time with zero external calls
  • No storage lookups, just pure code execution

How it works:

  • At mint, contract reads blockhash and combines with token ID
  • Creates immutable DNA through keccak256 hashing
  • 256-bit seed determines every trait via bit-shifting

True permanence: Your owl replicates across thousands of Ethereum nodes worldwide.​ As long as the network exists, your art renders identically and deterministically forever.​

Art Blocks recently achieved 90% on-chain artwork - a milestone showing the industry's shift toward permanent digital art preservation.​

Sources

Ever wondered what "on-chain art" actually means? Most NFTs store a token on-chain, but the actual artwork lives on IPFS, Arweave, or servers. The blockchain simply points to your art — it doesn't contain it. Owls, on the other hand, are contained on the blockchain directly....

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