TerraNullius

Terra Nullius is the first inscription contract on Ethereum.

It establishes a direct model for blockchain-based permanence, where authored messages are written irreversibly and retained as part of Ethereum’s history. The contract has no supply cap, no permissions, and no economic mechanism beyond gas costs.

Despite being deployed in Ethereum’s earliest days, Terra Nullius has remained active across multiple eras, with renewed usage during later periods of interest in on-chain art and NFTs.

Terra Nullius is the first inscription contract on Ethereum.

It establishes a direct model for blockchain-based permanence, where authored messages are written irreversibly and retained as part of Ethereum’s history. The contract has no supply cap, no permissions, and no economic mechanism beyond gas costs.

Despite being deployed in Ethereum’s earliest days, Terra Nullius has remained active across multiple eras, with renewed usage during later periods of interest in on-chain art and NFTs.

Terra Nullius is a minimal smart contract deployed on August 7, 2015 at block 49,880 by Semiel — just 8 days after Ethereum mainnet launched. Introduced on r/ethereum as "the first interactive Ethereum contract," it allowed any address to permanently inscribe a message into Ethereum's state.

Each inscription records the author's address, an arbitrary text message, and the block number at which it was made. Once written, an inscription cannot be modified, transferred, or removed. The contract is intentionally append-only: it does not support ownership transfer, deletion, or mutation. Its sole function is to accept new inscriptions and preserve them indefinitely.

The name comes from the Latin legal concept of "terra nullius" — land belonging to no one — meaning any territory that could be claimed through occupation. 22 inscriptions were made in 2015.

The Guinness World Records later recognized Terra Nullius as the first NFT on Ethereum. A modern ERC-721 wrapper contract was subsequently deployed, allowing the original 2015 inscriptions to be traded as NFTs on contemporary platforms.