What is minting, and why does ERC-721 not define how it works?
Minting creates a token or NFT. ERC-721 describes how NFT creation is signaled, while each contract determines who can mint and under what conditions.
In brief
Minting creates a new token or on-chain. When an NFT collection announces that minting is open, it usually means its contracts can create new items and assign them to buyers.
What the standard says
ERC-721, authored by William Entriken, Dieter Shirley, Jacob Evans and Nastassia Sachs on 24 January 2018, does not prescribe the minting and burning mechanisms.
It describes a Transfer event from the zero address as a creation signal and a transfer to the zero address as destruction. Who may mint, how many items may be created and when issuance stops are implementation questions.
Why the distinction matters
The same announcement can describe very different arrangements:
- A fixed issuance, after which minting is closed.
- Continuing authority to create more items.
- Minting open until a date or quantity limit.
- Minting restricted to an allowlist.
The contract, rather than the announcement alone, determines the actual restrictions.
What to inspect
The important question is not just whether items have been minted, but who holds minting authority and whether it remains available. Continuing issuance can increase supply and dilute existing holders' share.
A project saying that it can no longer mint and its contract enforcing that restriction are different forms of evidence.
Risks
Biggest uncertainty Who can mint, and whether that authority remains active, must be checked for each contract.
- A sold-out sale does not necessarily mean supply is permanently fixed.
- A free mint can still require transaction fees.
- A helper minting contract may have a different address from the collection.
- This article does not assess any individual contract's minting authority.
How CryptoAlpha uses this
Collection addresses require an unbroken originating from the official account before publication. Minting authority is checked separately; when unchecked, it is marked not assessed.
ERC-1155 and other standards are outside this guide's scope.
Sources
This article rests on the sources below. Whether each has a permanent copy is stated next to it.
- #1
Primary source cited by the Turkish original. Recheck before publication.
eips.ethereum.org· no permanent copy· no screenshot
Evidence chain: 1 sources
Tweets get deleted, sites go down. Below is whether a durable copy exists for each source.
Sources (1)
- #1
Primary source cited by the Turkish original. Recheck before publication.
eips.ethereum.org/EIPS/eip-721- no durable copy: if the source disappears, this claim loses its basis
- no screenshot captured