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WFN QUICK BRIEF · UNDER 1 MIN
The short version
MODE 2 OF 2
What the primary record establishes
ERC-4907 was created on 11 March 2022 and is marked Final. It introduces a temporary user role through setUser, userOf and userExpires. Ethereum — ERC-4907, Final ↗
What the distinction changes
Expiry ends the relevant usage period according to the contract; it is not an ownership transfer. Describing a temporary assignment as a completed sale would merge different states.
What to check before drawing a conclusion
An integration should check who can call setUser, how time is evaluated and what happens when the NFT transfers. Queries must refer to the intended network and contract.
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WFN STORY COMPASS
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Original WFN vector illustrationWFN · 24 October 2026
Editorial noteSource-based explanation with original WFN analysis. Historical records retain their dates; numerical examples are illustrative. The original vector illustration is conceptual and is not documentary evidence.
WFN REALITY LEDGER
What is on the record?
Primary-source explainer
Primary-source explainer
Primary record / reference periodHistorical specification, created 11 March 2022; Final
The linked source supports the documented record; WFN interpretation and illustrative examples are separate.
The extension adds a user role and expiry. Those fields do not alone establish rental payment or rights to physical property.
01 · VERIFIED RECORD
What the primary record establishes
ERC-4907 was created on 11 March 2022 and is marked Final. It introduces a temporary user role through setUser, userOf and userExpires. Ethereum — ERC-4907, Final ↗
The user can exercise the application’s specified usage rights without receiving the owner’s powers to transfer the NFT or assign another user. Ethereum — ERC-4907, Final ↗
02 · WFN EDITORIAL ANALYSIS
What the distinction changes
Expiry ends the relevant usage period according to the contract; it is not an ownership transfer. Describing a temporary assignment as a completed sale would merge different states.
The interface does not by itself set rent, deposits, cancellation or dispute resolution. A commercial rental application needs additional conditions for those relationships.
03 · REVIEW POINTS
What to check before drawing a conclusion
An integration should check who can call setUser, how time is evaluated and what happens when the NFT transfers. Queries must refer to the intended network and contract.
The standard is a building block for temporary permissions. Commercial or physical rights require their own terms and cannot be inferred merely from the value returned by userOf.
