What is gone?
Nothing is marked as gone for this active marketplace record. This section is kept to make status differences explicit.
OpenSea
ActiveOpenSea is an active NFT marketplace founded in 2017 and represented here as a source-reviewed active marketplace draft.
Source-reviewed draft. Launch year is supported by secondary/database sources; active status is based on public marketplace availability and should be periodically rechecked.
GeneralStandalone MarketplaceMulti Chain
Source-reviewed draft record. Sources have been added, but this record still needs final public-quality review.
Overview
Classification notes
OpenSea is an active NFT marketplace founded in 2017 and represented here as a source-reviewed active marketplace draft.
The record below separates frontend state, contracts, assets, evidence, and archive links so uncertainty stays visible.
Core field-guide question
What is gone, what remains?
What remains?
The public marketplace frontend and marketplace identity remain available. Historical incident and market-share context should be modeled through events rather than changing active status.
Where did users or assets go?
Not applicable while the marketplace is represented as active. No migration destination is asserted.
Timeline
Recorded events
OpenSea founded
2017 · Launched · confidence medium
OpenSea was founded in 2017 and became a major general NFT marketplace.
Evidence
Source notes
Source-reviewed draft sources are listed below. They support the current record, but final public-quality review may still require stronger official or archived sources.
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OpenSea company profile
Crunchbase · Database Reference · reliability medium · claim Launch Date
Published: unknown · Accessed: 2026-05-16 · Archive: Wayback search
Used as secondary/database support for OpenSea identity and founding year.
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OpenSea marketplace home
OpenSea · Marketplace Page · reliability medium · claim Status
Published: unknown · Accessed: 2026-05-16 · Archive: Wayback search
Used only to support that the public marketplace domain is currently reachable; not a full status audit.
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How one company took over the NFT trade
The Verge · News Article · reliability medium · claim Launch Date
Published: 2022-02-02 · Accessed: 2026-05-16 · Archive: Wayback search
Secondary longform source used to support OpenSea founding/background; not a replacement for an official primary launch source.
URL & archive
Current access
Archive search
Archive history
https://web.archive.org/web/*/https://opensea.io/
Search Wayback history →Archive state: Wayback search available
Domain: opensea.io
This is a Wayback search entry, not a pinned exact historical capture.
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