The Physical-Digital Bridge ™
Store Physical Collectibles on the Blockchain
4K Protocol is the world's most trusted way to bring real-world collectibles on-chain. We make it easy for brands, marketplaces, and dApps to mint, redeem, and manage Physically-Backed NFTs.
$10 million secured
Total assets secured and growing quickly
Backed by the best
Plug into DeFi
Unlock new value from your collections.
Collateralization & lending
Fractionalized ownership
AMM liquidity pools
Interoperability
Build Projects
Power-up your marketplace or dApp.
Easily support Physical NFTs
Seamless minting and redemption
Hand off inventory management
Plug & play solution
TOKENIZED MERCH
Tokenize your merchandise.
Build value for core evangelists
Easily transact with Physical NFTs
Earn residual fees on resales
Push your brand into Web3
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Protocol
The 4K Protocol Vision
4K Protocol is built with interoperability, decentralization, and composability in mind to support a growing ecosystem of collectors, marketplaces, dApps, and communities.
Guardians
Guardians are nodes on the network that store physical assets and approve minting of physically-backed NFTs.
Physical Validators
Physical Validators are nodes on the network that coordinate authenticators and appraisers to determine authenticity and asset value.
Physical Oracles
Audit Oracles keep Guardians accountable by physically auditing the stored assets. Physical Asset Pricing Oracles provide a price feed to enable integrations with DeFi.
Interoperability
4K Protocol is a bridge that enables Physical NFTs to move across multiple L1s and L2s, even on non-EVM compatible blockchains.

4K Vault
Unlock Value with the 4K Vault
The 4K Vault is your dashboard for managing Physical NFT collections, logistics, and redemptions. Get the most out of your Physical NFTs by connecting to marketplaces, dApps, and DeFi.
Manage Collections
Mint collections of Physical NFTs. Create branded landing pages to showcase your inventory.
Exchange & Trade
Make offers on collectibles using WETH, USDC, or WBTC. Frictionlessly exchange using Physical NFTs.
Inventory Management
Easily manage minting, storage, and redemption logistics. Update your inventory at any time.
Fee Management
Quickly update storage and insurance fees. Set residual payments for secondary market resales.

Live Networks
4K Protocol and Physical NFTs are Currently Supported On:
Upcoming protocols












Get involved
Help us Build the Future
Become a network node or explore branded partnerships. Earn incentives for your contributions.