Announced live at ETH Denver, the upcoming NFT Passports also feature cross-chain support.
On Friday, blockchain platform Harmony — whose mainnet runs on the 
Ethereum network, claiming to have two-second transaction finality and 
fees 1,000 times lower than Ethereum — announced the launch of its Bored
 Ape Yacht Club Passport. The Passport enables users to import proof of 
their apes into DeFi Kingdoms, a play-to-earn game built on the Harmony 
blockchain with over 120,000 monthly active users. During its initial 
stages, Ape holders will be able to validate and display their assets in
 the game across multiple blockchains when they connect their MetaMask 
wallet to DeFi Kingdoms.
The infancy of cross-chain technology means that funds could be at risk when bridging across chains, as the biggest decentralized finance hack thus far this
 year showed. However, as stated by its developers, Harmony’s Passport 
does not move assets; instead, it proves asset ownership across multiple
 blockchains, guaranteeing their authenticity throughout. Its 
cross-chain bridge, Horizon, currently supports interoperability between
 Harmony, Ethereum, BNB Chain and three other blockchains.
Leo Chen, a team member at Harmony, explained:
“We
wanted to give all NFT holders more utility and options to display
their NFTs and participate in the Metaverse. Bored Ape Yacht Club
holders are the first choices. The cross-chain identity creates a secure
and easy way to do so without putting their assets at risk.”
In a similar gesture, last month, Twitter kicked off its nonfungible token campaign,
 allowing its paid subscribers to show off their NFT possessions as 
profile pictures. However, the technical functionalities of the feature 
are in the testing phase, with only Ethereum-based NFTs eligible and no 
support for cross-chain functionalities.
source link :  https://cointelegraph.com/news/harmony-launches-bored-ape-yacht-club-nft-passport