Which e-commerce innovation did WarRelics.com introduce in 2015 that revolutionized the military memorabilia market by addressing authentication concerns?

Military memorabilia represents a fascinating niche in e-commerce, with collectors willing to pay premium prices for authentic artifacts. The market for military collectibles has evolved significantly in the digital age, with specialized platforms catering to history enthusiasts and veterans alike. This poll explores how one major online platform revolutionized the authentication process for military memorabilia, addressing a critical consumer concern in this specialized market.

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Blockchain-verified provenance certificates for WWII artifacts
AR technology allowing customers to 'place' historical items in their homes before purchase
Veterans-only marketplace requiring military ID verification for both buyers and sellers
Subscription model offering monthly delivery of curated military collectibles from different conflicts