Web3 Marketing Startup Spindl Launches On-Chain Ad Network

Spindl, a Web3 startup founded by Silicon Valley veteran Antonio Garcia Martinez, has launched what it bills as the first truly on-chain ad network. Like Web2's off-chain ad networks, this one connects advertisers, publishers, and providers of so-called attribution services that track where customers come from. To be clear, the serving of ad content would occur off-chain as usual. But the advertisers would transfer funds for a campaign to a smart contract, which would release the money to the publisher only once the attribution provider verifies, by reviewing on-chain data, that an ad led to a sale. 

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