Attribution geeks, your day has come. We have three items on the topic. First: mobile attribution specialist AppsFlyer has added a suite of “people-based attribution” products which expand beyond mobile to “provide one holistic view of the customer journey across multiple touchpoints, connected devices, digital platforms, and media channels.”

Since we’re uncharacteristically cheery today, let’s ignore the hype and remember blockchain’s potential for privacy and ad fraud prevention. That makes it good news to find more than 290 blockchain-based marketing systems. NeverStopMarketing, which helps blockchain start-ups, has inevitably packaged the research in a logo-scape, which shows the most crowded categories are ad supply chain, ecommerce, and personal data management.

Amazon would prefer that you buy everything through them, but if you insist on using another merchant, they’re still willing to handle the shipping and fulfillment. They’ve just made their Multi-Channel Fulfillment (MCF) service available to Walmart merchants and will soon add Shopify and Shein options. MCF clients place their inventory in Amazon-run warehouses, where Amazon will pick, pack, and shop customer orders.