Why LG is taking digital ads on-chain

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LG Electronics is developing a blockchain-based advertising platform built on Arbitrum, aiming to bring more transparency and automation to digital ad trading later this year. The system would let advertisers and publishers buy, sell and manage ad inventory through a shared on-chain ledger, reducing the reconciliation gaps that often cloud programmatic advertising.

The platform reportedly records available ad slots, impressions and customer interactions on blockchain infrastructure. Smart contracts could automate parts of campaign execution, making ad delivery easier to verify and harder to dispute.

The move matters because connected TV and digital out-of-home advertising are becoming larger battlegrounds for brands seeking measurable reach. LG Ad Solutions says it has access to 216 million global LG smart TVs, including 49 million in the US, giving the company a large potential advertising footprint.

LG has already piloted the system with an unnamed Japanese advertising agency and is evaluating commercial rollout. Samuel Byungsun Park, head of LG’s blockchain research department, said the company is “evaluating whether this approach can deliver meaningful value to advertisers, publishers and audiences,” according to a Fortune-cited report.

The bet is not risk-free. Blockchain can improve audit trails, but it does not automatically solve bad data, weak consent practices or poor campaign design. LG’s earlier NFT push also shows that Web3 experiments can lose momentum when consumer or advertiser demand fails to mature.

For marketers, the sharper question is not whether ads should move “on-chain”. It is whether blockchain can make media buying cheaper, cleaner and more accountable than today’s fragmented ad-tech stack.