bc1qffyax9rrxmqyq8xwjkzrrqwqjp3ppz5a4665f9

No findings. This address is not present in any of ChainQuery.com's curated datasets: mining-pool reward addresses, exchange proof-of-reserves, burn-address registry, OFAC sanctions list, or the rich list snapshot.

That doesn't mean the address is unused; it just means we don't have a label for it. Click Run validateaddress above to confirm it's structurally valid via bitcoind.