Right, I saw it there first.

Block height as a perfect timestamp and historic events measurement on #Bitcoin Standard.

nostr:nprofile1qqsxu35yyt0mwjjh8pcz4zprhxegz69t4wr9t74vk6zne58wzh0waycpz9mhxue69uhkummnw3ezuamfdejj7qg4waehxw309ahx7um5wghx77r5wghxgetk9uq3samnwvaz7tmxd9k8getj9ehx7um5wgh8w6twv5hsj7hdd2 ?