It still is somehow based on cookies and/or other client side data (rather than, e.g. looking at your IP address and timestamps as a heuristic).
When I hit the paywall in Chrome, I switched to Safari (which I rarely use, so no NYT cookies or local data there in the cache) from the same machine, and it worke OK.
When I hit the paywall in Chrome, I switched to Safari (which I rarely use, so no NYT cookies or local data there in the cache) from the same machine, and it worke OK.