{"as_of_ms":1791833137900,"chain":"zcash","network":"main","height":3515540,"total_supply_zec":16982664.2280448,"pools":{"transparent":{"zec":11947093.80575077,"zat":1194709380575077},"sprout":{"zec":22309.44195128,"zat":2230944195128},"sapling":{"zec":476392.55949586,"zat":47639255949586},"orchard":{"zec":361681.03444018,"zat":36168103444018},"lockbox":{"zec":69213.9375,"zat":6921393750000},"ironwood":{"zec":4105973.44890671,"zat":410597344890671}},"shielded_zec":4966356.48479403,"shielded_pct":29.2437,"ironwood":{"activated":true,"node_aware":true,"upgrade_status":"active","activation_height":3428143,"pool_zec":4105973.44890671,"orchard_pool_zec":361681.03444018,"migration_pct":91.9045},"_cache":"miss","context":{"what":"NU6.3 \"Ironwood\" introduces a quantum-recoverable shielded pool succeeding the Orchard pool; post-activation, user-to-user transfers land in Ironwood and the turnstile makes cross-pool migration amounts public.","testnet_activation_height":4134000,"mainnet_activation":"target ~2026-07-21 (height TBA)","migration_pct_meaning":"share of Orchard-protocol value (orchard + ironwood pools) already in the Ironwood pool","history":"/v1/zec/ironwood/history (free — 15-min series for charts, ?window_ms&max_points)","human_page":"https://ironwood.seneschal.space (same data, charts + prose)","penny_fact":"/v1/q/zec/pools ($0.001 — same numbers, agent-priced)","spec":"https://zips.z.cash/zip-0229"}}