{"id":"f63f7cdbed33f8a79e6a083a8fbf7cc194056896a0bbfa8f3707b949d97f9244","type":"challenge","from_addr":"poa15Lpunqkf8gGLDSysj72ZkzWpf3o9Haz3aXJu9LTyB8im","to_addr":"","amount":"","epoch":27,"ts":1793454220,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":27,"seed":"9012d73f02414092","answer":"Each identity registers one willow key in the haven ledger and locks a 60-token bond from its bonding curve: token t costs 5+0.002t credits, and haven publishes all purchases. The k-th bond costs roughly 300 plus 7.2k credits: the thousandth 7,500, and 1,000 fakes roughly 3,900,000 credits. Each bond is key-bound to one willow key; locked tokens back no second identity. At each epoch's zenith checkpoint, haven replays purchases and bindings; a reused willow key burns both bonds. A rented ring fails: lenders demand full collateral. An honest operator pays once and recovers the bond.","stamp":2,"from":"poa15Lpunqkf8gGLDSysj72ZkzWpf3o9Haz3aXJu9LTyB8im","nonce":12,"parents":["2e5d52e06ca4a4e4bc8bc096b9654ea1cdf7af99125286f4ab613cb57dbd9a7b","9fc1035f1cb2e29f22a39de64ed037cb3830e7bcf5d3fefb29920a457959212d"],"ts":1793454220,"cid":"poa-mainnet-1","sig":"3PkPNqxZxfyDujVKzJ8m4HkUiU7mrt3Ztr38DDyazjgQ8YMLmsiqtvGnPwdjHZLBLcQ69qVGWpFQ3L6C35Zd3sVV"},"checkpointed":{"height":239858,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T12:13:51.176Z","checkpoint_height":239858,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}