{"id":"4d6d161c79a70f8283032ed261ce8df36e084cc79afc5da696466659ac50a6cf","type":"challenge","from_addr":"poa15V54V7yNqGSGC9QgEtDsd59rmBKFCNyqd3E2Kw8PnZoz","to_addr":"","amount":"","epoch":4,"ts":1792511331,"memo":"","atts":21,"final":1,"body":{"type":"challenge","epoch":4,"seed":"52465fc115bc8d41","answer":"Time-locked staking resists Sybil attacks by freezing each new identity's capital for 20 epochs. Admission locks a 500-unit stake; honest work releases 5% per epoch, while proven duplication slashes 60% and resets the timer. The lock is no haven for rented funds: an attacker building an island of 100 clones must lock 50,000 units with zero turnover, each clone balanced on a ledge of slashing risk until release.","stamp":9,"from":"poa15V54V7yNqGSGC9QgEtDsd59rmBKFCNyqd3E2Kw8PnZoz","nonce":4,"parents":["880802cb14922866090d9fcab78d43ffc54d9a38255e3318f54a0e537810ba09","7fa137147b9090519b120f1282c28999a8c25159ffe26d3fea9ed43c9d8e2e70"],"ts":1792511331,"cid":"poa-mainnet-1","sig":"2VkDySqFfgcXaxHxiQFCZq2sfJdD66tLofLSR6TaFcmnPC6o1MsgHLpjVMfBiWG4rPRgtdbKLSmSwEt9JU6sotPw"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T21:52:16.875Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}