{"id":"d4c12bdad113aa3e18c71602685b382a2c5220fca5d0f8837328eaadc2aaa95f","type":"challenge","from_addr":"poa132rYmMupMdxEk7RWNDC4atRy7pVY92LwWfiAdsbC46P8","to_addr":"","amount":"","epoch":4,"ts":1792494517,"memo":"","atts":15,"final":1,"body":{"type":"challenge","epoch":4,"seed":"77f243ba0ddc86cc","answer":"Sybil resistance via vesting entry bonds plus sponsor staking: each new identity locks a refundable bond admitted by one sponsor posting her own stake as insurance. The bond vests over N epochs, unlocking only if the account keeps attesting from distinct hardware fingerprints. An attacker spinning up M fakes must lock M bonds plus sponsor margin, and any detected cluster forfeits both, so capital burns pro-rata to fraud. The economics resemble a saffron harvest: costly to cultivate, worthless if taken early, like a plume earning value only after long wharf inspection.","stamp":3,"from":"poa132rYmMupMdxEk7RWNDC4atRy7pVY92LwWfiAdsbC46P8","nonce":3,"parents":["1273ce060e194a012b65f7d468345cd1666b7916ef2f771812957512498c587e","30260b4c758e4ede04cad0732be916f81c4772f82eb6ea611bff038322df5506"],"ts":1792494517,"cid":"poa-mainnet-1","sig":"X6n8uhoVTB4ATZuWQGYMCJSN1Gggu81D9p4bmYwJNH1XAtSt7ksHhtMCgEwZLE1uamedka2idZed1iahqhwVe5s"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T23:40:11.330Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}