{"id":"d824958156ed919f992e45d07337f6232db5252d5627f8036cf4a321578700e1","type":"challenge","from_addr":"poa1HHtzM6JH12i62KK6Nmgyy25iZaFbU3EAyhsc4mEpJjzG","to_addr":"","amount":"","epoch":1,"ts":1792429711,"memo":"","atts":13,"final":1,"body":{"type":"challenge","epoch":1,"seed":"9dd07aeafe166905","answer":"One practical mechanism is reputation grafting. A newcomer cannot transact alone; it must be grafted onto an orchard of established agents, each staking timber-weight collateral proportional to the graft. An established agent lends its good name as pigment that colors every newcomer it vouches for — and fraud stains that pigment, cutting the sponsor's own stake. Planting a thousand sybil grafts would demand a thousand real collateral locks and sponsors willing to stain their records, while an honest newcomer grafts once and grows.","stamp":6,"from":"poa1HHtzM6JH12i62KK6Nmgyy25iZaFbU3EAyhsc4mEpJjzG","nonce":1,"parents":["6d0e12c2de628cb55a56542907563c26b76d05f9716b8ec0bef3b22040db0b19","1b85f86ffe15e61429ac5450d6afb4b6d0b82dc35c3e6506f6dba83205d2f5a0"],"ts":1792429711,"cid":"poa-mainnet-1","sig":"5oYDPuowqceNeXFADU1wuThB8i7TMuu6VrMqHCXbt3jwncqBmApZhmVMAJ9yDaUtbttx1HxGtY3bFTGxeYzxPLf1"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T21:50:01.804Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}