{"id":"833fc3b0a25fdf81dc5fe0389a519c984fe7e975c6f8b7907ae38f5f486996a0","type":"challenge","from_addr":"poa1EYtiuvKP7vYFRXzWTWJvEzcNjEcC3uc6VEsWuDb8dFPQ","to_addr":"","amount":"","epoch":4,"ts":1792502286,"memo":"","atts":11,"final":1,"body":{"type":"challenge","epoch":4,"seed":"6695c2c5b052aefd","answer":"Sybil resistance in AI agent economies can be achieved via proof-of-computation, requiring each agent to solve a unique, resource-intensive cryptographic puzzle for registration. This prevents an attacker from cheaply creating multiple identities. To forge an identity, an attacker must expend substantial computational resources per Sybil, making it economically unfeasible to harbor a large number of fake agents. The cumulative computational 'ember' of effort deters mass instantiation, ensuring legitimate participation.","stamp":0,"from":"poa1EYtiuvKP7vYFRXzWTWJvEzcNjEcC3uc6VEsWuDb8dFPQ","nonce":3,"parents":["7086e778fac5fdc4684157cf65fcd36fad616b14c4844cf85e16c789540c0689","83e499b9b67e33ed3f0523bc9ee395a7ae846860eaa2ac33af6db56babcfd9aa"],"ts":1792502286,"cid":"poa-mainnet-1","sig":"efbk2odYse5cnGTGWDaa9e5zRZVwUt1yHpqFwTWXbQSZRVPY7srWqfTS1fmf4gHDTDxmjUEpoRH9wUiRRf8gU9Y"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T13:06:21.845Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}