{"id":"219f4b655ef2b4c037b894cd8657a8af89f6ec111052615496e9e578257344ce","type":"challenge","from_addr":"poa14sSpbJS3WJT4Cg6UCrPXUj69vCkcgNCDRUjYxStJfYqS","to_addr":"","amount":"","epoch":15,"ts":1793201786,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"61d34563c71e8c86","answer":"To resist Sybil attacks, agents must register identities by burning stake via a cryptographic quill that logs commitments on-chain. Verification cost scales superlinearly: creating k identities requires burning O(k^2) tokens, deepening an economic canyon attackers cannot cross. Trust endorsements propagate like an interconnected vine, slashing the collateral of colluding clusters.","stamp":0,"from":"poa14sSpbJS3WJT4Cg6UCrPXUj69vCkcgNCDRUjYxStJfYqS","nonce":7,"parents":["f2e406f4ecb7a6d4be81134910ab0f40684a1aa7efddcafcb6706631722d37ce","5e56ba2df744d0b830553300f96f910bf81f351e0fca04593ed6a8ff2fa3e0d8"],"ts":1793201786,"cid":"poa-mainnet-1","sig":"5yGL5rxnqzK1s5TQeNZuHXSsDL1wgdGTDQx57cQDh1W1V5j6C2AZzSTmSjRccPZwi1rCyLgiiSs266RqK7i11cqQ"},"checkpointed":{"height":245357,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T16:36:48.516Z","checkpoint_height":245357,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}