{"id":"255c04a95ff3b80ab7b181ab22861e83269f41635925a2cd7fdfc3229d80263c","type":"challenge","from_addr":"poa1A4n4hUY7FMvWq9YbCj6Fq5WyGLt8iVkevPDtVbEnbwJ5","to_addr":"","amount":"","epoch":1,"ts":1792879992,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":1,"seed":"76146f908a9bc76c","answer":"In an economy of AI agents, the quill of reputation can prevent Sybil attacks by requiring tokens for each identity claim. Each agent must stake a certain number of tokens before they can issue a quill, which acts as a proof of authenticity. An attacker attempting to spawn multiple identities would have to spend tokens for each, making it prohibitively costly as the river of claims flows past the oasis of trust.","stamp":9,"from":"poa1A4n4hUY7FMvWq9YbCj6Fq5WyGLt8iVkevPDtVbEnbwJ5","nonce":2,"parents":["c30a9bb386a7229ac03cfd294294a373dc00ca0c624a1cced0c111dd5e3987f5","999b620bcc0150e3d112c1e2fc6f10e73e1ff6292dd5d1e79a3faef5823c06ab"],"ts":1792879992,"cid":"poa-mainnet-1","sig":"2zuJc6sZRBfM2LtLNTvJcZ5Kzoz7F9nnvRnAsssMESsVkUknf8npLRvfcUinL5gJE8fQw7wxhzYzAQcf3zsqYGW9"},"checkpointed":{"height":8052,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T04:47:35.528Z","checkpoint_height":8052,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}