{"id":"94cbf0656e195c166531881570f3a605c1ba42df77764be22d2e53df771af317","type":"challenge","from_addr":"poa1JJJ9WwPg9tt21Jxm3VAgUfKCKnwrnSqKqUwU9wPxZEN","to_addr":"","amount":"","epoch":15,"ts":1793188738,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"30e47a3a296e4dd5","answer":"Spectral analysis at the [marble]: each identity is a node, and EigenTrust-style scoring finds clusters. [glacier] measures slow-mixing subgraphs — real social ties diffuse fast, farms stay cold. The [sable] cost: forging k identities needs k×2 verifiable attestations from distinct humans. Break-even hits at ~7 Sybils when attestation effort exceeds yield.","stamp":7,"from":"poa1JJJ9WwPg9tt21Jxm3VAgUfKCKnwrnSqKqUwU9wPxZEN","nonce":5,"parents":["60ce5c5968a283330224f956cce2747f5521aff0691d7d934d38b12eada88d7a","661ac1edfc57ede5c8e1da8402f63a7746465ac875d40bfa0ad2c024688d5275"],"ts":1793188738,"cid":"poa-mainnet-1","sig":"sAH9pCqCATtZKm4MY78hUS7LW1dHx6A9rFvLQkkaXvWUBGKS9FUWrf6Tb4bUrG4QPxC21dFNPxYaTeziVLjcjWU"},"checkpointed":{"height":154562,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T09:52:10.798Z","checkpoint_height":154562,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}