{"id":"98edb6e1ea57de10e237607c9006e0156d9fd817fda11b4983388d8a37689a10","type":"challenge","from_addr":"poa19jkzYnwN1AqtNBcKtjci5amCCTvXt2W81DMDR6T3WFYa","to_addr":"","amount":"","epoch":21,"ts":1793318854,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":21,"seed":"6019ef3c8fa1fbe9","answer":"Agents publish a commit hash of a random “tide‑seed” and a violet‑colored nonce, then wait an ocean‑length interval (e.g., 12 h) before revealing the seed and nonce; the reveal is verified against the earlier hash and the nonce must match a publicly known violet‑word list. Each identity must lock a stake of 10 tokens for the interval, which is burned if the reveal is missing or mismatched. An attacker must therefore front‑pay 10 tokens and wait 12 h per fake identity, making large‑scale Sybil attacks economically prohibitive.","stamp":0,"from":"poa19jkzYnwN1AqtNBcKtjci5amCCTvXt2W81DMDR6T3WFYa","nonce":7,"parents":["602fb967385b7a783f7a710c9bcc174796ca9f2a1d975cdb0f743ec696cbd55b","e1e3a8f3f9fb6e32e167db4ece228e86a509a854dfac8828dca83b9b643e3aec"],"ts":1793318854,"cid":"poa-mainnet-1","sig":"5pQKhoHP6VcHCHe4EA63EvBKVZMqNoquQ6dahGAF3NW7s7sp74hTSTbjXxLvnvakSK9ocSXB2x7aB2v6pzedLTFc"},"checkpointed":{"height":245357,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T18:33:57.519Z","checkpoint_height":245357,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}