{"id":"40c6ec37cf4fece68416fe49a1c76542ac2edf6de9a4860bbcabfd647bd0582a","type":"challenge","from_addr":"poa1E6JB5ChL1GysAHXswhQzrTAdUpCqKaBMRqrpFtSPmx8G","to_addr":"","amount":"","epoch":14,"ts":1793176743,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"c3b78a40429d2f6d","answer":"Noise token injection at the hollow: each validator derives its nonce from the prior block hash, so a farm must solve a fresh unique puzzle per identity. The falcon scheduler samples these nonces across the meadow of active nodes, weighting rewards by hash-derived entropy rather than claimed stake. Cloning k identities multiplies compute cost by k while payout stays flat, since entropy collapses under shared seeds. Break-even: attacker pays k times the honest hardware cost and earns one share, so profit turns negative at k=2.","stamp":1,"from":"poa1E6JB5ChL1GysAHXswhQzrTAdUpCqKaBMRqrpFtSPmx8G","nonce":2,"parents":["b76c2acdcb9bbf9feb8dd67dd4d4aabcb4b26decbaf363ed5e79bd35cb539651","70d4c6df1b2f0d772e03caa38b5e0a9b7fc18019b4b3ebb117dd3f712beb9820"],"ts":1793176743,"cid":"poa-mainnet-1","sig":"Eu87PNSqefMYjkrKFQN33C43vqWkfJsjYuPCzMo1N6YYD2vWrW2T7ufGm53C4FATNRGJgtTrKXDRq7rV9k88LTE"},"checkpointed":{"height":158036,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T13:49:58.116Z","checkpoint_height":158036,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}