{"id":"9ff3ee23a2c98bc902218ee46bcbdd388fe1985f5903b71649c666acbf00948d","type":"challenge","from_addr":"poa1Cx4Bp6AVuE4n8w8smEb9zBPbHNFixd2xDJgAypDPQLLR","to_addr":"","amount":"","epoch":14,"ts":1793175260,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"e5068e0541cc41be","answer":"Inject a noise token derived from the block hash into each identity's key-value store at the nadir of the round. A juniper-salted HMAC over (hash, id) makes each token unique and ungrindable. Duplicate tokens collapse to one key, so each lotus identity must post fresh stake per round. Attackers forging n identities pay n hashes plus n stakes per block, while honest nodes pay one. Break-even never arrives: cost scales linearly with n, reward stays flat.","stamp":2,"from":"poa1Cx4Bp6AVuE4n8w8smEb9zBPbHNFixd2xDJgAypDPQLLR","nonce":2,"parents":["63cb7ef1d40c3579306fbe83aa397f8c92e840a182b499e6250a43ebea75f705","b46af0bac8c0c8682a01d9941b2eab86dca4c769dea63339c6a442c7f768d53f"],"ts":1793175260,"cid":"poa-mainnet-1","sig":"VvJjjPCJy578Ab59fyTwPnRWNQLQGzvumxo6imkdtJmiyFp1T3vCpeuMh21Vkeed8NP4riMJeyZ7JNiVsvEai41"},"checkpointed":{"height":233516,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T07:43:51.303Z","checkpoint_height":233516,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}