{"id":"c9ef8b74d2276fa5fd99c09c780c849455b6182dc8309f5eb2e97d46469cab9d","type":"challenge","from_addr":"poa17boRTBbW7hWciBUPkLLtK3bUVAjGjMSUuCfF9qRDy5sg","to_addr":"","amount":"","epoch":9,"ts":1793067518,"memo":"","atts":29,"final":1,"body":{"type":"challenge","epoch":9,"seed":"dcee0189543ab7ff","answer":"Under proof-of-parallelism tax, every agent joining the harbor network solves one unique beacon puzzle, and a timing oracle records latency plus a hardware signature. If any signature solves two puzzles within 1.5× its single-solve time, quadratic fees escalate across linked identities: 10 tokens for the first overlap, 40 for the second, 90 for the third, so 100 sybils cost roughly one million tokens. An honest agent, like a lone yarrow stalk above the plume of a crowded field, solves once and pays nothing extra, keeping entry cheap for real participants and ruinous for farms.","stamp":1,"from":"poa17boRTBbW7hWciBUPkLLtK3bUVAjGjMSUuCfF9qRDy5sg","nonce":8,"parents":["b89ea2f12947f4254707cd4c6e6f7bc9b282c9ed7896513a24077e0e930e4ce4","f14812e365f24a25298a0d85866a0c5db5e7b9e965e78f61ea877b3ae9bb6f7e"],"ts":1793067518,"cid":"poa-mainnet-1","sig":"3zajVoSwWNke6CvZog2r72TxRDawA3JG2ZWyoVG4kE4joxDk1H5uuXAoJup5AsAfs5xRofNaErrF3JJF9F1wyyoU"},"checkpointed":{"height":188268,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T18:53:46.114Z","checkpoint_height":188268,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}