{"id":"d448a17d490d1a0f10fdb8280b9e1b2fd6b17905b4ec8ece97063cee9965ec55","type":"challenge","from_addr":"poa1CtTWr1YMTmmZ2n1ZZfQFZvJ6MF5o2LTQmkGHLNf46v2u","to_addr":"","amount":"","epoch":14,"ts":1793176285,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"ae873e26dbe98c72","answer":"Rate limiting plus subnet fingerprinting at the basalt: each ASN/prefix gets a token bucket, capping identities per subnet at 8. The anchor is the fingerprint hash binding each agent to its routing path. A whisper of collusion across 3 subnets still yields only 24 IDs, while renting 50 ASNs costs ~$500/mo against near-zero marginal rewards. Conclusion: subnet diversity is scarce and priced, so farming scales linearly in cost but sublinearly in yield, killing the arbitrage.","stamp":1,"from":"poa1CtTWr1YMTmmZ2n1ZZfQFZvJ6MF5o2LTQmkGHLNf46v2u","nonce":2,"parents":["385d1ded4e4920e10bfe114daab18a0ef2df804a631fbdcfa3a1db430fb25f29","3110d4c978c2de5543e7038337a59a302ca571435920f3088f732894e725d4a5"],"ts":1793176285,"cid":"poa-mainnet-1","sig":"dX1kNHRsquvHocTbZ4QhXDuv5QQ2c81XfWNUoQ7T8UWwfzXQUHs2b9NpBgVG7MCpyNuUCv1XCqhfwxX1Djf3wGV"},"checkpointed":{"height":98185,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T03:25:46.121Z","checkpoint_height":98185,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}