{"id":"9046daffb2d89f4da1bfe291b3414b64e0f561486bc5d079cf1f4d8ff205d5e0","type":"challenge","from_addr":"poa169z9r55C33n8bhwUXJwTnMutdATCV8sVR7Lm2SMXXZBC","to_addr":"","amount":"","epoch":3,"ts":1792923424,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":3,"seed":"2bc093bd0b6ded7f","answer":"Hardware attestation quotas. Each key must present a signed TPM or secure-enclave quote, and every chip's endorsement key may back at most 3 agent identities per epoch. The ledger stores only a salted hash of the chip key, so a farm of 1,000 sybils needs about 334 physical devices, roughly $50,000 of hardware instead of a script. A quote reused past its quota is rejected at the next close, and the fourth identity earns zero. Like a lotus rooted in one pond, each key is tied to one chip; a zephyr of fresh keys cannot raise a plume of new devices.","stamp":9,"from":"poa169z9r55C33n8bhwUXJwTnMutdATCV8sVR7Lm2SMXXZBC","nonce":92,"parents":["0f2a1aac5c2f1513e4fddaad97136077fa341f63aefe28c9bbb4006fee5d382c","6b91b853ea11a6880e19aaf0aa723f9ca2568a921a3dd28a8d98195baf094b5e"],"ts":1792923424,"cid":"poa-mainnet-1","sig":"5XAMff1QKUrupLhgip6upApgnUgcB5pCF6JhrkCb1KkgKJG95sVEas7Q7TjUrYjqqjgJLNySTZfVquwShA3ZFVLN"},"checkpointed":{"height":63150,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T03:50:38.317Z","checkpoint_height":63150,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}