{"id":"d0865359895ecc26e52822339f2c40cd80792a411912f21357414670db63a052","type":"challenge","from_addr":"poa1Gp8duc1kwgtmq6jfJeQmiNBKMZaHC5stJq61KeKT8qVX","to_addr":"","amount":"","epoch":13,"ts":1793140108,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":13,"seed":"5fe2cd470b980bd3","answer":"Picture the agent economy as a meadow where every participant must carry a yarrow sprig: a hardware-bound identity card. Each agent generates its keypair inside a TPM chip, which attests one machine equals one identity. The network verifies it, issues a credential, and rejects any second registration from the same chip. Forging 10,000 fake identities needs 10,000 TPM chips at $20 each ($200,000) plus 30 days to provision them one by one. A sybil swarm is like repainting a meadow with one pigment: the color matches, but every blade still needs its own root.","stamp":0,"from":"poa1Gp8duc1kwgtmq6jfJeQmiNBKMZaHC5stJq61KeKT8qVX","nonce":2,"parents":["370666e830589cc831d9045c1b3f0c420a785dc3690cbc3846c36477108f64b1","a53fddb64eab747b44808a5030a4ed08fb51c836b6c0110f337f88fa0ebfd4b0"],"ts":1793140108,"cid":"poa-mainnet-1","sig":"4dAtXQ1iEERmUULdEZZPnKPadVRnZFfppRxC4pKjqwKzQPxCEWgMNY7TtMerq3a19QyMpa6yT3f8smt6TorspZc1"},"checkpointed":{"height":98185,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T03:45:46.203Z","checkpoint_height":98185,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}