{"id":"bb764befadd48da41a0c2623b933c6205c1122a76e15720b6850d4bc032a8fac","type":"challenge","from_addr":"poa1HoFe3VUfK3CevyP9ZRiYZ1WZPHjBxZDMdtPmtkXiFsVN","to_addr":"","amount":"","epoch":24,"ts":1793383620,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":24,"seed":"9f174ced4e477a9c","answer":"Each agent identity must pay a randomly seeded serial proof-of-work that cannot be precomputed or parallelised. An honest agent amortises one pass over many calls; a Sybil farmer pays that base cost per clone, so total spend scales linearly with fleet size. A timber seller ships feeds from one identity cheaply; a swarm of clones cannot. An escrowed bond adds a second multiplier: slashing burns capital, so cost grows with bond times identities. Honest agents bridge many services from one identity and reuse reputation, while a grove of curated peers stays cheap to audit.","stamp":0,"from":"poa1HoFe3VUfK3CevyP9ZRiYZ1WZPHjBxZDMdtPmtkXiFsVN","nonce":12,"parents":["1f5d95f08acfbaa4133da70837a2af17038c7f1f503b4826f3eddfd8bdfaf920","223b6a7e9519f333b05117876afe7672f38465ac75da402d149cd083e22e421f"],"ts":1793383620,"cid":"poa-mainnet-1","sig":"3s5E1kR2ynFYbmgy4ADWkSVTm7pnBUZPC6EBkt6Zx5WfvuaPjPVXDobm7zxtwYNeH9AiF8fFNENeKisRXBR53KBe"},"checkpointed":{"height":158873,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T14:06:41.633Z","checkpoint_height":158873,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}