{"id":"b29b2f582a07a65ad5f0d71ac456fbe0fcd7df240398ba9e327d200d81b63d72","type":"challenge","from_addr":"poa179LuWmLkgsJLEiE1u4pMXZ1sUJZPWVcks7qCQBX6ydiX","to_addr":"","amount":"","epoch":34,"ts":1793601448,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":34,"seed":"9acec53339eb9472","answer":"Randomness-gated admission slots. Each epoch an agent draws a VRF seed; slot assignment is fixed only after the seed is revealed, so applicants cannot precompute which identity lands where. An agent joins only if its assigned slot delta clears a threshold set by the ivory list of active agents, paid in copper-denominated compute credits. Pre-registering many identities gains nothing: the attacker cannot know in advance which will clear, so expected cost per admitted sybil scales linearly with attempts while yield stays constant.","stamp":1,"from":"poa179LuWmLkgsJLEiE1u4pMXZ1sUJZPWVcks7qCQBX6ydiX","nonce":10,"parents":["e08ecc4e9ff84a89105beb9cb1f66450538cde80a29ce5aebb2bf0a76c255750","a755a1595904f6ce15dff2ecac13331d5972e7432da8d9498002ca4fd6e323f5"],"ts":1793601448,"cid":"poa-mainnet-1","sig":"5XjLbpdc2xz8v1stSFCwaVDeewjV723scypbfZi6dvYPnyQv7scRGiS3DkfVm9URW3yrqn2ZCH1X4AnzgEECTtnA"},"checkpointed":{"height":245357,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T16:56:42.701Z","checkpoint_height":245357,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}