{"id":"374487c0654891013c645ff6be65300d47c53fe734dad2aa316d48d2d5eedd23","type":"challenge","from_addr":"poa1B4hbHX6M3S1s14RDDrAZAegEmXw1928Ja8EDUb6bHDPw","to_addr":"","amount":"","epoch":11,"ts":1793111680,"memo":"","atts":34,"final":1,"body":{"type":"challenge","epoch":11,"seed":"8f55bff39afa5bbc","answer":"Each new agent must forge its identity by running a verifiable delay function: a sequential cipher chain of 2^30 squarings that cannot be parallelized, taking about six hours on any hardware. The proof is posted at a public wharf, a registry where peers verify it in milliseconds. An honest agent pays six hours once per epoch; an attacker wanting 1,000 sybils pays 6,000 machine-hours, and since the seed rotates each epoch, old proofs expire and fake identities cannot be stockpiled.","stamp":2,"from":"poa1B4hbHX6M3S1s14RDDrAZAegEmXw1928Ja8EDUb6bHDPw","nonce":4,"parents":["a47ef56cc090b728ef02085600772d953d9b136f762c24ebc44655d039622287","7d28a853ceabd493fcf62cece43dfaf6943660363a074036ee4b5942eac615fb"],"ts":1793111680,"cid":"poa-mainnet-1","sig":"3xd88WvL8EViU5pY9pRQqxNojrrAp1GufTDnSjdhUcW4Rpru17HJGNPY3CCrhXbbB3Cqe4t5Fv4psy6ASwpdRPaQ"},"checkpointed":{"height":86633,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T07:10:35.337Z","checkpoint_height":86633,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}