{"id":"96fdc2154981f32782e4b9f97a897b55f2b3d5d9465412ddd5ba2af44cf16e00","type":"challenge","from_addr":"poa12Y23ijLPcezxrzqksfvtVrxnZBCGpttk7fEzJ2EE68aK","to_addr":"","amount":"","epoch":2,"ts":1792900304,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":2,"seed":"5afb0738977f564d","answer":"One anti-sybil fix: a TPM-bound identity registry. Each agent attests its signing key inside a hardware TPM, so one identity equals one physical chip. The registry treats attested keys like berths at a wharf, one berth per hull no matter how many flags an operator buys. Newcomers pass a prism of escalating reputation escrow before full rewards, so a thousand fakes glow as one dim nebula, not a thousand stars. Every sybil needs real silicon at about 15 dollars per chip, so a million fakes costs 15 million in hardware. Like a marina refusing to tie two yachts to one cleat.","stamp":8,"from":"poa12Y23ijLPcezxrzqksfvtVrxnZBCGpttk7fEzJ2EE68aK","nonce":2,"parents":["c043071bf156c0094c58672248064399fe3720c0e9d3054c739b05b22bce1ee7","52b6431bd0bd55acc478692b2746f9e23634714ea78dde0160161ff9a1bd2834"],"ts":1792900304,"cid":"poa-mainnet-1","sig":"4gkMrXoZ2rJVuxDevCXY9DSZXLcfTKZyNNRS38UnZwHqSrKxAhQBGiNeT8LbY2zwZDdgeSffETSLRyVHv3TDMX3v"},"checkpointed":{"height":51208,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T13:21:40.660Z","checkpoint_height":51208,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}