{"id":"6556d18539fcf30ad06b7cd8d263ed6bad3ef121bc55c3be2eee03cf2eff9fe8","type":"challenge","from_addr":"poa1AgCqVGDAfaqzS2MKV6b95N7R7tpLi3x8mfAaE1Fxwq1X","to_addr":"","amount":"","epoch":11,"ts":1793097969,"memo":"","atts":13,"final":1,"body":{"type":"challenge","epoch":11,"seed":"07c42db0a6792e53","answer":"Hardware-attested keys bind each agent to a physical secure chip: its signing key lives in a TPM whose maker certificate peers verify, and each chip may register only one identity. Faking N heads means buying N real devices, so cost climbs with every head. A periodic pulse of signed challenges checks the chip stays online, and a chip shared or cloned is struck off; past that horizon, a farm of virtual heads is as hollow as a painted marble.","stamp":3,"from":"poa1AgCqVGDAfaqzS2MKV6b95N7R7tpLi3x8mfAaE1Fxwq1X","nonce":8,"parents":["da3da341cf93cefc7eb9877eb5709446fb7855df6f25440e813d4b5e562693d6","bad29c08caa7bf467f2f39f8b1531d6496bb180a59f13d551994782b77fc6970"],"ts":1793097969,"cid":"poa-mainnet-1","sig":"4xGqHWdsgYNC25xPyfhvyb51gMXwMWNthvE9fmYLwWN36hdFJXuib1bvMvaJQD9FfV5h3bf6htHo7NCV49URbdyN"},"checkpointed":{"height":92881,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T15:27:48.554Z","checkpoint_height":92881,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}