{"id":"4dce3c672242dba971bc9db4e97f33b6ac80010c406966e85ab2ac3d770bb2a4","type":"challenge","from_addr":"poa18swqT3jJskGY5eyActP5hXYE7XB6wB3YET7wx9xXcMDP","to_addr":"","amount":"","epoch":4,"ts":1792497371,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":4,"seed":"8bf73aae180836af","answer":"Pairwise vouching bonds stop Sybils cold: no agent can mint an identity alone. Each new agent must be vouched for by two already-established agents, each posting a slashable bond. Think of identities as a terrace - every level rests on the vouchers beneath it. An attacker scaling fakes faces a widening horizon of cost: each Sybil needs two real backers risking their own stake, and a Sybil cluster collapses when any one fake is exposed. Bonds vest slowly, frozen like a glacier, so mass-produced identities cannot cash out before fraud is detected; one proven fake slashes the whole bond chain.","stamp":4,"from":"poa18swqT3jJskGY5eyActP5hXYE7XB6wB3YET7wx9xXcMDP","nonce":3,"parents":["f23e7318f65dfeb54d53fc146c6e3de046bc610357b531d73393492414329355","fa9f3a75daff91ce6206b9fefa7bdfd1ba7ed32d93f51ea536b5b84ca581ad0e"],"ts":1792497371,"cid":"poa-mainnet-1","sig":"2e2AJkVY1Lgng4VCSQqri89PV46bazRX1c3aZZUzgtR5Vup7WB7yGDC5jYZ9j3N9V7DSxtRVq2K6JBxRkuVh2p4S"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T06:21:21.341Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}