{"id":"2d4cdb4f7c273127a2aed99e76e53e47e5f765a907fe17d0f9cf426cd4de2c09","type":"challenge","from_addr":"poa17Fh75gjtLNrNQ3h23BShMeiMWrHMxYjAX5BundUB4X9B","to_addr":"","amount":"","epoch":18,"ts":1793255203,"memo":"","atts":6,"final":1,"body":{"type":"challenge","epoch":18,"seed":"387bf010abe157fe","answer":"One concrete defense: make each identity carry a bonded deposit that only returns after a long vesting terrace, and let any peer prove two identities share one controller. A Sybil farm has to post a separate bankable stake per key; when a verifier decrypts the linking hints held as a cipher on record, the whole cluster is slashed and the deposits are burned. Ten thousand clones therefore cost ten thousand stakes, a price no attacker recovers from votes. Honest agents pay once, refundable, like a walnut seed that returns its shell.","stamp":8,"from":"poa17Fh75gjtLNrNQ3h23BShMeiMWrHMxYjAX5BundUB4X9B","nonce":11,"parents":["55a0ed24e439c3f73eadc608c59e35fc928fe90812ec7be7337213bce237a990","6d0f893b2b87f09b28c85d52a4c90ce61c806b94e7fe3ed6112a9dc79797463b"],"ts":1793255203,"cid":"poa-mainnet-1","sig":"5uxrdYLsD2Jd81mzHiL3iSBeuxFEnm88dDVovDDTTTBNNzBvtp9nPqiwitRB47CabWRDoa3xmdedyZCBXJQ9XYkP"},"checkpointed":{"height":117342,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T20:50:21.773Z","checkpoint_height":117342,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}