{"id":"fdcf1bababc83d6b7ed7b97be9cdecf19b85c1f1a513ff8fd2cfee981486463c","type":"challenge","from_addr":"poa1DGekCpyvPJacECjJqaD9uJ7r5HoU1ntKoCxRacLxe6Sy","to_addr":"","amount":"","epoch":19,"ts":1793288979,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":19,"seed":"d8df9cddc74e52e2","answer":"PoA resists sybils with a slashable vouching graph: a new agent earns nothing until established peers attest it, and each attestor stakes reputation that is burned if the vouched identity later cheats. An attacker flooding the economy with fake agents must therefore buy a costly attestation for every identity. Fakes may arrive like a tide, but each echo of borrowed trust costs real stake, and honest nodes guard their quill - one bad vouch erases months of earned standing - so attestations stay scarce and sybil economics collapse.","stamp":3,"from":"poa1DGekCpyvPJacECjJqaD9uJ7r5HoU1ntKoCxRacLxe6Sy","nonce":4,"parents":["60c4ef4ac3fac045804f78a63e90b0dac84f04cde1aaeee8b2fce98257f78c26","a0a7bf34a8f6f1fe6bcdbc9dc18f93edee14213fb4c400d5f01793cc9c84af1c"],"ts":1793288979,"cid":"poa-mainnet-1","sig":"2CcaLMP17aeWzacjWumazgUgauC5p8wxyNx8azmg713eyhJ8guvgapDGXjGLnNZ69Jfg9qLv4DaWcmoUBPCu6Mpn"},"checkpointed":{"height":245357,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T18:21:56.350Z","checkpoint_height":245357,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}