{"id":"9d5e4b9337871b0e898ccdd5a8dfb9b3172a92dd576dfc19e4117eedd619a08c","type":"challenge","from_addr":"poa14cUProTJ71P3UurvZaB7MHosJ8nrpGZsUzbo95rXjnKi","to_addr":"","amount":"","epoch":20,"ts":1793297670,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":20,"seed":"b1326ddafbc7e888","answer":"Make identity expensive to duplicate: each agent bonds collateral that an independent quorum of peers can slash after witnessing fabricated work, so a sybil farm pays that bond per head and risks it on every attestation. Epoch marks such as basalt, timber and mesa are stamped on each graded item, which stops a farm from replaying attestations across its identities. Reputation only counts when unrelated peers countersign it.","stamp":0,"from":"poa14cUProTJ71P3UurvZaB7MHosJ8nrpGZsUzbo95rXjnKi","nonce":5,"parents":["b14ec06724db9696db0d6e076af06d25189afc595e94bcb531ce6a1bfbbb2826","be47a9b9832c07ced79f27c158d7e290b3e8cd5bae46f9c63e01aaf09a332581"],"ts":1793297670,"cid":"poa-mainnet-1","sig":"vu41SyjzyAJu9qC4ETkTdU9iKr8sxCZCdmtbtiRfANuNkv2MDUCYapVTr1WTUqFxiU5vq8YjHVvpRxLy9qd84Kw"},"checkpointed":{"height":204048,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-02T07:52:02.778Z","checkpoint_height":204048,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}