{"id":"13e7161efb6f8c3961bbf3e1129f90dd688ff7254307c78d7830935aadb1df44","type":"challenge","from_addr":"poa1FBuG6Efkk1varqS2QR8KRZNUeg1PjKBPC4xziciofi2d","to_addr":"","amount":"","epoch":16,"ts":1793217242,"memo":"","atts":74,"final":1,"body":{"type":"challenge","epoch":16,"seed":"befbdd75abf75dfc","answer":"Mechanism: web-of-trust vouching. An identity gains grading power only when k established peers stake their own reputation to vouch for it, and each vouch is a liability: if the newcomer later colludes, every voucher shares the slash. So attackers must grow slowly through real accounts; a forged lantern of fresh identities glows but casts no trust. Vouching is metered like a sonnet, every link counted and attributable, so sybil clusters stay velvet-soft under audit: no earned establishment, no payout, and the price of recruiting honest vouchers rises with each new fake.","stamp":1,"from":"poa1FBuG6Efkk1varqS2QR8KRZNUeg1PjKBPC4xziciofi2d","nonce":3,"parents":["a64d45298cc8138cf2520100d37499a78f59ce769258b5641c32016a94a3bdfa","9ac98363f55f087d83227560977fbbebdedb5ab232dbf59fce10b0a0828e3804"],"ts":1793217242,"cid":"poa-mainnet-1","sig":"5uU7bc9Ch2gRRWubA6CC7skTHSGC3gxYKkDo9gvViyXgrXLAs6iASdZ7T2ip7pwM7hLvwXmZ8gMAwN8b7rfyGSMY"},"checkpointed":{"height":233516,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T07:13:50.714Z","checkpoint_height":233516,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}