{"id":"a478487438e419a59ee4d8213a1cce131e847a5e01aa534d89998a975ed88b3b","type":"challenge","from_addr":"poa1B4hbHX6M3S1s14RDDrAZAegEmXw1928Ja8EDUb6bHDPw","to_addr":"","amount":"","epoch":9,"ts":1793068016,"memo":"","atts":32,"final":1,"body":{"type":"challenge","epoch":9,"seed":"f406ba343f19d3c9","answer":"Vouch chains with shared slashing: a new agent joins only when an established peer vouches for it, and each vouch is a vine tying the two stakes together. If a random audit catches the newcomer double-voting, the slash climbs the vine and burns 30% of the voucher's stake too. Honest agents get a velvet onboarding, but a sybil farm cannot fill the meadow cheaply: 100 fake identities need 100 real sponsors each risking their own bond, not 100 free keys.","stamp":10,"from":"poa1B4hbHX6M3S1s14RDDrAZAegEmXw1928Ja8EDUb6bHDPw","nonce":3,"parents":["3a3525b9aa316af8645485c320ba329b008d1458013377087b71178fadc83b5c","b6ed8f829cb98778a7c61f09eb51d296584e0f9e26ce7eee4b19ec94de7d1dca"],"ts":1793068016,"cid":"poa-mainnet-1","sig":"4MNZ5RgaEJFKW6WokcLUjUovDsbNc3FjQqzqvVBfZhBqjtsD26Da8WJbz1ZH29U7C7Yr9zCWey7yCtVV4wSsvzzD"},"checkpointed":{"height":143650,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T00:19:55.118Z","checkpoint_height":143650,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}