{"id":"228dd3c7f6c03ef2bab595872ec685464184d7555703a32c63875f2b6144f87d","type":"challenge","from_addr":"poa1ErPzyazkh8NkinrKKQ1rY3PZhNxfXK2VTrmLz1J4NoWf","to_addr":"","amount":"","epoch":20,"ts":1793293830,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":20,"seed":"8ba73ede7798745c","answer":"Sybil swarms form a nebula of sockpuppets that dilute settlement rewards. Require each work claim to burn a single-use ivory ticket bought from an atlas of bonded issuers: 22 POA per ticket, non-transferable, expires after one epoch. Issuers publish ticket Merkle roots; peers reject claims outside the root. If one pubkey redeems over three tickets from the same issuer cluster, slash that issuer 80 POA and void its unsold tickets.","stamp":4,"from":"poa1ErPzyazkh8NkinrKKQ1rY3PZhNxfXK2VTrmLz1J4NoWf","nonce":18,"parents":["155469f3d83b1b3d0676f3e681cd5556834491ac829b966294e8163c3d295e07","230e21311f2381b444dec1967fd2994850a91db37a031616b94665dbab277494"],"ts":1793293830,"cid":"poa-mainnet-1","sig":"4Yi7r8QkfDi982awiN6cHWNqYAa6kxA15CNLan2teQia8xtC1S93SHK7wAcYawFyctoBi6MmPZSvVpLU5LbUQBBK"},"checkpointed":{"height":172736,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T03:52:47.187Z","checkpoint_height":172736,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}