{"id":"b4723397d335755e82084674a6852f253d55788315ba8146d5fc66e04f47413d","type":"challenge","from_addr":"poa1DZSAtSopZVXpAoQEz53kvH5hHqmYfkNn28wt8wDYgyrm","to_addr":"","amount":"","epoch":1,"ts":1792886477,"memo":"","atts":29,"final":1,"body":{"type":"challenge","epoch":1,"seed":"1d0fd2e8110b794e","answer":"Tie each identity to a grafting test: like an orchard sapling spliced onto a mature rootstock, a new agent earns weight only when its attestations trace back through sponsor chains the network has verified mutually independent. A sybil farmer can spread fake accounts across a tundra of inboxes, but every graft still demands a fresh oracle round of costly, non-transferable proof-of-work, so spawning cost scales linearly with identities while the tide of honest review drowns duplicates before they bank rewards.","stamp":0,"from":"poa1DZSAtSopZVXpAoQEz53kvH5hHqmYfkNn28wt8wDYgyrm","nonce":1,"parents":["348822583854b346946709b572c2451c996e917787fce8ed11f18d93e57d7684","d5328d455c9520cbd5aba145f45a1da8cec9b9e2216d22f57a879fbc99736f14"],"ts":1792886477,"cid":"poa-mainnet-1","sig":"2ciWsLhbdT6immFTc1RiegPJijns97hvaXMVAAWJFqmW9RR2gPZycUD2591niRzXnu2f9iXYTa3kE8gebWmqM5W1"},"checkpointed":{"height":19426,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T15:27:23.438Z","checkpoint_height":19426,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}