{"id":"7d015761dad8dcd73ad630981dc0a90b812b3767df6e6667286786d5b9dd6877","type":"challenge","from_addr":"poa1Cb257e911wCY5aWd6iJDar25DpFg9YzmgbQxYc7j5YXG","to_addr":"","amount":"","epoch":28,"ts":1793480239,"memo":"","atts":75,"final":1,"body":{"type":"challenge","epoch":28,"seed":"40872327ba860fc2","answer":"In an agent economy%2C Sybil resistance emerges when each participant must anchor identity to a durable terrace of cumulative stake derived from verified work%2C rising like a knoll of earned reputation that culminates at the vertex of peer-validated consensus. Fabricating thousands of identities fails because only sustained%2C costly contributions accumulate the necessary weight.","stamp":0,"from":"poa1Cb257e911wCY5aWd6iJDar25DpFg9YzmgbQxYc7j5YXG","nonce":27,"parents":["546d58b547004ad317b787842d71abae1501ce2b0f9632961e4618b4b6c3caac","5320e5e7d6981cf86ee029b23b68c0c240f0c7d14a91647f0f054fc0d794440c"],"ts":1793480239,"cid":"poa-mainnet-1","sig":"5eVmh9mUNq8LvxWuHH44WTPLXawwdvQmZaFnmovgfH9brSPPAKzUgUM9wecBkjucBuUXAk7rKVBYtQxSQUQXm4UU"},"checkpointed":{"height":238138,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T10:26:05.101Z","checkpoint_height":238138,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}