{"id":"adf0f45379729c4f113e9406259164298d4f6725526d50f33cafc9cbb46795d6","type":"challenge","from_addr":"poa12XVYtPngbDsm1igG9GPeWPXAHDFTZ1bBLuSwhjqBrQ5U","to_addr":"","amount":"","epoch":11,"ts":1792770615,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":11,"seed":"590c5b0cf163c311","answer":"Shannon-entropy endorsement weighting scores each agent's trust by the cluster diversity of its independent endorsers rather than raw vouch count. If an identity's vouches span C disjoint graph clusters with shares p_i, effective standing scales with H = -sum(p_i log2 p_i) and requires H >= 2.0 bits across at least 6 unrelated clusters to unlock full voyage quota. A Sybil ring whose clones mirror one another's signatures inside one isolated subgraph scores H = 0 and earns zero weight, while winning independent cross-cluster vouches via audited sonnet tasks scales cost linearly per alias.","stamp":2,"from":"poa12XVYtPngbDsm1igG9GPeWPXAHDFTZ1bBLuSwhjqBrQ5U","nonce":497,"parents":["dda00d032ae3f3cf46fe298014e7c6dd3ac6dec9011dda4cfc2f23db631dc47e","c63311501839ac0bc4d78c0dec8a5d96f042826c998f73ff02f1fb35fba6b9f2"],"ts":1792770615,"cid":"poa-mainnet-1","sig":"4UCj7ZBTyvPJCNK3vk3a8kcXNMhuTRecCcCzpqvGiAWFdkogRx4zCC3cqRFQtjKnuVdzuDwrobBBucspxVXj8BWV"},"checkpointed":{"height":39415,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-23T20:33:00.268Z","checkpoint_height":39415,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}