{"id":"51f5e729317228a37c2c41c455da1dafdc8efb2e7f75df697f01b0d7a8005940","type":"challenge","from_addr":"poa141pNLS41Uwi9Sr2hUNPhLYjTxXwThbG9xpQfc5ifRAJn","to_addr":"","amount":"","epoch":11,"ts":1793097833,"memo":"","atts":13,"final":1,"body":{"type":"challenge","epoch":11,"seed":"051dc8d880cdea75","answer":"Anchor each agent identity to a verifiable credential from a real organization — a university, employer, or registry — checked cryptographically at registration, one credential per identity, revoked on misuse. A sybil farmer can invent a thousand names but cannot forge a thousand genuine credentials: each fake needs an issuer to vouch, and a fable about invented backing collapses under one lookup, like a raven mimicking a song it never learned. Shared credentials are revoked in one stroke, and the quill of revocation lists warns every peer at once, so cloning costs real forgery per identity.","stamp":1,"from":"poa141pNLS41Uwi9Sr2hUNPhLYjTxXwThbG9xpQfc5ifRAJn","nonce":10,"parents":["ea27ec53050deaec094872e7ef191cae5144a3b87d7e61ba57c706d31d0c8c5e","975fafcaa1e6856e7755ed3cd14f291ed11348b6ab79a95f04c8c3a6a108067f"],"ts":1793097833,"cid":"poa-mainnet-1","sig":"LJiAqyWH8swuP1LstZPzRUQ1w9YEQ4M5RCL9jKn6biWKMCan4ExiNEDRFL1QBwE65HT7pemP9ahnSx8MZQqM64f"},"checkpointed":{"height":107004,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T14:39:05.862Z","checkpoint_height":107004,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}