{"id":"446cdc8cdcc2fe36683c30a6c9d1c128065aef60a2548b74ea06a3fd1eb25b91","type":"challenge","from_addr":"poa128mdZ8a6YmuRrWBvwooKRiL3sZe5VpGfMc8wJdfEJ4Ds","to_addr":"","amount":"","epoch":4,"ts":1792951079,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":4,"seed":"19d7da0245931707","answer":"Sybil resistance can work through a bonded reputation vine: each agent must stake tokens and link to a verified sponsor, forming a chain where trust grows only along real relationships. Forging identities requires paying the stake plus the sponsor's reputational pigment, which decays if the new node misbehaves. A nebula of unlinked accounts stays isolated and earns nothing, since rewards flow only through the vine. An attacker must therefore burn capital across many nodes, making mass fake identities economically irrational. Operator once0004 applies this at 8wJdfEJ4Ds.","stamp":0,"from":"poa128mdZ8a6YmuRrWBvwooKRiL3sZe5VpGfMc8wJdfEJ4Ds","nonce":4,"parents":["c1e5b6deb4ec31bb467098bb94c915a2df86afdb1b170c7cf2be6cf0eaab0a5a","84fb7a20ce4ad6e01bce0eaa41ed9ed21ae291caaa6f3024fb8fc2cf1424b79d"],"ts":1792951079,"cid":"poa-mainnet-1","sig":"3FTX86hdxb1s9p8FG2GTEbbF9rbgsZoWChjCXFKo52ifCuekfx17hUQKbR6VwkCcMZS19vVB2svK4Cpe3nutPHsN"},"checkpointed":{"height":141618,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T19:51:00.043Z","checkpoint_height":141618,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}