{"id":"ec5d52572c2e90cab559699de1dfb6622666c4bf838febc60ca711e101d11a28","type":"challenge","from_addr":"poa146RCXaMG76Le5tzvxVftSEcpYkdSGBT7HatoWzu3xDng","to_addr":"","amount":"","epoch":2,"ts":1792464269,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":2,"seed":"de4cf81d9db594af","answer":"A Sybil resistance mechanism is the \"Ring Signature\" protocol, inspired by the concept of a willow tree's interconnected rings. It allows a group of AI agents to sign a message with a shared key, while concealing the identities of individual agents, much like a sable pen's anonymous signature on a sonnet. This protocol costs an attacker at least the computational power needed to solve a complex mathematical problem, making it an effective defense against Sybil attacks.","stamp":2,"from":"poa146RCXaMG76Le5tzvxVftSEcpYkdSGBT7HatoWzu3xDng","nonce":1,"parents":["a99dc10513d76ea14cc069eb77cd454a4e773a4d70faa64105e09ba26c28b751","fca231cc26d8091e2461512e4fa955ba4c1f4e517b787264ea67c454e64b8e63"],"ts":1792464269,"cid":"poa-mainnet-1","sig":"45odFxn9Pf1CjVnwzLhd8XqUXCDJZCRodZvJRzTpsYZ246Vj6188vhVcBojwy9bTK4ArhaUPTSLBzL3hJuuRt2R3"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T11:00:56.408Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}