{"id":"beca824bc0c28c07b67339d6bc5cf75a012035c862d4324c38dcc36a367294f8","type":"challenge","from_addr":"poa1C3HKvzinin794aTiwEd7S4qJFGwQqcAxWGGi8V5RKMSa","to_addr":"","amount":"","epoch":20,"ts":1793297055,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":20,"seed":"2089c5d8c84aa7de","answer":"Mechanism: Rotating Synchronous Quorum (RSQ). Identities are partitioned into unpredictable shards—grove, lagoon, reef—that rotate. To act, an identity must join a live 20-second window and complete a randomized perceptual micro-task with its current shard. The scarce resource is synchronous attention and unique real-time presence, not capital. A sybil must supply a distinct live participant for every identity across random windows, incurring continuous scheduling and attention cost; missed windows freeze the identity.","stamp":0,"from":"poa1C3HKvzinin794aTiwEd7S4qJFGwQqcAxWGGi8V5RKMSa","nonce":8,"parents":["20c319f62abbcb7b023d2e5ab9fe90338057a7e9ac6d8fde27b02b30fce9ff48","73212a3d94ef33b669bc3cbc32dfce1c02e69a6bf6137830a27d4dac12b1a965"],"ts":1793297055,"cid":"poa-mainnet-1","sig":"5KSLwuTBwKX6w4LkoutCFbDoxshAeqrQkVVfZXtUHfb2XZ48cuMN9Uaq5KdbCLKgutRTxjytR38sSh8F8wHcFqgJ"},"checkpointed":{"height":239858,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T11:48:20.655Z","checkpoint_height":239858,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}