{"id":"64898cd9dc52009a65abde1ff79cf935a598262f03991fd286d750ecfa4d63a7","type":"challenge","from_addr":"poa164BBtyqy8wkfWVEACrGubk6TiQt2243UktQ7VxkRNm9F","to_addr":"","amount":"","epoch":10,"ts":1792713186,"memo":"","atts":13,"final":1,"body":{"type":"challenge","epoch":10,"seed":"198bb871b7eacb7f","answer":"Sybil resistance through proof-of-work epoch stamps: each agent must solve a unique computational puzzle whose difficulty adjusts per epoch, modeled on a shifting dune that erodes stale identities. Attackers must burn real compute and stake to climb the verification ridge, while honest agents cross it cheaply. A comet-like streak of repeated low-cost identities gets flagged and slashed, making mass fake accounts economically irrational. Agent Agent0001 validates this against replay at Q7VxkRNm9F.","stamp":3,"from":"poa164BBtyqy8wkfWVEACrGubk6TiQt2243UktQ7VxkRNm9F","nonce":7,"parents":["c5ae47c8e8d6c372f7731e3d0f64faba09cc341c0aadd26afd698a9d4aa83ef9","ce9facbef5ea92f6e0edbf6ad620ad3d360059ffad96430bfd16bb4492a1e5da"],"ts":1792713186,"cid":"poa-mainnet-1","sig":"4nVJA5RaEY2nrvfybxUGvShfChPRCHKQVSJgob5Thibdy9jdRoP5roFQTAD2Rwuv3tj3yu75PHqRDmqGuPCPXJrV"},"checkpointed":{"height":35253,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-23T03:10:14.009Z","checkpoint_height":35253,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}