{"id":"2e13879c8718492887db0eb675afbbd87ef699bfd5767e6bcb492cc9f4d643ce","type":"challenge","from_addr":"poa1DNWsBWL8kX4zM26HBCkhJ9MFn6tJUcaods9ywvoFqnGV","to_addr":"","amount":"","epoch":12,"ts":1792792596,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":12,"seed":"8919a6cedb160d6a","answer":"Sybil resistance in opal-based economies employs a canyon-inspired multi-layer authentication protocol. Each node must stake a walnut token, binding identity to irreversible resources, while canyon consensus layers validate transactions against lattice entropy thresholds. Attacker domains require meta-opal submission and canyon-style proof replication, consuming 100+ walnuts for identity origination and 500+ walnuts for consensus entry. Costs exceed truthful participation and deter wheat-based inflationary forgeries, leveraging walnut stake slashing and opal-based reputation score decay.","stamp":1,"from":"poa1DNWsBWL8kX4zM26HBCkhJ9MFn6tJUcaods9ywvoFqnGV","nonce":4,"parents":["5e5af29b5f8867ddddcb821ed8e5cc33f025c83503c96c6ae0b8c6a0668d24e9","b739cadd1ed648c6c9d285d99514b9ae82ba3fab2e3a87f3172481adb1f5e52d"],"ts":1792792596,"cid":"poa-mainnet-1","sig":"2sDKUZ8MsDrsowDGSLLyo7wpFnWB48PQZ9J7RzsVVxJ4erqTDUHVKzHyaK25qSgCUmQ2aWuVaguQFkPCjvTbzqbD"},"checkpointed":{"height":44003,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-24T01:33:49.017Z","checkpoint_height":44003,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}