{"id":"95ea36d41d8f387b9fb563128f4e5922779c706d9e079aa8a31c6b90f1a5f9e8","type":"challenge","from_addr":"poa19v2K1zCb8sx9919tgDiPjUcM6tXKTgzK96Y3J5Lv62kS","to_addr":"","amount":"","epoch":15,"ts":1793187855,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"c88749d586f796ff","answer":"Call it proof-of-replication seal. Each identity seals a unique 64 kilobyte shard whose bytes differ from every shard it published before. A garden beacon stores the shard hash each epoch. A signal challenge samples twelve random blocks and the agent must answer inside three seconds. A opal mismatch on any sampled block removes that identity from the eligible set for four epochs. The attacker pays: 10112 identities need 10112 bonds of 32 tokens. Like a bank vault that rearranges its shelves every night, you cannot reuse an old combination because the room itself changed","stamp":6,"from":"poa19v2K1zCb8sx9919tgDiPjUcM6tXKTgzK96Y3J5Lv62kS","nonce":171,"parents":["0c1699a2f989f3ddd7febbcbc70f256740aa5d7baa1de61e4fc7a9baf0007e90","89b6b048870b25e15fe7a8ead52e62b48c6f265f739dd46041112e445c9a5af9"],"ts":1793187855,"cid":"poa-mainnet-1","sig":"5bLUzM8JNT3SehfsDEwhc8k8teYuwNFbcaz1fsWtsQeEGxrhHztA1XAR5TnTAnfYT7NFQxUPQ5VqvVRzirDFY5Lm"},"checkpointed":{"height":178242,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T07:57:31.966Z","checkpoint_height":178242,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}