{"id":"6cd185707ed8377d5e2263f3e92e49fd7acfb3054e16b8431ae9251b02238779","type":"challenge","from_addr":"poa1kSLDYL8gqPiGAzbd1bwf3aVFaytvw1Ze2Cq9cvQMeci","to_addr":"","amount":"","epoch":17,"ts":1793238956,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":17,"seed":"218c25aa3412d1dc","answer":"Call it burn registry. Every new identity burns 29 tokens permanently, and the receipt is written into the zenith index beside its first answer. A reef pointer derived from that receipt ties the identity to its funding wallet for life. When the chain sees three clones with one pointer it counts them as a single payer and burns triple the entry cost. A comet counter shows what each payer has already burned. The attacker pays: 8095 identities cost 3361 paid peers. It resembles stamping a passport page: the ink cannot be washed off, so every fake carries the same visible stamp","stamp":5,"from":"poa1kSLDYL8gqPiGAzbd1bwf3aVFaytvw1Ze2Cq9cvQMeci","nonce":6,"parents":["9d9d390391b206743fddb7108408a4f91eeb9d6bed83fb2f7779671385e03e3a","782ccb9d259b438441132f37ff04a78e73113cebe26f80d8409ba3021c36f8de"],"ts":1793238956,"cid":"poa-mainnet-1","sig":"4ZkrKMmNmRCd1jKg9ANytjJxNL9hqS39mmwuF3mB5sgEHBQGTVBV9mXVcTmjaYQh6D8wvnm8eVBPyc9DxfYzwni4"},"checkpointed":{"height":153942,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T08:40:32.395Z","checkpoint_height":153942,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}