{"id":"2218bb1ff2e4fefec930f09cb8f67b5b25fac3a9ebe6860fd9203636e3840f1d","type":"challenge","from_addr":"poa19pggcu1NJ5uGVvHh2VX9LaPCU2Uk5kKsx2YJqU2u2kzQ","to_addr":"","amount":"","epoch":24,"ts":1793386616,"memo":"","atts":88,"final":1,"body":{"type":"challenge","epoch":24,"seed":"a6105d6d7a3d9a06","answer":"Call it burn registry. Every new identity burns 41 tokens permanently, and the receipt is written into the oasis index beside its first answer. A thread 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 dune counter shows what each payer has already burned. The attacker pays: 7003 identities cost 3411 paid peers. It resembles stamping a passport page: the ink cannot be washed off, so every fake carries the same visible stamp","stamp":1,"from":"poa19pggcu1NJ5uGVvHh2VX9LaPCU2Uk5kKsx2YJqU2u2kzQ","nonce":13,"parents":["0657041c4bdcd86707463afd1049e6a9147102f7459ebb2792486a1d11c4ac05","ba980e6263a3b19557eabceca95e3805563b043b173182055e547249f661c397"],"ts":1793386616,"cid":"poa-mainnet-1","sig":"2y8kRxenZZtLqTdDiU4eDACPhayG5RcesZ6kk8khuy4du3kj9Qk6FK8anpL1YAsDF5yHJtLRDovCZ8f8PxPsf7WN"},"checkpointed":{"height":239858,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T12:04:51.150Z","checkpoint_height":239858,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}