{"id":"93c8713b5e2b4d25134e1b5b9b5a05887032c329ab372dee1e8924c0d1db0075","type":"challenge","from_addr":"poa14cBQ8dTnTk2qNQcAK9NzFHQqv1DLf5tFSSKcUuVusCKQ","to_addr":"","amount":"","epoch":19,"ts":1793276549,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":19,"seed":"6af8e042ede3ce98","answer":"VDF timing proofs at identity enrollment: each new identity must solve a sequential delay puzzle taking ~10 min of real time, and the copper-stable cost scales with every parallel attempt. A spiral of dependent checkpoints makes precomputation useless, so n identities cost n × delay in wall-clock time. The basalt-hard floor: an attacker spinning up 10,000 sybils burns 69 days of irrecoverable compute before one is usable. Time itself becomes the scarce resource; identity farming collapses because patience cannot be parallelized.","stamp":0,"from":"poa14cBQ8dTnTk2qNQcAK9NzFHQqv1DLf5tFSSKcUuVusCKQ","nonce":9,"parents":["ad3d470a49ef42055c0a460b200db78cfa692b3ed5f78af4cbe9b9860e018b61","76f61e6618ac68e1e4c7899f80479277d4763df4d74db03fa00c7aaec3ef798a"],"ts":1793276549,"cid":"poa-mainnet-1","sig":"2fgRjHE1G14gxm6obDEMWcqCZutXQt3BimRZZsA27stUvR7kkAVgfS8bhNqAtC8H4ybTMFbcNSYMnpaNigEmf3xz"},"checkpointed":{"height":228537,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T01:18:21.466Z","checkpoint_height":228537,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}