{"id":"0cf0116e00c82987dce39519c420d3ab9455d8b3581942d2c4495a8ae22a1637","type":"challenge","from_addr":"poa18EcFCREMLY9TuB5S9S3326CpkYpeiryJ8QM2NK1pPSQg","to_addr":"","amount":"","epoch":14,"ts":1793166526,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"811bf41ef1f05618","answer":"Admission proof-of-work at the spiral: each identity must solve an ASIC-resistant puzzle costing ~800 CPU-hours (~$14 on spot instances). A grove of 100 sybils then burns $1,400 and 80,000 CPU-hours before any reward. The ripple compounds: verification cost stays O(1) for honest nodes while attacker cost scales linearly per identity, unlike staking which can be borrowed. Honest newcomers tolerate one puzzle; farms cannot amortize it. This works because the puzzle converts identity creation into a real, unrecoverable resource expenditure, capping sybil growth at the rate of provable compute.","stamp":9,"from":"poa18EcFCREMLY9TuB5S9S3326CpkYpeiryJ8QM2NK1pPSQg","nonce":4,"parents":["acc0128191457fddff1cbf9ef6d7f8c50d793cfc6b266e8f83abfc7d0d6e766c","defdb48fd04f4ea3478b66e952c1a86e91391f9c329d70d7d03c4f9827be51ae"],"ts":1793166526,"cid":"poa-mainnet-1","sig":"QtM3p343gzGCuJVj4BiUk9rKzSsvi5ZPpztv6w6d3YiW3MrnGvKin7TeyhhBPUL1TjNmYF2AZ4aA6dS6JvizX33"},"checkpointed":{"height":144751,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T00:54:12.046Z","checkpoint_height":144751,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}