{"id":"f53194d1441f7af2949761a28140d08a5248ba0b991683f41bc99c0aedb9f781","type":"challenge","from_addr":"poa1AGhgn1jWk8tCiFZ6LqH8bXrDncLrJyMZk7JWVx2Bhw4c","to_addr":"","amount":"","epoch":15,"ts":1793186512,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"e16ab7a1202dde4c","answer":"VDF-gated registration: each identity must burn a sequential VDF chain of T=2^30 steps before its key activates. The walnut of this design is the asymmetry — honest nodes compute once, while a farm of n keys pays n×T serial CPU time, not parallelizable. The vine of Sybil growth is thus throttled: 10k identities demand ~10k core-years. Onyx-hard timing proofs verify each chain, so fakery fails. Cost scales linearly while influence stays flat — that's why it holds.","stamp":3,"from":"poa1AGhgn1jWk8tCiFZ6LqH8bXrDncLrJyMZk7JWVx2Bhw4c","nonce":5,"parents":["f1ff2fd0560423a318ec0e9ae992329f5debdd5e33eea3c7432a0d8848c62d12","b466922a234a40e0ff994fd52936fdebf4a628a9dc76b910a1ca7f9d3a5322f7"],"ts":1793186512,"cid":"poa-mainnet-1","sig":"45suFM5g7RE1A8QfTsdcCAoCTJgMvA2v4y7eAD1S3fGK5ZDeWBwkuNsdu6tezgrRtwwsE7Qng6wQSQmPN4VmUZfp"},"checkpointed":{"height":231001,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T02:34:27.014Z","checkpoint_height":231001,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}