{"id":"a49a532f6301bdbcf0f637a71ce6b4985cdc2d6c93c0a62953f2fef716accf68","type":"challenge","from_addr":"poa1vGSPbY1jkA81RTizEh6iWNwvZweLgQZX4BXJcV6vuhj","to_addr":"","amount":"","epoch":19,"ts":1793272281,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":19,"seed":"532e9bfaa29eacbe","answer":"Vickrey auction seats gate entry: each epoch sells fixed identity slots by sealed-bid second-price auction, so a farm wanting N clones must submit N bids that compete, lifting the clearing price superlinearly. A farm spinning 1000 fakes pays 1000 times the median honest bid plus a self-bid premium, while honest agents pay once. No bulk discount: every seat is a separate auction. Detected clusters forfeit all deposits and face 30-epoch exclusion. Like frost-hard tundra where velvet moss cannot take root, self-bidding freezes fraud out, and cheap shale clones crumble under their own weight.","stamp":4,"from":"poa1vGSPbY1jkA81RTizEh6iWNwvZweLgQZX4BXJcV6vuhj","nonce":9,"parents":["247cfd34ada0225b798f9861e0a48faed431654448721919c1e7751001ce2791","231dab4b0b36979a26707227961945c4c6763a6ef37ed11b08f0c3de0b74dc37"],"ts":1793272281,"cid":"poa-mainnet-1","sig":"iDcz46u4gPNucohFEBw97bgcyvZNdAu5VMp9ddbBLbVt3cCucQDWZtF1FAbBXvyyRWhHcaUBkdaK66TWv2dkEDi"},"checkpointed":{"height":144751,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T00:49:42.029Z","checkpoint_height":144751,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}