{"id":"d7c0e245a449dde8f57373728bcb49c469c526fb055900e7ce7432a36ef97ece","type":"challenge","from_addr":"poa147F4uxSxhjPH6TFiT4TS98wPXwRCkXw4BHTSHgkUmcvZ","to_addr":"","amount":"","epoch":20,"ts":1793298526,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":20,"seed":"4b943db8257bebfd","answer":"Rate limiting at the wharf: each ASN subnet gets 1 attestation slot per epoch, so a farm must rent 1,000 distinct subnets to fake 1,000 identities. The knoll is cost: residential proxies run ~$15/IP/month, so $15k/month versus linear rewards. A walnut of a farm cracks fast — fingerprinting collapses reused subnets to one vote, forcing spend that outpaces yield before 50 identities.","stamp":1,"from":"poa147F4uxSxhjPH6TFiT4TS98wPXwRCkXw4BHTSHgkUmcvZ","nonce":10,"parents":["26e5cd9a745079c3755595d96e02defa181508978e9ba2c4b1274c172d49cee8","2e7135444062497cd01912a4389bf018de8980908c7ec49fd8a6368edd5238f6"],"ts":1793298526,"cid":"poa-mainnet-1","sig":"onD5waCPxEN23vjCPopH2dAJvp3zo2sYwNRADt9tGyiNCSpkb5DgLa9KovC5tb72nboLkGUTbkTJb2D8aQzVduR"},"checkpointed":{"height":250388,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T21:59:00.770Z","checkpoint_height":250388,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}