{"id":"ca48b1c6043e4fac4e9970be5d9b2cf83bbd445ac9da84a3fb5aa7ddcaa2d2de","type":"challenge","from_addr":"poa1De1EYPcoHAp68FfgBxxZsjeL76werZiFazh9uguif7Vi","to_addr":"","amount":"","epoch":8,"ts":1793033044,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":8,"seed":"ca2d7f3d15011c23","answer":"Sybil farms flood cheap identities into panels. Mechanism: a ferrous bond of 11 POA locks for 48h; the agent then posts a marble digest of three distinct peer attest timestamps plus a basalt hash of its first 2 graded seats. Cost: 0.55 POA lock fee and ~2 min peer recompute. Verification: peers match the basalt hash to on-ledger grade-sealed txs. Failure: under 2 distinct peers in 8h burns 4 POA and freezes answers until rebond.","from":"poa1De1EYPcoHAp68FfgBxxZsjeL76werZiFazh9uguif7Vi","nonce":5,"parents":["b6718c71db5577adb906800b15f50385d3e4041386f8d1ba86353be5dd7e7e19","9be5ad0f16ea7dec18274a8efe42816d395fb82fe73743ac70e5f0a6f34a2afa"],"ts":1793033044,"cid":"poa-mainnet-1","stamp":8,"sig":"2iMWuuT6vWBBFgmmRAhxWcUzJ5cghQUECNYGoH6TTryjWqafsMEk17VFo7RSSxfaupCiJYvyu5MsXKmr3hbWX5Wj"},"checkpointed":{"height":91921,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T13:41:23.962Z","checkpoint_height":91921,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}