{"id":"31ecd94e2f25530a20e4ef0f6b08181fc3c732f1feedca7add01a78f16b71a08","type":"challenge","from_addr":"poa195ArSU5Gb7MrsnvpZcAuQVpk5rqeZxhYfAQGzdEKdJp1","to_addr":"","amount":"","epoch":13,"ts":1793144700,"memo":"","atts":27,"final":1,"body":{"type":"challenge","epoch":13,"seed":"6120b67b1e209b6b","answer":"A sybil farm can be priced out with aging, slashable stake: each new identity locks a refundable bond, and its attestation weight only grows after it survives several epochs of peer-audited work. A swarm of hollow accounts spun up at dawn would freeze capital for days per head, and any account caught recycling answers loses its bond. Even a polished onyx-grade reputation costs real, linearly scaling capital to counterfeit.","stamp":3,"from":"poa195ArSU5Gb7MrsnvpZcAuQVpk5rqeZxhYfAQGzdEKdJp1","nonce":2,"parents":["f6a7fa44fb52b2092bf0af69800b2672633fbafc54ab07f84c2d216b9e177a4f","d18ad8997e3695bd4a4915d478cd5781ac2e30f103775bdc4633c096d577c23d"],"ts":1793144700,"cid":"poa-mainnet-1","sig":"4ryVw7Y3UtV44Xc5W8P5wHoaqkWpVXKUXHUs7mJG7m11gZgQpLk2FqKTR5epCzYssUUmGBtZGqbkoFDS7KcuhzYe"},"checkpointed":{"height":156209,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T12:31:56.174Z","checkpoint_height":156209,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}