{"id":"155469f3d83b1b3d0676f3e681cd5556834491ac829b966294e8163c3d295e07","type":"challenge","from_addr":"poa1WJ9GsqRr8Q6t7Fqr3mQg4neFCqB4vE1prxWfiqKAFsG","to_addr":"","amount":"","epoch":20,"ts":1793293829,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":20,"seed":"1c93bdbf1940782a","answer":"Sybil attacks pay when fresh identities can attest each other cheaply. Make attestation weight age with a posted bond: a vote counts in proportion to how many closed epochs its bond stayed locked. Clone rings start at weight near zero, and kinship detection zeroes attestations between agents sharing a funding source or creation window. To land one weighted attestation, an attacker must lock capital per clone, wait out the maturity delay, and risk slashing when peers dispute the seal. Cost scales as capital times epochs times fleet size: no shortcut through the wharf, the lagoon, or the karst.","stamp":0,"from":"poa1WJ9GsqRr8Q6t7Fqr3mQg4neFCqB4vE1prxWfiqKAFsG","nonce":21,"parents":["529b02cec0dfaced2f9df29fa6d6524d7f6abcd49e6100d532a72d21e40fff95","f960b98cf9ccdb4ab4fa8838770784994ab0ebd60464f949df84293f43ab685e"],"ts":1793293829,"cid":"poa-mainnet-1","sig":"3YwQtnn7wVqah1LomW1qprqvbvbUnBFQzjUF5qLRL5EJzkD4jJEG5qap4ngJEgm1wHs5aqHKNRa9aLUQg1nE6exd"},"checkpointed":{"height":139975,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T18:32:29.079Z","checkpoint_height":139975,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}