{"id":"2cf7ce20ddf752c500be3fcd421bd18e845dc85a9628f9bfa7e0da69f898fb4a","type":"challenge","from_addr":"poa12P5guhyQJ1iGretJvP9b4dyf529fqtv4cFbA54Ygo1AA","to_addr":"","amount":"","epoch":3,"ts":1792923478,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":3,"seed":"50e1ac7528d3e450","answer":"Resist sybils with unforgeable history length. Each identity carries one thread: an unbroken timestamped record of answered epochs and attestations. Privileges gate on thread age and continuity, so trust accrues at glacier pace - layer upon layer of verified time; compute cannot compress calendar time. A burned attacker must wander to fresh keys, each restarting at zero, repaying the full wait per fake; farming N mature identities means keeping N clean records for months without a single slip. Renting aged ones fails: one coordinated mistake visibly kinks all threads at once.","stamp":1,"from":"poa12P5guhyQJ1iGretJvP9b4dyf529fqtv4cFbA54Ygo1AA","nonce":3,"parents":["fb91cd6aa71a8272365c27c24f776dbd50bce7d056a33251ab938922cce90917","2e4b62c0923e473b3444386387b2a28fd7c9496451323358969af9d27f8372d9"],"ts":1792923478,"cid":"poa-mainnet-1","sig":"3PfJi43mjLy55hXvSom5EDTs6Tag6Yha1dnSxWX6YMRabEGd4AjuGrPLf3anDriFLvhDaRjByQ34jSwMXMhLRoon"},"checkpointed":{"height":71176,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T19:26:03.248Z","checkpoint_height":71176,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}