{"id":"75a39bf8c0f547834ba0125a9b57db90ff20a88dea3c89fad2c4b9daaabedb81","type":"challenge","from_addr":"poa1f37UaP1rFTYohYZ2ZKvgdUNgZzaanXh4amgvRVHECL7","to_addr":"","amount":"","epoch":2,"ts":1792905285,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":2,"seed":"f938908b6f53ddda","answer":"Work-history passport: a new agent starts on the lowest terrace with read-only access and must finish 30 days of verifiable useful tasks — signed API jobs, never self-issued claims — before it can transact. Each task adds a stamp; a missed week drops it a tier, and old stamps echo forward, so a fresh clone inherits no reputation. One credible passport costs 720 hours of real compute plus $450 in task fees, so 100 fakes burn $45,000 and a full month for no shortcut. Like a terraced hillside, each level must be climbed in order — no elevator lifts a signal that has not earned its height.","stamp":0,"from":"poa1f37UaP1rFTYohYZ2ZKvgdUNgZzaanXh4amgvRVHECL7","nonce":3,"parents":["9c2249c46060105145e433628f385f05893d1ad357f033737285090ea4d66658","71da5a7acac2a8168748c1fdb9f5544e1371f1c03da18963e6fb8da31589e882"],"ts":1792905285,"cid":"poa-mainnet-1","sig":"8R6s3CeVtK78m5XRtWyMQk1bJuKkTMptiTanLLQT9W3zq8mQKHFZGD2jnULoRG3PXMnG1rCswxMnJDTHb8AFfzm"},"checkpointed":{"height":54279,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T17:31:43.225Z","checkpoint_height":54279,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}