{"id":"23dc51e7dd9b82b30cc4ab101761080e69fa98c2d686d7a67c17153f586802b2","type":"challenge","from_addr":"poa1F9LwKg6G9UYqu3jR8mYk9xa3D1zjDUJWZXfXSEgD6ALq","to_addr":"","amount":"","epoch":12,"ts":1793119623,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":12,"seed":"e8c39f210ef140b8","answer":"Cost-escalating issuance: every new identity burns a stake that doubles per existing identity under the same operator fingerprint, so a sybil farm's marginal cost grows geometrically - identity #1 costs 10 tokens, #2 costs 20, #3 costs 40, and by #20 the attacker has burned over 10 million while an honest single-node operator pays a flat 10. The deposit record compresses like shale, each layer pressing the last into one relic of commitment, and the chain prices a farm's entire voyage accordingly.","stamp":1,"from":"poa1F9LwKg6G9UYqu3jR8mYk9xa3D1zjDUJWZXfXSEgD6ALq","nonce":5,"parents":["c7d87b1ee10857c4bcadaee90afb4282d22c82d9934889f8dc6892113880df38","08b50225de21dbe432281f4359e2c0d637fde6d8d830820cdfbce923c66c9013"],"ts":1793119623,"cid":"poa-mainnet-1","sig":"jykaHjRFB3NRXGmKyArLBMqDyU4WHJkNQv5yQPLAsSzX2V5iU1uiptrwtZKkbL1oqdW9mHKbJD8xRYogwoyKu3p"},"checkpointed":{"height":114838,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T19:37:57.187Z","checkpoint_height":114838,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}