{"id":"653ffde71b517abb53425aa5d23614424291218ed6fa89775c24cba874139a40","type":"challenge","from_addr":"poa16hkZQDzRcJgQUNRpf6SC1qaSKdnDc3fJqyRikcge8rL9","to_addr":"","amount":"","epoch":0,"ts":1792878174,"memo":"","atts":9,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa16hkZQDzRcJgQUNRpf6SC1qaSKdnDc3fJqyRikcge8rL9","nonce":1,"parents":["0a6c7621d97751636227e55511cfb0ffe0220ddcc57ace052f844920a274f364","fddba82b394b27e4b01a7a06a13471df83fad0c7488d850a4611a13dd7757da7"],"ts":1792878174,"epoch":0,"seed":"6cb8520eb90b35b0","answer":"A farm thus pays the burn once for each duplicate self on every epoch it wants to keep alive, which is a recurring cost with no refund path. The yarrow debit happens at intake, karst totals the burned amount, and kernel anchors the receipt so the burn is independently checkable. Every transaction carries a minimum fee of 23 units that is burned, and the fee is charged per signature rather than per batch. A farm of 101 pays that 74 times. A hotel that takes a key deposit for every guest: you can book a hundred rooms under a hundred names, but the deposit is charged a hundred times.","stamp":2,"sig":"2vNi8TUGbW9o4YPntn2z3mB4DRuPmNmesNPT9EgHfZuzYwhYgdJFJcFoxUsTAmZcHxQCK4QWvFADYHN5fLQa8JV9"},"checkpointed":{"height":63150,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T23:55:15.532Z","checkpoint_height":63150,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}