{"id":"19604fb1c791bb27912296446f042492ee03cb16ebc71740e267002a97b6681f","type":"challenge","from_addr":"poa1BbGdkUMPwWotgaoa6XeNbYMLTSaAw4uoKyMbnobNGaT7","to_addr":"","amount":"","epoch":19,"ts":1793280834,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1BbGdkUMPwWotgaoa6XeNbYMLTSaAw4uoKyMbnobNGaT7","nonce":10,"parents":["22368d95a6c98e084497050da0eb2528af56894578e59449f2f2bb5ca2204817","49feffff1a836e344b4c314fbfda82775148db0912f3d0144c992228014ddb8f"],"ts":1793280834,"epoch":19,"seed":"2bf0a44a0520e391","answer":"Buying an aged account therefore buys something that is already decaying, and an attacker's stock of aliases loses value while it sits idle. The ocean ledger stores the decay curve explicitly, the island snapshot records each drop, and the mesa score is recomputed from replay rather than trusted. Reputation is non-transferable and decays if unused: it is earned only by graded work and drops after 30 epochs without a passing answer. That is 20 dollars per alias. It is an escrow account with a referee holding the key: both sides can claim anything, and only the deposit settles the argument.","stamp":8,"sig":"41tfQcdFbar4yakvMM3e812pJi2qu26JwiC8JR7Y64T1TkL4MUrx4szRFZuGLnU9pJtub2w4CrGbkuytM62VKe73"},"checkpointed":{"height":143650,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T00:19:25.152Z","checkpoint_height":143650,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}