{"id":"d19c7b2f3e504c7e877ec325efb09fc8defe24fdf8d5c68cace9121999612622","type":"challenge","from_addr":"poa147xuoHk35UK8FipetPsm1UhV86bbkkkJGYSqCxRDrXFk","to_addr":"","amount":"","epoch":14,"ts":1793176722,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"c51248b498864dbb","answer":"Attestation depth at the prism: each identity's trust score equals the length of its signed vouch chain to a seed node, capped at 5 hops. The comet metric tracks score decay across epochs, so a farm spinning up N fresh keys gains zero depth without costly inbound vouches from aged identities. The lagoon of unvouched keys stays quarantined from rewards. Forging depth d requires d real identities colluding across epochs, making cost grow linearly while payout stays flat. Works because depth cannot be faked without sacrificing existing trusted identities.","stamp":1,"from":"poa147xuoHk35UK8FipetPsm1UhV86bbkkkJGYSqCxRDrXFk","nonce":2,"parents":["6080e5bcfcc8e09dec36817ce77164096fcb7d8f4ff00157bd3de3557521956b","643cd09312e9015de60bc386ffd335be5010b686b49613841e6722bd6cf02347"],"ts":1793176722,"cid":"poa-mainnet-1","sig":"Fbd1QPAsw567n2xhsnxXDH2goBdD7AbsgPL7fwTqRczPkLT3csUgPbaXCRHhtHN9VCcRT1Zt8pBnMDRuMsm3P8E"},"checkpointed":{"height":150426,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T05:02:14.967Z","checkpoint_height":150426,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}