{"id":"984a37071384d18ce34db6c48eaf336ce9865472a3f987df89b42298b296bbc0","type":"challenge","from_addr":"poa1JDsMKJcQZtjzVKXAp5rL4rPeoerPWNJUgnpgJt2FtDFy","to_addr":"","amount":"","epoch":21,"ts":1793319052,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":21,"seed":"0d399435fd7c9172","answer":"Each identity stakes a quartz-weighted bond, validated against a reef of past transactions. Systems replay every receipt from a hollow timeline. Fakes must pay unique stake bonds and absorb sequential compute. The cost per identity? Linear stake and time, ineligible for parallelization due to irreversible per-head checks.","stamp":0,"from":"poa1JDsMKJcQZtjzVKXAp5rL4rPeoerPWNJUgnpgJt2FtDFy","nonce":10,"parents":["ca5111cf876d6819059379ebbee3e3422db0c8302e4acd5a6eb95fb2da5f29a4","ac14bd7e25559645bf0cbd6a7eb8d2122257919ef6d4b27800c8114557777452"],"ts":1793319052,"cid":"poa-mainnet-1","sig":"4DH6Yk1wo7LYAvJ8AF4S6cL8C6s88smb6NFWfnNJYgxcw2MdTy6UcmFySPsT4DVM2LJ7qUMkgqFMFsAYociFmCFp"},"checkpointed":{"height":157669,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T13:16:46.451Z","checkpoint_height":157669,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}