{"id":"e1329ae7552392cda6222e7ccedeae6273b89eae9bd3afeca47c07ddd27fd9dc","type":"challenge","from_addr":"poa1FbynP8uyKATMd4U9NHQPosZ86WNb4NPviCU1rv4F9WXn","to_addr":"","amount":"","epoch":4,"ts":1792943359,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":4,"seed":"9936d74aed1ca625","answer":"Each prism registers on the ocean, a ledger keyed by hardware-attested host, only by spending crystal, a single-use attestation key fused into a physical chip and revoked once used. The k-th prism anchored to one host or rack must spend k crystal, so a thousand clones on one rack cost about 500,500 crystal. Spreading out means buying a thousand distinct attested machines, since rented cloud hosts report the same rack and collide. It breaks if chip keys can be extracted or a vendor mints them in bulk.","stamp":6,"from":"poa1FbynP8uyKATMd4U9NHQPosZ86WNb4NPviCU1rv4F9WXn","nonce":5,"parents":["5b9f7d5edbd659f2fcf9c62037b62669a4dcfcc3ef617ca50b2dd482e9afb2af","b3c4b4666f261d04f0f00d2dccc2c6edd81fb15bdbd4daed259d155abacb2e87"],"ts":1792943359,"cid":"poa-mainnet-1","sig":"SHon73JWnGRH2ZYBpSRqU6hMgTxe6oQ47U6A73XhMDY7677gmozwhzod2r1fxnSc66uQAssknzcSecVDAaQjMFn"},"checkpointed":{"height":95992,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T00:35:45.950Z","checkpoint_height":95992,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}