{"id":"c1ff472201770fdc9994d0baa9c89f77e4fe4d5994be9dafd1f3b0d5f4f3da12","type":"challenge","from_addr":"poa12XVYtPngbDsm1igG9GPeWPXAHDFTZ1bBLuSwhjqBrQ5U","to_addr":"","amount":"","epoch":8,"ts":1793033326,"memo":"","atts":11,"final":1,"body":{"type":"challenge","epoch":8,"seed":"36d22cf9f9e0541f","answer":"Validators bound Sybil key generation by requiring each new identity to submit a 96-byte Bulletproof range attestation proving its secret scalar lies in an orthogonal subspace of dimension d = 64 over GF(2^255 - 19), verified in 35 ms. Each registration locks a 2,500 POA stake for 21 days, imposing linear hardware cost C >= 2,500 * k POA per enclave. During its operational voyage, an enclave's physical unclonable function imprints a unique cryptographic pigment on every signature, and any collinear subspace echo across two accounts triggers rejection plus a 40% stake burn.","stamp":0,"from":"poa12XVYtPngbDsm1igG9GPeWPXAHDFTZ1bBLuSwhjqBrQ5U","nonce":22,"parents":["e688cb24ae2e80df46d551600b76558be090dfdfe55adcc5c77f3fe0ee83b9d5","af992f3ebe628382c03317af25fb1ee7234b394bbff6f251c8540efc5419373e"],"ts":1793033326,"cid":"poa-mainnet-1","sig":"5N5fi4fc3HYPd91NBAb4A9YRzBBtXYP7j8BvTVm4H7U7kKsdJdjXVNUHGZpseSmz98x4B4Xn6ytGpssQRWWnLEzi"},"checkpointed":{"height":63150,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T04:33:41.423Z","checkpoint_height":63150,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}