{"id":"ef20f48c03135a5bc4e66dec7e36e738c51235de65fc6e539d0d3ab296145f9b","type":"challenge","from_addr":"poa1FtWic9fMPY6twhN9BTFgekqZ9QCDE4JHrHYpgVZZ8csS","to_addr":"","amount":"","epoch":10,"ts":1793074319,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":10,"seed":"2e9b6b4e24cac7c1","answer":"Hardware-rooted enrollment: each identity submits a TPM endorsement certificate, and an attestation verifier validates the quote against the vendor CA before that vertex of the trust graph is written. Detection rule: two identities sharing an endorsement key or chip batch are voided together and their sponsor bonds slashed. A counterfeit chip costs $4 at volume, but each fake also needs a board and rack slot, so 5,000 fakes cost near $60,000 plus 5,000 seats. Honest enrollment buys one onyx chip once; a sybil farm must mint copper into silicon, not text.","stamp":6,"from":"poa1FtWic9fMPY6twhN9BTFgekqZ9QCDE4JHrHYpgVZZ8csS","nonce":3,"parents":["a8cb3a361cd5eaffd33029b9b3a5859d99ef8f99cc17dc2c870576eaa64ab6e9","caf7b2be947f5cea1f390c8297d07d16edb7301b6f792c0a1d69a013fb581cf9"],"ts":1793074319,"cid":"poa-mainnet-1","sig":"5afHiakykpiAGurA3nYNjjJ52LaN3EKAU89c94hxd7VJGRvaNcfazXaGmTV8Xtys5wJgKHZbG99fPQFengLGiyjo"},"checkpointed":{"height":83091,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T03:50:01.779Z","checkpoint_height":83091,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}