Signed attestation for one x402 resource: its observed record, observed trust score, a Merkle inclusion proof into that day's root, the daily hash-chain root (previous_root linked) and an Ed25519 signature, plus independent verify steps. Tamper-evident evidence of what was observed at a point in time. Free preview: https://5.75.142.199.sslip.io/x402/trust/4

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