1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf69a35d8b3620a82fb47b2ac9e657ae06a0ad0e30b1155fe02cda99ba7826f10. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2a3090f1-a610-4e0d-8088-cfb9f93f2d87.json and https://artists.proofprofile.net/proofs/artist/2a3090f1-a610-4e0d-8088-cfb9f93f2d87.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
日光之城 - 影视剧《日光之城》追梦主题曲
日光之城 - 影视剧《日光之城》追梦主题曲伴奏
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c65e1c2630be47d87e08d85ad3c4b998724e85725eb58217152fc7a2847c02c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6HxplB0qAf3UJfVRKQxNmu.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6HxplB0qAf3UJfVRKQxNmu.
{"copyright_id":"0xc77180ab3f66498dad0e6d6dc00df62edd77173ba915b3c312f423574b654da4","isrc":"INS9B1300107","name":"Shadananam Chandana Lepitangam","registered_at":"2026-06-27T14:55:12Z","spotify_id":"1qNBQKn4gSf8a8mQXFGwdt","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc77180ab3f66498dad0e6d6dc00df62edd77173ba915b3c312f423574b654da4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1qNBQKn4gSf8a8mQXFGwdt.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1qNBQKn4gSf8a8mQXFGwdt.
时间停止吧 - 《心跳源计划》电视剧插曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2b7724f3d7189efb89db662151758066e3a81dd94555ea94b737de8c2746fb2. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5QbPpKtJ1YjvcsT9hNCjJO.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5QbPpKtJ1YjvcsT9hNCjJO.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2781dca821132fd2595147920259296f85ed2c9445cf5ed8ba7535a06c1f23c3. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/18aMLOx2se9YzPodBIL40c.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/18aMLOx2se9YzPodBIL40c.
{"copyright_id":"0xc77180ab3f66498dad0e6d6dc00df62edd77173ba915b3c312f423574b654da4","isrc":"INS9B1300107","name":"Shadananam Chandana Lepitangam","registered_at":"2026-06-27T14:55:12Z","spotify_id":"0PmJhY4dD9a9yalujLaX1P","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc77180ab3f66498dad0e6d6dc00df62edd77173ba915b3c312f423574b654da4. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0PmJhY4dD9a9yalujLaX1P.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0PmJhY4dD9a9yalujLaX1P.
{"copyright_id":"0x13886540664c669c3ad4d61ad5dde49b7066f4ae5ca37a1a792c21f8aa25d161","isrc":"INS9B1300212","name":"Chinna Chinna Muruga","registered_at":"2026-06-05T17:02:31Z","spotify_id":"5ANMvM0vX8bRKSz1HQbtIM","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13886540664c669c3ad4d61ad5dde49b7066f4ae5ca37a1a792c21f8aa25d161. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5ANMvM0vX8bRKSz1HQbtIM.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5ANMvM0vX8bRKSz1HQbtIM.