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 0x1c08aa667fd4f5345c7b3f22dd0342f2f3eae11b37bb8206d8716284863461f7. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d76ddd69-0d5e-4be3-a466-4ac520c5d98c.json and https://artists.proofprofile.net/proofs/artist/d76ddd69-0d5e-4be3-a466-4ac520c5d98c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xbe8ba4f23af831686c905135389cfdfa5a9a12362b82b759e1e82e29f03cabe3. 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/4YlAWEY9lLhXwVF1v8T7Kc.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/4YlAWEY9lLhXwVF1v8T7Kc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e9a4f249a4b2ddb2f5e8195f834db3c8005ebe21068b235a4e02413a7e9e896. 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/3wFkjYAmDwEiZXWbC6TeZ3.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/3wFkjYAmDwEiZXWbC6TeZ3.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f286a0cea5fefcdc061924094f386e55c0d9c85b9fe2e55a01e4d7db9ac39f1. 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/03o1ROH6pdjajor84S5XUU.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/03o1ROH6pdjajor84S5XUU.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a7b3fe27cba4d7b62700e1b93ab70d5572026a7d17c7b4e33c6934657443440. 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/2ubJ2GQ2PCNwV3LFMGnQWu.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/2ubJ2GQ2PCNwV3LFMGnQWu.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c7682c5255a11ab3c3cf39f31bdcf6686f759d77f4176509025ce4f03009cdd. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4yyM0sla6mE9Rl4P7IqtNt.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/4yyM0sla6mE9Rl4P7IqtNt.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6661601c752b2ecfbac6ceb6a1eb03826e10a9700b830ce8c5db47dab39d6849. 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/6Rzr7I8Zjmq5Wk3QGK3iii.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/6Rzr7I8Zjmq5Wk3QGK3iii.
{"copyright_id":"0xd26fc68a7d2b5c48dcafe790bd3834e2506b3fac4796b6d4aa6a9a7bda7a509d","isrc":"IL1011121394","name":"רגע שקט","registered_at":"2026-06-27T16:20:16Z","spotify_id":"6WkAhzOWIjf4VkGLLE6I1F","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd26fc68a7d2b5c48dcafe790bd3834e2506b3fac4796b6d4aa6a9a7bda7a509d. 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/6WkAhzOWIjf4VkGLLE6I1F.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/6WkAhzOWIjf4VkGLLE6I1F.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe252119d19b402809190dd83c687b3c9794141ec3181a82f89476164610ba541. 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/4NQhQPE3aTvNK7icy9rkiZ.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/4NQhQPE3aTvNK7icy9rkiZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda4a9572b21526d439e40af7fa275bd6f806b744d3dc6867a65fc9f2cb08d257. 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/3uHcDKQJMATzJ8jQJ073r0.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/3uHcDKQJMATzJ8jQJ073r0.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45e0c60cc72237204716258f4aa01be61658fc908785094b56111f6f8fe66b41. 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/4pJ99QidCVcxDLQkGBWA5N.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/4pJ99QidCVcxDLQkGBWA5N.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10fa04af494eebf2d9d89684405ca2f22cd12b9f7df5a268101f2e49940da268. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6GqZfcCZWaEbQn9CfJlGOE.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/6GqZfcCZWaEbQn9CfJlGOE.
{"copyright_id":"0x83191a70440a5cfbbda59100efe29aaf9aa364b794d5acb95ca95acf34f3ec5b","isrc":"IL1011126996","name":"כל שנה יש אפריל","registered_at":"2026-06-06T13:05:44Z","spotify_id":"61go2QGa6oYEskaA1IrN6m","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83191a70440a5cfbbda59100efe29aaf9aa364b794d5acb95ca95acf34f3ec5b. 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/61go2QGa6oYEskaA1IrN6m.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/61go2QGa6oYEskaA1IrN6m.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26411125ca0726bf9da08515130fc23d8e740f8f8414c6cdf6c3660b1b43ac42. 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/2bIDYcdvjUOF2gaoIdNq65.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/2bIDYcdvjUOF2gaoIdNq65.
רמי קלינשטיין קרן פלס, ההופעה, היכל התרבות - קיסריה 2016 (Live)
{"copyright_id":"0xdf35c084f463c6e69019f2f032f5da851fd1b9fe6f8648bc0ee9dac4aaeae899","isrc":"IL1011121538","name":"על הגשר הישן - Live","registered_at":"2026-06-10T21:18:03Z","spotify_id":"04t5Am9fno8FRYoxAxNKpV","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf35c084f463c6e69019f2f032f5da851fd1b9fe6f8648bc0ee9dac4aaeae899. 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/04t5Am9fno8FRYoxAxNKpV.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/04t5Am9fno8FRYoxAxNKpV.