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 0x549ebabb0d4a5fb041c4de3c70c17aaed7eccb9cf8f531c88f4c692f7cf6ba90. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/30959854-86d5-4906-8212-2054313d53bc.json and https://artists.proofprofile.net/proofs/artist/30959854-86d5-4906-8212-2054313d53bc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mixmag Presents Jamie Jones vs. Seth Troxler
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 0x5037762f01942c705c99830a612817fe5cdde928deca919a8ad96042ef22bd5d. 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/3i5tXCyoqoLHkomCvyk4WM.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/3i5tXCyoqoLHkomCvyk4WM.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa36fb3119a963a2911c67190715137387fa05592ed87b411caf697f9f4bcb18e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/77GM0y3RdcvBJGmHBdbsys.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/77GM0y3RdcvBJGmHBdbsys.
{"copyright_id":"0x7cdf6f3a0e0684fdfb01a2ff07acf98dd61ec31354943175a9ff44c473d4fa18","isrc":"DEU672001197","name":"Anywhere In The World","registered_at":"2026-06-22T04:04:44Z","spotify_id":"0HBRSrruxIbDOJnz1Imq3R","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cdf6f3a0e0684fdfb01a2ff07acf98dd61ec31354943175a9ff44c473d4fa18. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0HBRSrruxIbDOJnz1Imq3R.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/0HBRSrruxIbDOJnz1Imq3R.
{"copyright_id":"0x7cdf6f3a0e0684fdfb01a2ff07acf98dd61ec31354943175a9ff44c473d4fa18","isrc":"DEU672001197","name":"Anywhere In The World","registered_at":"2026-06-22T04:04:44Z","spotify_id":"4VSMYGMnWqDgDl5uQSl09g","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cdf6f3a0e0684fdfb01a2ff07acf98dd61ec31354943175a9ff44c473d4fa18. 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/4VSMYGMnWqDgDl5uQSl09g.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/4VSMYGMnWqDgDl5uQSl09g.
{"copyright_id":"0x7cdf6f3a0e0684fdfb01a2ff07acf98dd61ec31354943175a9ff44c473d4fa18","isrc":"DEU672001197","name":"Anywhere In The World","registered_at":"2026-06-22T04:04:44Z","spotify_id":"5iPSQYDohyVO5k8Scu2X4L","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cdf6f3a0e0684fdfb01a2ff07acf98dd61ec31354943175a9ff44c473d4fa18. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5iPSQYDohyVO5k8Scu2X4L.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/5iPSQYDohyVO5k8Scu2X4L.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5beb4992f6e0406382884b4d87d923480d71d8b387b2561d549c7e3f59c6e214. 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/7G9fbcNJeCHCCC7mOXqK6H.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/7G9fbcNJeCHCCC7mOXqK6H.
{"copyright_id":"0xe24722237ae49a76cf115e2ce7a615b4e7336cb83abe577d2e6ce2e099f28c00","isrc":"GBCFB1500115","name":"The Clown - Axel Boman Remix","registered_at":"2026-06-08T11:16:37Z","spotify_id":"06vNFYTxJUZUBw7TotVGhe","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe24722237ae49a76cf115e2ce7a615b4e7336cb83abe577d2e6ce2e099f28c00. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/06vNFYTxJUZUBw7TotVGhe.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/06vNFYTxJUZUBw7TotVGhe.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc75dd8eec336bdbf88a9f41295084d4b4fb370c32237e3cfc34f12c3653359fa. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3M0MLNT2rLWo4dIx7kXsuJ.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/3M0MLNT2rLWo4dIx7kXsuJ.
{"copyright_id":"0xb1d4975104b5fb49c3fe55ed3006bf4272390657b29af6324bec8ff2bd5c44ef","isrc":"ES70G2300028","name":"Madhouse Dub","registered_at":"2026-06-23T23:22:21Z","spotify_id":"7uM61tbCjGNPvjBEXKDCIr","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1d4975104b5fb49c3fe55ed3006bf4272390657b29af6324bec8ff2bd5c44ef. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7uM61tbCjGNPvjBEXKDCIr.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/7uM61tbCjGNPvjBEXKDCIr.
{"copyright_id":"0xf2edfd348c906a2e5eee1e7973a1d80ce915a0caab434eb4bb9fb620b7cba3d1","isrc":"ES70G2300031","name":"Flash Forward","registered_at":"2026-06-20T20:57:38Z","spotify_id":"0JU6xf2ek7nsC7rXCROJJq","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2edfd348c906a2e5eee1e7973a1d80ce915a0caab434eb4bb9fb620b7cba3d1. 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/0JU6xf2ek7nsC7rXCROJJq.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/0JU6xf2ek7nsC7rXCROJJq.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x486f19178a994eab5c2dc6a9dd351e8b92e37835a74a79aaac5a0a73ae7e2e06. 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/0ojsnMMHG3ZUbDPOVBst9B.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/0ojsnMMHG3ZUbDPOVBst9B.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73977e67e69dde59b233c555b6e8d200833697cbb05a0fd787393c6f92eed529. 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/6pCs8XzEk49N11ee9i8Hrh.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/6pCs8XzEk49N11ee9i8Hrh.
{"copyright_id":"0xd0dab8daa8ca41ff3563fe981159b183d0b849bd48eaf3ed260364704b057248","isrc":"ES70G2300030","name":"Bosco Bosco (Drums For Life)","registered_at":"2026-06-21T16:08:21Z","spotify_id":"4EQ3FEAFDB7NHhjGXGrVnm","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0dab8daa8ca41ff3563fe981159b183d0b849bd48eaf3ed260364704b057248. 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/4EQ3FEAFDB7NHhjGXGrVnm.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/4EQ3FEAFDB7NHhjGXGrVnm.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f7003e7665fc406573c40b92c5b4baad053a7ee94ae9e9a9b3aa8e5e66ff037. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0DU8U8WeOF2MDoD32ksNxR.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/0DU8U8WeOF2MDoD32ksNxR.
{"copyright_id":"0x9e8ebd0bcd59b1eee4d36cfc24bc2fea5f1d22aefb8a1d446a864fa6073ddfba","isrc":"SE2WJ1400702","name":"Sideral (Matt Karmil Remix)","registered_at":"2026-06-27T21:13:45Z","spotify_id":"4hkIJuXRzajuRLhKkDeXNx","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e8ebd0bcd59b1eee4d36cfc24bc2fea5f1d22aefb8a1d446a864fa6073ddfba. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4hkIJuXRzajuRLhKkDeXNx.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/4hkIJuXRzajuRLhKkDeXNx.
{"copyright_id":"0xfb270b089bbf94867ce7823ad05aaf3adb18a1077d6d9d90d8ace41476c3ade1","isrc":"SE2WJ1400703","name":"Sideral (BCN Version)","registered_at":"2026-06-19T19:44:31Z","spotify_id":"3ax0uzWCeeexskEhwrFNZJ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb270b089bbf94867ce7823ad05aaf3adb18a1077d6d9d90d8ace41476c3ade1. 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/3ax0uzWCeeexskEhwrFNZJ.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/3ax0uzWCeeexskEhwrFNZJ.