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 0x57b7247d24fb3202c99e673b7c957fb6e3f8edbd890a57f2715758eafea27692. 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/4458c1a9-e905-4b1a-b1c1-c3787a953dcc.json and https://artists.proofprofile.net/proofs/artist/4458c1a9-e905-4b1a-b1c1-c3787a953dcc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Red Hook (Live At The Jazz Standard, New York / 2017)
Red Hook - Live At The Jazz Standard, New York / 2017
Mild - Live At The Jazz Standard, New York / 2017
Bay Of Rainbows (Live At The Jazz Standard, New York / 2017)
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 0x77192599e4a062a9371226d3d034b85292cd2c0ce165bde0d60484bbac202833. 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/35HP0DdVN7uA92UPAmbAGU.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/35HP0DdVN7uA92UPAmbAGU.
{"copyright_id":"0xabc2e36754d5b66116ece1f792718b6774de39f14be091e28b27e53a22c545b6","isrc":"DEB331661802","name":"Red Hook - Live At The Jazz Standard, New York / 2017","registered_at":"2026-06-18T03:41:08Z","spotify_id":"6GZ5LgI8dM3Ynj7J05kANS","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabc2e36754d5b66116ece1f792718b6774de39f14be091e28b27e53a22c545b6. 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/6GZ5LgI8dM3Ynj7J05kANS.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/6GZ5LgI8dM3Ynj7J05kANS.
Copenhagen - Live At The Jazz Standard, New York / 2017
{"copyright_id":"0xbe5fe9d0a5dcaf68563c9dc1f1e8ea401e12692f0f983a8d0378e56ff5b662be","isrc":"DEB331661803","name":"Copenhagen - Live At The Jazz Standard, New York / 2017","registered_at":"2026-06-19T14:54:51Z","spotify_id":"3hCLHyjrMx34T8Esmkp7zf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe5fe9d0a5dcaf68563c9dc1f1e8ea401e12692f0f983a8d0378e56ff5b662be. 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/3hCLHyjrMx34T8Esmkp7zf.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/3hCLHyjrMx34T8Esmkp7zf.
Dug - Live At The Jazz Standard, New York / 2017
Evening Song - Live At The Jazz Standard, New York / 2017
{"copyright_id":"0x1eaafd566c8db4f3652a8fa76cccf5b96e6df07d6197920455940cbbf1292a8a","isrc":"DEB331661805","name":"Evening Song - Live At The Jazz Standard, New York / 2017","registered_at":"2026-06-25T09:12:27Z","spotify_id":"2CoDMiE45b6csTqt2iAO7T","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eaafd566c8db4f3652a8fa76cccf5b96e6df07d6197920455940cbbf1292a8a. 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/2CoDMiE45b6csTqt2iAO7T.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/2CoDMiE45b6csTqt2iAO7T.
Mild - Var. / Live At The Jazz Standard, New York / 2017
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e29050460cb63bdd81f775fa1fa6801a72f8c0d7260efe0c03928c5fe980746. 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/0SXXnzrANk098QAJMBLsDJ.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/0SXXnzrANk098QAJMBLsDJ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eef782af12544b73638c1a6050cdad67d14592002be38828d017709a2a65ef4. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0LTyQGBfOBFCWZsCGu0Uny.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/0LTyQGBfOBFCWZsCGu0Uny.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c49f39702d4391641dfd7dcd009240c7b18d78fd20fa8d5b9ac0726029f51fd. 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/3LOIcdNafNUd4vkBJUB20L.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/3LOIcdNafNUd4vkBJUB20L.
{"copyright_id":"0xc1ca0fdd3af605d0cdd8e027fdfface133c2ac929d9d3fa49fc709d1ff927a1c","isrc":"DEB331549904","name":"Full Moon Europa","registered_at":"2026-06-27T09:47:10Z","spotify_id":"3O3RghfhPz44e3FrPE0ZOp","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ca0fdd3af605d0cdd8e027fdfface133c2ac929d9d3fa49fc709d1ff927a1c. 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/3O3RghfhPz44e3FrPE0ZOp.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/3O3RghfhPz44e3FrPE0ZOp.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54664fb25c6113a12d13baef49506c5883424250ce834cf07e19d130050b2c0d. 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/0ZqyAhjrCATDSi1QvbVyPH.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/0ZqyAhjrCATDSi1QvbVyPH.
{"copyright_id":"0x4fe23313269fff8229e24dbd9e519ee59c87b77a72dcdc8b838d239a4e8c4900","isrc":"DEB331549906","name":"Heroines - Variation","registered_at":"2026-06-07T02:05:35Z","spotify_id":"0rQfXqVO6UruOdtCGx0gNI","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe23313269fff8229e24dbd9e519ee59c87b77a72dcdc8b838d239a4e8c4900. 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/0rQfXqVO6UruOdtCGx0gNI.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/0rQfXqVO6UruOdtCGx0gNI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd475282a1a5f3fada8ce54793a57846797b830865d9a6c2e31b3740629ae6ab2. 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/2lwbj2Q6TIEkLNhdVNZXWY.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/2lwbj2Q6TIEkLNhdVNZXWY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a8ff2bf5c04a3046cf719e7fc7e92b2a712e6ccc77310debfd6fef06af1c50b. 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/2Dl2qdJ8I5QfOMfi6AlNvJ.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/2Dl2qdJ8I5QfOMfi6AlNvJ.
And They All Came Marching Out Of The Woods
{"copyright_id":"0x00d591e14b8722e16739ae1310fa5727af82733fe9a056ca02716c629d1d8af4","isrc":"DEB331338103","name":"And They All Came Marching Out Of The Woods","registered_at":"2026-06-18T03:42:00Z","spotify_id":"6jBw9vdYnh6iO1ufKaBkYw","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00d591e14b8722e16739ae1310fa5727af82733fe9a056ca02716c629d1d8af4. 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/6jBw9vdYnh6iO1ufKaBkYw.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/6jBw9vdYnh6iO1ufKaBkYw.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0adca08334ff359dacd44911084d520161b0307b5e07e7ebbec9a6a26b756241. 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/74zwnaYJ0IUPIk24n8k9JP.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/74zwnaYJ0IUPIk24n8k9JP.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9bc494d9b0e626f600ac218795440ec451d86c814038d0086d2325acd4fa452. 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/3Ex9d18dywAHyaRvq3hWK3.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/3Ex9d18dywAHyaRvq3hWK3.