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 0x9ed9a9e61c2d69594e3269e39c33613433a6581997a1c1a31fb809f02c72deea. 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/7a429a90-5a57-473f-a15b-d994c37bcb8f.json and https://artists.proofprofile.net/proofs/artist/7a429a90-5a57-473f-a15b-d994c37bcb8f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ray Charles (aka: Hallelujah, I Love Her So)
{"copyright_id":"0x9a07ff52e9dd454aab81fecbd7bda990a9312c89b5c0468f78e7afb27fff97d4","isrc":"USAT29902168","name":"Drown in My Own Tears","registered_at":"2026-06-04T10:14:11Z","spotify_id":"0oQtjAjUeksVd9gHE5fl02","type":"track"}
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 0x9a07ff52e9dd454aab81fecbd7bda990a9312c89b5c0468f78e7afb27fff97d4. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0oQtjAjUeksVd9gHE5fl02.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/0oQtjAjUeksVd9gHE5fl02.
{"copyright_id":"0x7f54e5cbc9cece7d3e0ad7618c682fdc980779724290985b39a84e18e5cf5e46","isrc":"USAT20403880","name":"Funny (But I Still Love You)","registered_at":"2026-06-07T17:55:39Z","spotify_id":"7u17w29WWTiftzGHs8rhpw","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f54e5cbc9cece7d3e0ad7618c682fdc980779724290985b39a84e18e5cf5e46. 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/7u17w29WWTiftzGHs8rhpw.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/7u17w29WWTiftzGHs8rhpw.
{"copyright_id":"0xb80f445fb3fdedf4d7bd0c872024da1b76d7861ab7d1a15c4f70c908b2bf8bbe","isrc":"USAT29902163","name":"A Fool for You","registered_at":"2026-06-05T20:58:11Z","spotify_id":"7uMb8RUN7S0bXdWXpI2euL","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb80f445fb3fdedf4d7bd0c872024da1b76d7861ab7d1a15c4f70c908b2bf8bbe. 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/7uMb8RUN7S0bXdWXpI2euL.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/7uMb8RUN7S0bXdWXpI2euL.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c302c00428e0ff3bb5a7d8c41070e40db1825ab2516356c2aab13c9aea798e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5P11rW6aJErF37MTfRZS31.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/5P11rW6aJErF37MTfRZS31.
{"copyright_id":"0x0cb0de69f8e4c5681a1b0ede5b6b7492798d078df84f6ecae2fdf7eba6b68129","isrc":"USAT20000332","name":"Mess Around","registered_at":"2026-06-01T21:06:31Z","spotify_id":"7DJsL4jyXA39GDiHFQYQ0t","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cb0de69f8e4c5681a1b0ede5b6b7492798d078df84f6ecae2fdf7eba6b68129. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7DJsL4jyXA39GDiHFQYQ0t.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/7DJsL4jyXA39GDiHFQYQ0t.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e4ae05028592e30599b2abcabc19745c065953c19afd7f857463fd48535873b. 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/3QoFJiEWJ0LnDwch93MdZf.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/3QoFJiEWJ0LnDwch93MdZf.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe099f92287edbe23a3977b04359a7a68b3b86dc16e580dd6455c7385ee51a00a. 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/3AKFoX3dp7EIcUIDZufDw1.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/3AKFoX3dp7EIcUIDZufDw1.
{"copyright_id":"0x4fb2bf6c70bcb1aa615ead915f683de6ec46ea208f4d25c744d6dcede61056b8","isrc":"USAT20102459","name":"The Right Time","registered_at":"2026-06-07T10:37:38Z","spotify_id":"6sHJMWuMmke106NW0Qus3H","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb2bf6c70bcb1aa615ead915f683de6ec46ea208f4d25c744d6dcede61056b8. 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/6sHJMWuMmke106NW0Qus3H.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/6sHJMWuMmke106NW0Qus3H.
Shake a Tail Feather (feat. Ray Charles)
The Blues Brothers Original Motion Picture Soundtrack
{"copyright_id":"0x6e574c528709663c5fcfa1833bb7c4011efa22c948c1641b35aaf1bb23cb4253","isrc":"USAT29200096","name":"Shake a Tail Feather (feat. Ray Charles)","registered_at":"2026-06-04T07:10:16Z","spotify_id":"4L2laOh04x7g7WjEtY8PkZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e574c528709663c5fcfa1833bb7c4011efa22c948c1641b35aaf1bb23cb4253. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4L2laOh04x7g7WjEtY8PkZ.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/4L2laOh04x7g7WjEtY8PkZ.
Playin' With My Friends: Bennett Sings The Blues
{"copyright_id":"0xb82d4d002cb40147b776bd4cdb419768d7307e5910a7268a45bd16dffa645c98","isrc":"USSM10109525","name":"Evenin' (with Ray Charles)","registered_at":"2026-06-04T16:11:13Z","spotify_id":"3BYcF3H1qbzBPkuhXNbC9z","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb82d4d002cb40147b776bd4cdb419768d7307e5910a7268a45bd16dffa645c98. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3BYcF3H1qbzBPkuhXNbC9z.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/3BYcF3H1qbzBPkuhXNbC9z.
{"copyright_id":"0xd34fe6a2b62a13f11d889c30634ce3b3674190b1d90266f918ad031aa792d1a2","isrc":"USSM19804312","name":"Cryin' Time (feat. Ray Charles)","registered_at":"2026-06-05T16:03:08Z","spotify_id":"7ukKSwsBuk85fJeHTSKfMw","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd34fe6a2b62a13f11d889c30634ce3b3674190b1d90266f918ad031aa792d1a2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7ukKSwsBuk85fJeHTSKfMw.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/7ukKSwsBuk85fJeHTSKfMw.
Country Music - A Film by Ken Burns (The Soundtrack) [Deluxe]
{"copyright_id":"0x36795111daf32719df69009bf12d52b5d5d686d0953aae0f3f8afa1b1edac2ed","isrc":"USC4R0614029","name":"I Can't Stop Loving You","registered_at":"2026-06-19T08:44:02Z","spotify_id":"75jSiCVrBvAEqOndUmcy79","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36795111daf32719df69009bf12d52b5d5d686d0953aae0f3f8afa1b1edac2ed. 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/75jSiCVrBvAEqOndUmcy79.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/75jSiCVrBvAEqOndUmcy79.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eeccc1a8fd72550c4c664c6781eaca45c686c50000bfa0171efe97e2d65ca21. 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/2YWXW4zVg0e0UDODAJddbz.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/2YWXW4zVg0e0UDODAJddbz.
{"copyright_id":"0x567e027c00f3065f5b3991bcbf2be23d9e3da37bcca9a639ec92b8559d26bdae","isrc":"USAT20104253","name":"How Long Blues","registered_at":"2026-06-26T20:36:40Z","spotify_id":"565tT41OOoYIdETJWZBEst","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x567e027c00f3065f5b3991bcbf2be23d9e3da37bcca9a639ec92b8559d26bdae. 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/565tT41OOoYIdETJWZBEst.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/565tT41OOoYIdETJWZBEst.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff9f1ca32a2faa91890865622e3373924152fc555892a84b45159649b18a0fc. 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/5E0D4thyS428r6qz2U1LkM.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/5E0D4thyS428r6qz2U1LkM.
{"copyright_id":"0x5df9b4a7a5f589db22b34a0dd5d9c91929ea36a6f4271e7cf11e5e4510bce825","isrc":"GBF076922620","name":"What'd I Say - Stereo","registered_at":"2026-06-10T15:06:18Z","spotify_id":"7LOEXHDgVY3jpDbTJFLi2A","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df9b4a7a5f589db22b34a0dd5d9c91929ea36a6f4271e7cf11e5e4510bce825. 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/7LOEXHDgVY3jpDbTJFLi2A.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/7LOEXHDgVY3jpDbTJFLi2A.
California Cool Club Blues. The Ultimate Chill Out