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 0x4c92c7210b1a25b6cfcdeae5f35873cc77055ff9417f6c195d54826d1eda66b5. 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/2ee513f3-d829-47bd-80d6-4c550d273100.json and https://artists.proofprofile.net/proofs/artist/2ee513f3-d829-47bd-80d6-4c550d273100.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x60a35e16f02243490e7b5b6df729d3ff07db4de92df7e731b572f7a81af7ebbb","isrc":"USRO21400292","name":"Mother Of Lies","registered_at":"2026-06-29T08:38:31Z","spotify_id":"32C3OQ8AwIkMWIcK2DBZhT","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 0x60a35e16f02243490e7b5b6df729d3ff07db4de92df7e731b572f7a81af7ebbb. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/32C3OQ8AwIkMWIcK2DBZhT.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/32C3OQ8AwIkMWIcK2DBZhT.
Everybody’s Talking ‘Bout The All-American
Everybody's Talking 'Bout The All-American
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60a35e16f02243490e7b5b6df729d3ff07db4de92df7e731b572f7a81af7ebbb. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4WF1tzuDkq69JgD1Wk5vs0.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/4WF1tzuDkq69JgD1Wk5vs0.
Holly, Carol, Candy & Joy / Red Bows (For A Blue Girl)
I Can’t Go Anywhere with You (Feat. Bloodshot Bill)
The Mr. Peabody and Sherman Show (Original Soundtrack)
{"copyright_id":"0xe90f05f26bc3f34b30d45a9af2dbfcbbc69553f7286f471fc4042a39bc8f1a0f","isrc":"USDMG1573006","name":"Nothing Takes The Place Of You","registered_at":"2026-06-10T15:43:53Z","spotify_id":"5mUou6NgcZYAHfbNJgNSt3","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe90f05f26bc3f34b30d45a9af2dbfcbbc69553f7286f471fc4042a39bc8f1a0f. 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/5mUou6NgcZYAHfbNJgNSt3.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/5mUou6NgcZYAHfbNJgNSt3.
Nothin' To Do With Your Love ft. J.D. McPherson
{"copyright_id":"0xa1d277916779f7a359df7ccb890b7a5d63a341ae1caca355a14e5cf960643fec","isrc":"QMHFC1800030","name":"Nothin' To Do With Your Love ft. J.D. McPherson","registered_at":"2026-06-17T03:55:25Z","spotify_id":"3XG4BYF2et7rSrOJTOoddC","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1d277916779f7a359df7ccb890b7a5d63a341ae1caca355a14e5cf960643fec. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T20:29:35Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3XG4BYF2et7rSrOJTOoddC.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/3XG4BYF2et7rSrOJTOoddC.