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 0xce897a1404b0c1aed918e449ef805d9b37b2a561f38852b68839e82e1d6ea366. 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/6d00d21b-70ff-42e4-9ff9-0306a26fcf61.json and https://artists.proofprofile.net/proofs/artist/6d00d21b-70ff-42e4-9ff9-0306a26fcf61.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xce1f9ebe83d6964f984f91ef4103ccd8c3cbce33f3cbd71725dd0b3ec1e16036","isrc":"USCGH0807869","name":"The Same Thing It Took To Get Her","registered_at":"2026-06-23T08:56:38Z","spotify_id":"6cdWXYQ6cKAGf4sgkG9ou1","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 0xce1f9ebe83d6964f984f91ef4103ccd8c3cbce33f3cbd71725dd0b3ec1e16036. 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/6cdWXYQ6cKAGf4sgkG9ou1.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/6cdWXYQ6cKAGf4sgkG9ou1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc080dedb6679e2417e5c93515868c7c4c25985892a8645dc2bfb157d7219fe80. 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/7rfiY70iHJfHtPh8BqIQ8D.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/7rfiY70iHJfHtPh8BqIQ8D.
{"copyright_id":"0xb56aa613fd8eedb4fdcdd34a7622d55772374c94847fec66a6ec4f6c8d956e1e","isrc":"USCGH0807871","name":"You Got To Roll It Slow","registered_at":"2026-06-19T13:50:17Z","spotify_id":"6eONB9gLo21cqcKG1FXyCu","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb56aa613fd8eedb4fdcdd34a7622d55772374c94847fec66a6ec4f6c8d956e1e. 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/6eONB9gLo21cqcKG1FXyCu.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/6eONB9gLo21cqcKG1FXyCu.
{"copyright_id":"0xcec8f3e722c43848f7283feab85f2ec49c820572e22cdb8b3ee45011aa2c7a72","isrc":"USCGH0807874","name":"Trials And Tribulations","registered_at":"2026-06-24T16:42:32Z","spotify_id":"48JYsNZcmM8KCeqOgcKn86","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcec8f3e722c43848f7283feab85f2ec49c820572e22cdb8b3ee45011aa2c7a72. 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/48JYsNZcmM8KCeqOgcKn86.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/48JYsNZcmM8KCeqOgcKn86.
Thank You For Holding On - Feat. Latocha Scott
{"copyright_id":"0xdcb298ce8906e72e6b197d4a45245508bbbe175144c4c352152260622d3d1871","isrc":"USHM20733092","name":"Thank You For Holding On - Feat. Latocha Scott","registered_at":"2026-06-29T12:18:15Z","spotify_id":"1tPj5PrMvLL3EEmzHIhNMU","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcb298ce8906e72e6b197d4a45245508bbbe175144c4c352152260622d3d1871. 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/1tPj5PrMvLL3EEmzHIhNMU.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/1tPj5PrMvLL3EEmzHIhNMU.
The Best of Sir Charles Jones - For Your Love
{"copyright_id":"0x36b9bbf6f25fe8271a19123ef807c498bcaf88cfaf412bacd55cff8cf5a1c7f3","isrc":"US3U50711112","name":"Never Let You Go","registered_at":"2026-06-29T12:13:40Z","spotify_id":"4K9yk92DrDKHQBuLp0OyKN","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36b9bbf6f25fe8271a19123ef807c498bcaf88cfaf412bacd55cff8cf5a1c7f3. 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/4K9yk92DrDKHQBuLp0OyKN.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/4K9yk92DrDKHQBuLp0OyKN.
{"copyright_id":"0x32fd28ad95e4b89fcd8cbb29a44ff73a3a1390738e8dd075a7a11f9c246e65c4","isrc":"US3U50400312","name":"I Wish he Didn't Trust Me So Much","registered_at":"2026-06-29T12:18:42Z","spotify_id":"07JcFKAK1fAzYxAWPaw3O6","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32fd28ad95e4b89fcd8cbb29a44ff73a3a1390738e8dd075a7a11f9c246e65c4. 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/07JcFKAK1fAzYxAWPaw3O6.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/07JcFKAK1fAzYxAWPaw3O6.
{"copyright_id":"0x32fd28ad95e4b89fcd8cbb29a44ff73a3a1390738e8dd075a7a11f9c246e65c4","isrc":"US3U50400312","name":"I Wish He Didn't Trust Me So Much","registered_at":"2026-06-29T12:18:42Z","spotify_id":"0m29h8MqXaxtHWu63x2Dgm","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32fd28ad95e4b89fcd8cbb29a44ff73a3a1390738e8dd075a7a11f9c246e65c4. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0m29h8MqXaxtHWu63x2Dgm.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/0m29h8MqXaxtHWu63x2Dgm.
{"copyright_id":"0xfebce060cd4465053f43e29049baee586ecc0a9fa24041f88705b47eda767732","isrc":"US3U50400300","name":"Tell Me How You Want It","registered_at":"2026-06-28T19:14:37Z","spotify_id":"0zCv83fAML16uJzwPclFIC","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfebce060cd4465053f43e29049baee586ecc0a9fa24041f88705b47eda767732. 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/0zCv83fAML16uJzwPclFIC.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/0zCv83fAML16uJzwPclFIC.
{"copyright_id":"0xa4639fa1e5df5a56f368626181266907a754dcdabc2a7bf564195ab5eb750a32","isrc":"US6YC1902605","name":"Just Hang Tonight","registered_at":"2026-06-29T12:17:23Z","spotify_id":"3OtxQwzIwzBvNeRvPrw2HW","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4639fa1e5df5a56f368626181266907a754dcdabc2a7bf564195ab5eb750a32. 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/3OtxQwzIwzBvNeRvPrw2HW.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/3OtxQwzIwzBvNeRvPrw2HW.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4ddd76e913af9e2fd091db34e15194ad6d2f2e4b7a73f239e07c6cf3944663. 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/5Uy19hv8D03YqdiLsX1Xva.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/5Uy19hv8D03YqdiLsX1Xva.
{"copyright_id":"0xd208ad3d3224e6ed1390704caec2316def60c178fd6776ea7d07cc93aa37ac91","isrc":"QZK6M2483389","name":"Up In That Mood","registered_at":"2026-06-08T20:11:09Z","spotify_id":"5H1jbcxEqHGLIn0qCxc1eR","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd208ad3d3224e6ed1390704caec2316def60c178fd6776ea7d07cc93aa37ac91. 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/5H1jbcxEqHGLIn0qCxc1eR.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/5H1jbcxEqHGLIn0qCxc1eR.