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 0x459207cf05619a84ca2afe2701f875f78546c420ea796011471061f97d22b4a7. 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/62eb768c-2339-4ee1-980f-a3fcd3a815ed.json and https://artists.proofprofile.net/proofs/artist/62eb768c-2339-4ee1-980f-a3fcd3a815ed.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Summer Rain - Re-Recorded - Instrumental
Bad Boy's Been Around the World - Remix; feat. Mase & Carl Thomas; 2016 Remaster
Bad Boy 20th Anniversary Box Set Edition
{"copyright_id":"0x2733a3d0127c2ca7c612b09d0f8c55b336c1dfdf38d7b5664f67616a282b1c52","isrc":"USRH11603440","name":"Bad Boy's Been Around the World - Remix; feat. Mase & Carl Thomas; 2016 Remaster","registered_at":"2026-06-07T06:26:54Z","spotify_id":"3WHBKG35UDuNFjPYe7K8FF","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 0x2733a3d0127c2ca7c612b09d0f8c55b336c1dfdf38d7b5664f67616a282b1c52. 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/3WHBKG35UDuNFjPYe7K8FF.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/3WHBKG35UDuNFjPYe7K8FF.
Let's Start Rap Over (feat. Carl Thomas)
{"copyright_id":"0x909fe875ec34c4581c53b6a0f594ef2913517ba1caf7f1490015e5634f465c3d","isrc":"USBB40580970","name":"Let's Start Rap Over (feat. Carl Thomas)","registered_at":"2026-06-08T03:06:00Z","spotify_id":"6Y7Lu6fgtlC8cfRcN0K52w","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x909fe875ec34c4581c53b6a0f594ef2913517ba1caf7f1490015e5634f465c3d. 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/6Y7Lu6fgtlC8cfRcN0K52w.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/6Y7Lu6fgtlC8cfRcN0K52w.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ee9056d4ff4c091f724d02d0fd644b0e85c6b2705345d7a43329925ea2af0b. 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/4ybHzmPdzHtutc2gDVrQve.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/4ybHzmPdzHtutc2gDVrQve.
{"copyright_id":"0x0d890fb5b5459a367fa7dffcb29842ddb7bbda5315cb36e21aed29480d17be0d","isrc":"USBB40580241","name":"Press Rewind (feat. Carl Thomas)","registered_at":"2026-06-11T04:31:25Z","spotify_id":"5vdI4m0xzAclcDIaLGnKHY","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d890fb5b5459a367fa7dffcb29842ddb7bbda5315cb36e21aed29480d17be0d. 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/5vdI4m0xzAclcDIaLGnKHY.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/5vdI4m0xzAclcDIaLGnKHY.
Can't Believe (feat. Carl Thomas & Shyne) - 2016 Remaster
{"copyright_id":"0x5fa9bf1da739c2820731939444c110d0891aae488f8bed50485e782c62acfdf9","isrc":"USRH11603444","name":"Can't Believe (feat. Carl Thomas & Shyne) - 2016 Remaster","registered_at":"2026-06-19T07:58:27Z","spotify_id":"5KvkALRbJyl5LOgGeINdHu","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fa9bf1da739c2820731939444c110d0891aae488f8bed50485e782c62acfdf9. 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/5KvkALRbJyl5LOgGeINdHu.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/5KvkALRbJyl5LOgGeINdHu.
The Struggle Will Be Lost (feat. Carl Thomas)
{"copyright_id":"0xcc498885d9b3a7eca0835b24cf0f8cd5410b9c14daaacee4ee276afc07cee318","isrc":"USJAY0200455","name":"The Struggle Will Be Lost (feat. Carl Thomas)","registered_at":"2026-06-24T08:04:10Z","spotify_id":"3saeEjjRxKqkjjHEGZZxjB","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc498885d9b3a7eca0835b24cf0f8cd5410b9c14daaacee4ee276afc07cee318. 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/3saeEjjRxKqkjjHEGZZxjB.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/3saeEjjRxKqkjjHEGZZxjB.
{"copyright_id":"0xfcbd874ca1a315c78604cdcd65e3d3b131f8b68ccc8b35175bf65c24ba66cde5","isrc":"USRH11603417","name":"Emotional - 2016 Remaster","registered_at":"2026-06-25T15:46:49Z","spotify_id":"2cWEVyBG4voN2Wrx94oF6M","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcbd874ca1a315c78604cdcd65e3d3b131f8b68ccc8b35175bf65c24ba66cde5. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2cWEVyBG4voN2Wrx94oF6M.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/2cWEVyBG4voN2Wrx94oF6M.
{"copyright_id":"0xbd3ee51db60c9e212a2d06cf3320bcdf20289c3f89c6702899e02a08c04d7c39","isrc":"USBB40580271","name":"It's All Over (feat. Carl Thomas)","registered_at":"2026-06-24T12:42:32Z","spotify_id":"1axGka5ZuT86wHxx9hjPuJ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd3ee51db60c9e212a2d06cf3320bcdf20289c3f89c6702899e02a08c04d7c39. 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/1axGka5ZuT86wHxx9hjPuJ.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/1axGka5ZuT86wHxx9hjPuJ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x655133314522fa1c0fb1cb890688402ffea1248dc67b15420782c6df401b8805. 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/1NK1GLMbK4jOAJfxS6fkYv.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/1NK1GLMbK4jOAJfxS6fkYv.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65f11259890edda54e7db35e4b8c9b8070abc0d31ac8554360b83bae91756104. 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/6ML7LPoNN1MuznvmbngR2s.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/6ML7LPoNN1MuznvmbngR2s.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1493b30fc518d9bd52270a4dcf76dbe9fe873742b9046b78c77852090078806f. 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/17A4bio1f2zxlLbuzURcnr.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/17A4bio1f2zxlLbuzURcnr.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee14ec3f7ba36ce3ab1231cad72b799657f40f49576ade2750fe85b1f567e587. 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/3D6dW1HJ9AUXX7RA7WrYQs.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/3D6dW1HJ9AUXX7RA7WrYQs.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ba6bdc56338e57408053bc8b6b834b090355e34bda8c75e836629078041b478. 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/5lBtERzg8tgFfLExZTl7Bz.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/5lBtERzg8tgFfLExZTl7Bz.