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 0x1c7cd3d31a98d89933366f2da05ea997ce75dccb0ab49c1d2b9fa1d8ca6d49c6. 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/9c4c1f48-a08e-4355-a3d2-5c2d9c92324b.json and https://artists.proofprofile.net/proofs/artist/9c4c1f48-a08e-4355-a3d2-5c2d9c92324b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xeaccd95a1de45f12e6bba0500e89d20faa465dc30800b577166169987f1a17d5. 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/5CPU6T60J0pUBjmIAHEeGT.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/5CPU6T60J0pUBjmIAHEeGT.
{"copyright_id":"0x2cae4d70ef08123f4f982d2a84469f258fd89379b99650e2ad765a16eb1c6ede","isrc":"USUYG1448660","name":"Mama I Made It","registered_at":"2026-06-28T21:42:40Z","spotify_id":"1S3GfaCHCtLajfFXvmxueH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cae4d70ef08123f4f982d2a84469f258fd89379b99650e2ad765a16eb1c6ede. 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/1S3GfaCHCtLajfFXvmxueH.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/1S3GfaCHCtLajfFXvmxueH.
NANA (feat. Joeboy, King Promise & BIEN) [Remix]
{"copyright_id":"0xe78f18e8949eb6aecabe15a2f97dcc26f903a7eee75cc2042585b677b9e74d98","isrc":"GBX722400098","name":"Dalilah II","registered_at":"2026-06-04T16:14:33Z","spotify_id":"3pU5thrIWedorXzDa3gOjb","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe78f18e8949eb6aecabe15a2f97dcc26f903a7eee75cc2042585b677b9e74d98. 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/3pU5thrIWedorXzDa3gOjb.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/3pU5thrIWedorXzDa3gOjb.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe78f18e8949eb6aecabe15a2f97dcc26f903a7eee75cc2042585b677b9e74d98. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/349uWc5vDa9jW3Chdi4Svs.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/349uWc5vDa9jW3Chdi4Svs.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8858bda65f11f8cf23996a9a5f37b7dbbb29294a05f5acfdda83e01842d1685. 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/0zX4r58gO2FJogL3CmFeTp.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/0zX4r58gO2FJogL3CmFeTp.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9401f1d71f15a6bff1b31df1c572034b8de45c86f07e9fe51684dffcf7cd7440. 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/70TAqduhxQbBNES6X4Awqo.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/70TAqduhxQbBNES6X4Awqo.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xede1e64785a1e46b7fde3cce4618f5ea6d9d4800e1928435ed7fac04e60f5566. 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/7oRGpx2deUY4ExFd0scHE5.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/7oRGpx2deUY4ExFd0scHE5.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c1aad996d87d236ad5164a648ef19f4e6d3c978ca6c3d80a97cc7737a18c32. 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/7HRcTN24O14B1l871d3tHi.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/7HRcTN24O14B1l871d3tHi.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6099f4d61131e518b7596edbbd6e6c53d540a79608a52ff6c802dbda94285b1. 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/5P9bQprRElMzM4R16tbf2M.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/5P9bQprRElMzM4R16tbf2M.
No Bad Vibes (with Gyakie & Joshua Baraka)
{"copyright_id":"0x1dbd4dcc1bd199ce005768ed87e8dda11e8fa3f9160e3fb43be21e07a87d1f58","isrc":"GBUM72500516","name":"No Bad Vibes (with Gyakie & Joshua Baraka)","registered_at":"2026-06-04T09:34:54Z","spotify_id":"0YieNuEXngayosZN9sMmj7","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dbd4dcc1bd199ce005768ed87e8dda11e8fa3f9160e3fb43be21e07a87d1f58. 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/0YieNuEXngayosZN9sMmj7.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/0YieNuEXngayosZN9sMmj7.
{"copyright_id":"0x97c1aad996d87d236ad5164a648ef19f4e6d3c978ca6c3d80a97cc7737a18c32","isrc":"QZNJX2483536","name":"Touch Me","registered_at":"2026-06-05T22:06:45Z","spotify_id":"4bxiFjdKsmUpOjDz8ILsuD","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c1aad996d87d236ad5164a648ef19f4e6d3c978ca6c3d80a97cc7737a18c32. 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/4bxiFjdKsmUpOjDz8ILsuD.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/4bxiFjdKsmUpOjDz8ILsuD.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab8ac7acf120348883e834efd9133be620fa38902bdd2c740d33114c3ed4036c. 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/6IvR8gFYiz6weUbDF1t0Fq.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/6IvR8gFYiz6weUbDF1t0Fq.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b663827b5e17aa80a5fdb252f9ef5c241f19257ae4a5b938459572c001dfbb1. 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/3uLZ8bxU5UOBrQuFBhKN04.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/3uLZ8bxU5UOBrQuFBhKN04.