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 0x83dc66475043b2d02e15bcdb8a8fa9e9c7a3c015bb1c64fd30236839effbe841. 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/b3338417-1244-4787-8599-bd2c748792ac.json and https://artists.proofprofile.net/proofs/artist/b3338417-1244-4787-8599-bd2c748792ac.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nas, Foxy Brown, AZ, and Nature Present: The Album
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 0xcfef2a6bea66aa627ee4ee31f6e89d7508bc5be227505795bb9f883c6b8cf521. 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/1VY2I0qyT3qIM3JP7qk6uD.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/1VY2I0qyT3qIM3JP7qk6uD.
Full Circle (feat. The Firm, AZ, Foxy Brown & Cormega)
{"copyright_id":"0x3e7887111cada391b775ac80ab67deaa30698911bb03ed3aafb238db9ad272be","isrc":"QM8RL2001085","name":"Full Circle (feat. The Firm, AZ, Foxy Brown & Cormega)","registered_at":"2026-06-05T08:13:15Z","spotify_id":"3bNXPxxnbEoGQxEzS0N9NK","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e7887111cada391b775ac80ab67deaa30698911bb03ed3aafb238db9ad272be. 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/3bNXPxxnbEoGQxEzS0N9NK.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/3bNXPxxnbEoGQxEzS0N9NK.
{"copyright_id":"0xba5801f8f316aeca912ffdcf93a57db8bb7082b70b8e422518565ad80a1ddac3","isrc":"USUYG1390891","name":"99 Avirex (feat. Stove God Cooks & AZ)","registered_at":"2026-06-05T11:14:14Z","spotify_id":"2H6dLS2AJriuAtWvuNjfDA","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba5801f8f316aeca912ffdcf93a57db8bb7082b70b8e422518565ad80a1ddac3. 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/2H6dLS2AJriuAtWvuNjfDA.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/2H6dLS2AJriuAtWvuNjfDA.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f38795a525e668dfebb8a288c3181519b299bd0a0c109c514436c206c7479ff. 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/1JSiVMBXewUcddAQhyJWLz.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/1JSiVMBXewUcddAQhyJWLz.
{"copyright_id":"0xdfef242930a49d4bf1fbbba1bf77e6ec2b7cc88ddbdc845ebf8a64632cace3d9","isrc":"USIR19701513","name":"Firm Fiasco","registered_at":"2026-06-07T06:26:50Z","spotify_id":"7HgVpD2xXmq0pTRY1Qla6c","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfef242930a49d4bf1fbbba1bf77e6ec2b7cc88ddbdc845ebf8a64632cace3d9. 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/7HgVpD2xXmq0pTRY1Qla6c.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/7HgVpD2xXmq0pTRY1Qla6c.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4daab72ad31379fa7daa665e9733cd99747f6ec441cc7143baba20936f8ebf47. 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/6it48DGRcqKtZ3qRESNry9.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/6it48DGRcqKtZ3qRESNry9.
{"copyright_id":"0xe286ac0ebba2cc3d973d9ae6c3f6e4b12cdd8f55eedefbb8af69ee374675d44f","isrc":"USIR19701516","name":"Executive Decision","registered_at":"2026-06-07T18:44:55Z","spotify_id":"3naVGeDJL4AaEELG9uP4vi","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe286ac0ebba2cc3d973d9ae6c3f6e4b12cdd8f55eedefbb8af69ee374675d44f. 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/3naVGeDJL4AaEELG9uP4vi.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/3naVGeDJL4AaEELG9uP4vi.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d7048f0e3cc58cf4f001f50f3b8abd94f70e91c4f86614c0667e18c94fac650. 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/076Vr54R0kNy8WfIcBALnk.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/076Vr54R0kNy8WfIcBALnk.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0c59698ab4824b806d5097f29ebbcc5c9239735b21eb54fd404c8f03b859d81. 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/7aAPBTUseHDEWjc2B31M5q.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/7aAPBTUseHDEWjc2B31M5q.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d7048f0e3cc58cf4f001f50f3b8abd94f70e91c4f86614c0667e18c94fac650. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0gR1VmudNvynHfY60ofjah.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/0gR1VmudNvynHfY60ofjah.
{"copyright_id":"0x3e7887111cada391b775ac80ab67deaa30698911bb03ed3aafb238db9ad272be","isrc":"QM8RL2001085","name":"Full Circle","registered_at":"2026-06-05T08:13:15Z","spotify_id":"3HaYJ1LK6yCTuFX15tHswK","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e7887111cada391b775ac80ab67deaa30698911bb03ed3aafb238db9ad272be. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3HaYJ1LK6yCTuFX15tHswK.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/3HaYJ1LK6yCTuFX15tHswK.
{"copyright_id":"0x3e7887111cada391b775ac80ab67deaa30698911bb03ed3aafb238db9ad272be","isrc":"QM8RL2001085","name":"Full Circle","registered_at":"2026-06-05T08:13:15Z","spotify_id":"6hGISWFCFCnT8rVWGRYekj","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e7887111cada391b775ac80ab67deaa30698911bb03ed3aafb238db9ad272be. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6hGISWFCFCnT8rVWGRYekj.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/6hGISWFCFCnT8rVWGRYekj.
Messin' with You (feat. Joey BadA$$ & AZ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37442523d4931c035ba40f8e5961f0b6a5998a4d6aab6fbf0bdf56a332c0655c. 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/18VXnNJDuPFjv3S3BK81hM.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/18VXnNJDuPFjv3S3BK81hM.
{"copyright_id":"0xdd00a5cfb09e68bb109efc8867386b2b129582b251193549bebd97769c68f1fa","isrc":"USEEZ1006910","name":"No Where To Hide","registered_at":"2026-06-18T00:00:57Z","spotify_id":"59kweXnZCXUr1F4mhsqQFN","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd00a5cfb09e68bb109efc8867386b2b129582b251193549bebd97769c68f1fa. 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/59kweXnZCXUr1F4mhsqQFN.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/59kweXnZCXUr1F4mhsqQFN.
{"copyright_id":"0xfca9f454804fb697e7a64edcd4b1766ee2cfb9f9b326cd36767ce1611bd7d899","isrc":"USUM72209018","name":"Carnival (feat. AZ)","registered_at":"2026-06-06T02:39:19Z","spotify_id":"1yUFXYH1QsjTjqXwc5CvVN","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfca9f454804fb697e7a64edcd4b1766ee2cfb9f9b326cd36767ce1611bd7d899. 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/1yUFXYH1QsjTjqXwc5CvVN.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/1yUFXYH1QsjTjqXwc5CvVN.
{"copyright_id":"0x59d79dedaa586f0846b2ae7cb49cb36311e49ced01370d96aa9a77442bb08dc5","isrc":"QZAKB2360472","name":"How We Get It","registered_at":"2026-06-21T06:09:46Z","spotify_id":"7fUWdT1JMsoN0ZHOD9eXpi","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59d79dedaa586f0846b2ae7cb49cb36311e49ced01370d96aa9a77442bb08dc5. 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/7fUWdT1JMsoN0ZHOD9eXpi.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/7fUWdT1JMsoN0ZHOD9eXpi.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa1a800855ff35912db538a17e1e54abe129ea0a94f31c391b02243fbbb6a762. 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/6nG5mo47I7HdeU1fOUmiDq.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/6nG5mo47I7HdeU1fOUmiDq.