1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf38b290adad3006e8aec9d2838fc46d96d871c8e43be73c714204ae9dbdd148a. Chain 2 (Bitcoin): anchored in block 953694 (2026-06-14T21:38:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6c2c4e6e-8c8b-46a7-bffb-dab2bec161f7.json and https://artists.proofprofile.net/proofs/artist/6c2c4e6e-8c8b-46a7-bffb-dab2bec161f7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2afe2f0252f781c4c2054adc421cd147b4638158dea5fec67386c37b904c20f9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPJ1939454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9220e1a20a761bd5fbc143f5cd1aa33b8e76090efd8ea4db14f30a8f8524164. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITHZ02400506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bbf692bdfca23c6db7a06bf02cf329e1d056908c58613908d2fd1a32d297a85. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITJ872400472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd96a800eaa605d35caf026aaf9ca9b0a0fb57496a1f1f0194ef6f7cb254ac81c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKQU2487651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2a06a455ea6710356c32a7840955590b92d3a1de1b0ce8f89a1e85a3381a586. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITJ872400323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea1ec0227430225dc09e3d0ae8f7e500ac599f58f9c70db9116569b9ea995356. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITJ872300571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffcd4efd8d331b54dc05ab943d9c24620bf47cb4163795a59f23a5febc636844. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITJ872300335.
Don't Stop The Beat (feat. Sabrina Christian)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe605ca94340407100a44d11d4fe9f7ac178fadee8bd4e7209224a4835010bc15. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPY71500054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9731b6a0ba3b950fb898e73c951dc61b94c64ace2c71653b7810e762907ca05c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITJ872500465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21bc305ec9220f23446caf8bf45d5755e80bf62b7decf42fcc1bf87e89ba826d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITJ872500405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21358e219044c72f0009035b54a4ab0482f9c50a253f3b17460255c6ee88fcd3. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITJ872500393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71eeec24e734c0538db6d44eb0755969ac6f1a81ca3d03a4ace7f0faf9be2daf. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ2515529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x181cd4ecb5a70cf7213b8c65f34fae7e33481d37ec8690612e2669ce55194d96. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITJ872500151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe756ad451fa6eb57a7d684c89455694ac59503976bde0a8960c2b204f88d31f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITJ872500152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc23b8308dda39ed99a421b8a7b87b74c7aa6fb01213300a13bccb0cd637602b. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITHZ02400771.
Compilation Summer Dance Commercial House Songs Top Hits New Best Music 2013 / 2014 (Radio Cut Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc53b0522de1c39a465a48e7a31ca23923b1360f36f268f5f3dafcf99f6f9bbba. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITBD61300972.