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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a838aace9ad6a3e051e1c3c53313c75d6824c0e243e75683dcae8b181fa9758. Chain 2 (Bitcoin): anchored in block 953885 (2026-06-16T04:12:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0b5095b9-46a5-4ffa-9147-7ff39fe6a40e.json and https://artists.proofprofile.net/proofs/artist/0b5095b9-46a5-4ffa-9147-7ff39fe6a40e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Feels Good (Yeah!) - Kelly G. Little Louie Party Mix (Mixed)
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedb66d608fb8f5c31b3ae4ba1b323a17f2e3e0ba8d9c5b4f623e6e8f036ae85c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBCPZ1915740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4fda521d9b06ea830217da4aba42f813e85e8b6eef29aaf4e5e02f1583b440a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBCPZ1915741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5a9a51c6743ba853b3e87d410942c6c1d7fcf330baac40f3bffa4ab8fc222c4. 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/GBCPZ1915630.
Swimming Places - Purple Disco Machine Re-Work
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16a6b51c9d8151de3cb7a5de220be0212e759e6c9ff2ab084f9d2dcd85ae33d6. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBCPZ1915274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47593189971bf5c612a2352e1e1cc866cb9028173f8f3ec70409d5a50d250fe7. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBKQU1932728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc509e3c56a7f334961a76fffec9a1ac851f8db3703df1b191f67ac71289377b. 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/GBKQU1862940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ed5dacf825153efa40a35d11c66b50238b1e826871c310c29e9f07ede424d9d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBK6Y1954603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x116e2e6ad6e6258efaa2202ed57489718d31ab6bed08b4cfc7f68567ae2a680c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBK6Y1954616.
Defected Radio Episode 150 (hosted by Sam Divine)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69a657bf98307f87507235ac6271ee6e0bfdb6a87279e4df035580f6a407944e. 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/GBLV62040474.
Groove Machine - Alvaro Smart Remix Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed15609a2c4691be877d0f889988bdec64ecc19a5cd79c6ddfdc31dafd09b126. 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/GBLV62040476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa889b708af059d38fcc498bde7b5f322ffade199b379a624d83abcb384cfd13. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ES94G1609002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f2ea2b65bcc6c435b593ca28fbdb4528fcfcd7c23c3a0a9c09e47fbb922a083. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ES94G1609003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x827d749fd96582b11832d010712d1f4521ec944bb84980a585ace664f263e356. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ES94G1609014.
Cr2 Live & Direct - The Sound of House (September)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3c086204e6546435fe6966ce0ddf542a10213f6b1baf3376b0b73be6d015701. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBHAD1600131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd90c6326cdd43d5d9022f616928626a069c432369020d81abd50af222b8bcdcf. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBHAD1600089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b12380f95d105235b822530d64899a4c46a884cb27e90d2f16bbc0f154dd39e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBHAD1600084.