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 0x6456b9f513a3fdd1385d81de3bc01399512974781f6c9ad6db298bc61a8954cf. Chain 2 (Bitcoin): anchored in block 953641 (2026-06-14T13:54:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3b8a7adc-6be1-48e2-a8b9-ea7160a3ec77.json and https://artists.proofprofile.net/proofs/artist/3b8a7adc-6be1-48e2-a8b9-ea7160a3ec77.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2d86d183cc0f0b98c484e1494f3cf1a0cc6cf633d64910de31d70dc4de79617. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/US2S71334001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1cabead80911fbb89ff6a814e6c84022f5e9362dbe44461fc30705840a750d2. 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/US2S71334002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeed57e0f23c97dfcd42baee1c9505779b0769e6a076cb466800fe29cb9716b5e. 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/US2S71335001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc3e08692d503de93ae5c55058031f5f6bcea59a777425a422c91698358fe684. 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/US2S71334004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6d19a08dfd5b85f9fc511fb56576d9fc821c1b6da47cf48d74534c055ba17ac. 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/US2S71334005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b207c656313a74e576c689617eaf4a1aea0e024dd9baee2b6481500458886cd. 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/US2S71334006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78610b095362ab100f6dbe2611fd3b029e093fa151d42785a6c37eb634acf1d2. 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/US2S71334007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x489b527f1726dae909bbffe4ed7bb8fce01f99df5eb4e9f2a031fff3c99f6ffc. 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/US2S71334008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb53ff871df1494b87628e296d19055d2d05612a76422dfbc8790ce0b61161d71. 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/US2S71456001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eee1b305de37045032193cb0b3a91e387bcd51d8f1fd2bace44797667467d66. 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/US2S71456003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a70c74a7ef4641da358f1b0e7ab38dc2e70767d5214f54c95c05c37d76df116. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/US2S71456005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05e16cdc9c30ac9e423c38b4fc08fe3621dea0fe5bbc0f7eb8dcd852d3a60e7d. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/US2S71456008.
High Wit Me (Instrumental - Bonus Track)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4efa037167527a370625c17b54807bd787c441ffdb9a7c2b6cf58ecb348c18b1. 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/US2S71456009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3dcea7e8bf0f0e392eea1225d91c701eadf2ee6ac5f2fed07ff98bcefbbaeaa. 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/US2S71456010.