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 0x8f7e0fcaa7a97d97330e3d9aad7c44aa4a4fef26739e9c49437c6deb552b9ff5. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ffe6440e-f3bb-4d0d-90c0-4452271327d8.json and https://artists.proofprofile.net/proofs/artist/ffe6440e-f3bb-4d0d-90c0-4452271327d8.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 0xd506935c7d9a8fdb48de3f739285ad408fbb7c4214478c4e07300cb074c42388. 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/DEAN62401293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6c45e7b9b4eaddac9580a418a6b82b37050ad2780d44bea980845735f1377e4. 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/DEAN62401294.
Diamond Waves (a Love Song for the Ocean)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4649a986a82b5dc6b98cf5338343ec03d11e78d3a3e0f85dcc227ae6f8d3e4d7. 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/DEAN62401295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfae6dcc8509ff8a0b089dda7d72c897a7868b935caf3c934225fca482d1f830e. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/DEAN62401298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x464edf243353f1e381aea006b3a2ff6de77e20694cf8cfb65bcf9a837e7671ca. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:35:02Z), 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/DEAN62401296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab96713310af348d1f49590c8fd608bbe475dedb4f916085d9acf81e04a2d8eb. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:49:04Z), 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/DEAN62401297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaa6df8c5ebc9aef030289a4cc1891fd9c6d4a884163f0b73012fe93da3de17b. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DEAN62101121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b951e6a1cfb80cf8a862f9c019f645bd0c84757de1ef2a8a4c0bbb2e2dfe2d7. 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/DEAN62101122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4a728a9db3dffa96a8d906a7248b12a4bc536c3872c564a1276c9df50275366. 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/DEAN62101125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cb300ea4e9f0232df9e3e2b6938fa02023c863c2a446588b2c2d6b1682398ce. 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/DEAN62101124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ebfb7cfb3df739d5c00e1269a1b4b7812d8f6368b30c299447fab6b84d6bc0. 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/DEAN62001036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19f3a23f22c2ac1a9e2b93fda36e2775dd63a7aaad5ba4e8a70fa978f62bb14e. 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/DEAN62001037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe502856f25613860e3307fea60b33cea177e8c17e16eca61977425a3a6812d92. 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/DEAN62001038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82153527a44d349a86f4649c5db7b85dfedf63ae1877ac415896309f0ac6afa9. 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/DEMV91805320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3c21e51dc40a145670758fc4d7adad726c974c80dcd7a0393b84a691ff598ec. 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/DEMV91805321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d19b7f2259b7a26566c27dfaba9720832685efbf460b928d4f7b84e572ac18e. 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/DEMV91805322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x531bb915990d9e79fd7d3497cb54006937b6c975ab63379838a90ec9b712b1f9. 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/DEMV91805323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d733b3e679bc5ea737c837485164db9349102fac0727cf8ba191b574b467114. 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/DEMV91805326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94512ab49983914f1295b5ca6f7c0d335edd5a3534ebd1eb35cde912468994fc. 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/DEMV91805327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5df742bdd7e36953671cd41c601eaaafbc7d760c731ec38467501af6055819e. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DENU71400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4d72507bc381492f34c2cf57533bfddec0253d629d76965942a75eb7c871dbb. 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/DENU71400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bc8cdf4db23e50c5b938352628bb0fad2fbadb4e0808b127a447487ba0fee7d. 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/DEAN62401301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd506935c7d9a8fdb48de3f739285ad408fbb7c4214478c4e07300cb074c42388. 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/DEAN62401293.