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 0x649ba986a1a93aa1d240ca28c7528f514a3f039c0c6dcf820193be7dce0c0479. Chain 2 (Bitcoin): anchored in block 953786 (2026-06-15T12:56:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/db08d06d-a53a-483d-8792-7ae7cb7869b0.json and https://artists.proofprofile.net/proofs/artist/db08d06d-a53a-483d-8792-7ae7cb7869b0.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 → block OTSBitcoinBlock must exist at that height 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 0x916486842f09bcd536a044b988bfb9583db5f4da09fab28a35aea5f428057ed1. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/HKI191719101.
(If You Can't Sing It) You'll Have to Swing It [Mr. Paganini]
Please Don't Talk About Me When I'm Gone
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e46e1fe2d9e93bfacab4374da40a831a7efd60f29482757b7ebeb5397d5b866. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/HKI191719112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b628837e42656f680a4d1e46668474c22833460ca7698d399fdd6a0ab591877. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEAP72218002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c45f0786f59f19ddce8f574dac02edbe72a45af0101dbeeb182e16f732391e. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/DEAP72218006.
Speech: I Contend That The Black Is The Creative - Live
Gentlemen Prefer Blondes: Diamonds are a Girl's Best Friend
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6f1ddfefea77b0bec8e071768307a547953cd142130bab51cd614258f2efb7b. 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/DEA551331432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x155a4ec485e1340e84f891bbe85290616e74ba39de9167776314100477c56107. 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/HKI191522501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceaa2485c4692ee208f8a140b7c5135ce2508494636866941106ef2281d26a56. 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/HKI191522504.
Star Spangled Rhythm: That Old Black Magic