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 0x33ed31dfd70910799ebd065684bb2d47811fb648560c766ce58b5513c1cc958c. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/92e90918-6432-48df-a68b-d9581270732c.json and https://artists.proofprofile.net/proofs/artist/92e90918-6432-48df-a68b-d9581270732c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Offworld (Original Motion Picture Soundtrack)
Ein Viertel der Welt (Original Motion Picture Soundtrack)
Dreams (Original Soundtrack for GaryVee)
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 0x8ef49e3fccd3a5833f5d070e8b3eddd03eacbbe02d4b32991eed8e2244e4b71b. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/CH6542143798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08db950d7673ba8170a1d10e9e10f1d7e571e78e862212460095f2ea30832d49. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/CH6542143796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa46fb74a6dd132cf0fd5151f77fe679ad1334e3617d59a8b78bab6594d057bc2. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QMDA62153383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa46fb74a6dd132cf0fd5151f77fe679ad1334e3617d59a8b78bab6594d057bc2. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/QMDA62153383.
Flowers (Original Motion Picture Soundtrack from Salzburg. Eine Kunstgeschichte)
Salzburg. Eine Kunstgeschichte. (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb862defb6bdb62b88573d11dd0cc404faad6aef4a50a27b4173c37216dc51ae3. 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/QMDA72146701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f60b8cd32d2881aa3e8b71ec584ce51dc80377215af124c896664f5e74ad82a. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/QMDA72146703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe28cfc41f938c9e9ea0ac7989b1eb973bb9e2cbf9fdcb443e3e82debf73dea76. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QMDA72146702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe28cfc41f938c9e9ea0ac7989b1eb973bb9e2cbf9fdcb443e3e82debf73dea76. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QMDA72146702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f60b8cd32d2881aa3e8b71ec584ce51dc80377215af124c896664f5e74ad82a. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:27:54Z), 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/QMDA72146703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d1041d5462751b3f86c3e5d6539b308b1468297fa62195cbc3abb043b316450. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/SE5ZV2203901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ff7e24b6197993c588cba9bdfda529e2d69f653b7083123e48f0eb01e97112. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/SE5ZV2311401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x492cc6b441e40f068ee9d7a9ad5ac914e50a8a051bab5ad01419d14771d8b0b7. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/SE5ZV2313401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe384b6a8a94359cafccc27e8138d7a3bf3dc15e10f85205bbd52d165a1629545. 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/SE5ZV2324501.
Wege Der Kunst (Original Documentary Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0438dbf2d3ac603d866dd3d4e39ddc12f05781a25b10024e41155026aaea3044. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/QM7282511680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf0ed0df7705d3117522296f937a5e503ee397a9047edfcd8a51f35ee754c48b. 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/QMBZ92510980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9992963ebd22e12054b4392e8d781a081ef910361ede656025d00dd2c1d93eb3. 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/QMFME2195448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x412a06fd7e84b5aa779736cacc720970a5330bfcae361477c0a0072206164221. 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/QMFME2195450.