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 0xd8adc01527700f42f8641356e984f03bb482d7cb4a4f2e0ef87ad0a3807d73de. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/55a566fb-7e83-4ee9-8a12-f176ccb5e0f0.json and https://artists.proofprofile.net/proofs/artist/55a566fb-7e83-4ee9-8a12-f176ccb5e0f0.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 0x757febfd20d033e8d5b2960e9448758f9ccb603eea1e99af05f9cd89bda512ed. 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/DGA072463249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb04e48e6481cf113f1546d58dcbb5af49a7b1ab546fa8c5e6b110bcf608f51dd. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DGA052444469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a6d6c1fd3f9642b69faf491b9882e360b48d1e0e29d53e88b35bd22fd2b0dd2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FRX282481410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e5ab86a444c59f2f864fa1423dca4c05a10a79f71d022b833a4a5cea655684e. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FR2X42482931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x686ffed91c25c59b43822b8bdec87be102082a46aa22007a3ee89cad0b29ecdd. 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/DGA0P2381886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ff4db84d9ad0b35b5272e864fbbb0300fcef1af3051da9f3c0b56b42c1ae80. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FRX872362200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9849ed704ad2c10a96e2eb172ca792ad94f9126e2ee1800368710abc0ace0ec7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FRX452393343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d04d6bd5eee0207bbb74cce791dbfaa7d48b2fb62c0f4c0a3668c3c80f174c4. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FRX202239825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42e77ddb3c5d7d460326f4cfedbb49830ff7d58fc2ae503c79360f8767bad57b. 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/FRX282109167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17ac009521a9e0f1cc005e004fb3ca9709f310cd77b7d382e0a5863d82a79a12. 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/RUA582104098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7895215bdea67ad6871750d50b78c2b007fab2bafd93eb59e1e2825ad46e9b1d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/RUA582103722.
Жизнь по вызову III (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54d34a296da434c05f409c8cef2810639d9402f4872b025e00233deb9021e595. 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/RUAGT2427440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcb81dd43d192d514f06e3d67aab5ef8b56f43c86a203107c6182cd58a1e5caa. 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/RUAGT2427441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d434e6ff55470792299618e78ee98f9ca765bef53101605acaf5f833494d9ad. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/RUAGT2427442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb0eb2869f333449233e378153dfde2e0ad5f2c74dcfb521490bc31aa95c683c. 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/RUAGT2427443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2797b20fa292ef6d881e2d0f199693fae9473a8aa6ca2a19e37fa9a39ba4cc7b. 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/RUAGT2427444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1345322dd349214f8ab6632fc9a452a905892053b2e9fc3ee15acd0c69cd7c5e. 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/RUAGT2427445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cdb7e1bbec1f6c67450bedaaae422e08b8253a176cef512965d471f687518f8. 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/RUAGT2427446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee2e89f21c3ffc9deb6802eeda6938277247529443742d749f15d8551ede940c. 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/DGA092485473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x428429581bf8f981e7afed6d60828f47b064644d3e014010fa1d824b36fa1dd6. 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/RUAGT2427447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27647e8ab7dc2f74fb8e50fbe39f1462688c3590272c615be454c282315eb95e. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/RUAGT2427448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0185c815f51f825b03d8e648e8b15b9987d88104e8832cab74c596fc9439076a. 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/RUAGT2427450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7c6b9c26dd3e609709a62f46a38bc35f87d7a50da758a32675e301cbd6156ac. 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/RUAGT2427451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2a43de6eaf884239151399d131b1f6b9ec7adf13b4cb658830d5becc8df6d80. 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/QM4TX1965214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0741560ef8594265c4b826ddd6665a6a1f8386e0f20aec67da0b926b4f5ea7f8. 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/QM6N21815601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2d987f9f9b8af41f118c7b57be14fe8e66a0d2bc222bb6b5e74b306bda62092. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/QM4TX1965221.
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