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 0x616f90cc6323fb3db8edb30de71e8499c60c053b7960feb1ee4a9bbe5ac4f497. 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/01775694-a595-4a86-8bdc-d4e1f5a8cedd.json and https://artists.proofprofile.net/proofs/artist/01775694-a595-4a86-8bdc-d4e1f5a8cedd.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 0xedf50ad05c2e450f5be53d659e99ec3c5d62edbb43c5cd5319d71ced513711de. 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/ARF411502585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5109f76e97d9b3607a1750f862a51778c52ad85605015d5b6c162de6757fb12c. 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/ARF411502624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x585528a52979fbd2af2101849d178917e1faadbacb0c153d694c887224cc9510. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/ARF411701822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c8d1b31aa701126469045bab9e4745324ada6f265fd2ce8ee2131e213b7715c. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/ARF411900304.
Never Let Me Down Again (The Last of Us Mix)
Never Let Me Down Again - The Last of Us Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4571e317a310c663d0aee637c5fe2c8e1daca0e6bba5bca5f35792212c98ee66. 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/ARF412300078.
God Put A Smile Upon Your Face (Ronan Remix)
God Put A Smile Upon Your Face - Ronan Instrumental Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe1e5347ca81f03010cc9d14dc26792010ace2e8f69f3137a1069c0def786bee. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/ARF412300336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff14ca1f220e05fcd84d1bbeb764bdff547233afee5a4d0b814debf3b8538182. 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/ARF411900142.
Vintage Café - Lounge & Jazz Blends (Special Selection), Pt. 8
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fc61a21dab89c78fe6321e316d22f3d249cf02ca2b7ac1b3ea12bdb7f536a53. 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/ARF411601122.
Vintage Café - Lounge & Jazz Blends (Special Selection), Pt. 9
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd232a8a9882ccd56cbdeaa1770e7bb85ca76c70f6da183476ed189a1e60460b6. 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/ARF411601224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2206902b2f5d32a045ce08a6db84e6b5b45a9c4c453bd9a54c93cf6be4505ebe. 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/ARF412000047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eccc682e9cb4c3f4f4410e75159b9f5fc95eee4e6deb5cc54fa812ec2d033e5. 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/ARF411900366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39ee7888b4aa993f1fed0db6ec9d6afe3705c27c470715892eced59f64a56534. 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/ARF411400897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaeb00e4c717c9e064fbd0d58a84a7c4092fa21f0d6690495bad08180e27c185. 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/ARF411400898.
God Put A Smile Upon Your Face - Ronan Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7ce315c3a001ee4265824b5d3855e47d4f19ecf94b43160f8afeac4925e0969. 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/ARF412300335.
Vintage Café - Lounge & Jazz Blends (Special Selection), Pt. 6
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd88adae763b009807db6bf32a6097c70ed4207ee2838ba8521c51e60245ac6dc. 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/ARF411502588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39ee7888b4aa993f1fed0db6ec9d6afe3705c27c470715892eced59f64a56534. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ARF411400897.
Vintage Café: Lounge and Jazz Blends (Special Selection), Vol. 15
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff14ca1f220e05fcd84d1bbeb764bdff547233afee5a4d0b814debf3b8538182. 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/ARF411900142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaeb00e4c717c9e064fbd0d58a84a7c4092fa21f0d6690495bad08180e27c185. 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/ARF411400898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ac97f04d29c85b8b5a17a624e6b549838d3675047a57eaf488703de1df4c59e. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/ARF412000086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2206902b2f5d32a045ce08a6db84e6b5b45a9c4c453bd9a54c93cf6be4505ebe. 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/ARF412000047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6811b3c09dc543245b1e16a51d7a52fa24e60cb9561e33af13af0d6b39f43d49. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ARF411600125.
French Café Lounge - Jazz and Bossa Nova Favourites
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fc61a21dab89c78fe6321e316d22f3d249cf02ca2b7ac1b3ea12bdb7f536a53. 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/ARF411601122.