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 0xf92e370d7a8dc0c049897f9da47725188c953474a368edb9ae4f143593b9e708. 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/8f1979fc-4c31-486f-b8ca-687c72ed8389.json and https://artists.proofprofile.net/proofs/artist/8f1979fc-4c31-486f-b8ca-687c72ed8389.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Really Love (Original Motion Picture Soundtrack)
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 0x68195595dbf1d8623a1f03d483a252c80862a47ec548163d330e110c1f8b2ca5. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/USLS52106703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16219f4a82609b88091cf9eba7119086c0e84a03af9d2ede2c907e7f9e04299a. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/USLS52106704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbd1019074f297643edad87f22fc4f4b082950ff0dd4e4341d9810d44d9876c5. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/USLS52106705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f67a9996f04b38b1671e8db838e23ec2dfbfcd889e655293f56326e6d5b4dc5. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/USLS52106706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x132ab05a11d03dfdbaec3626190c4bd8e1ed49815adf8669dd92a1992accc481. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/USLS52106707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x022a8725fea47d7069cce18d8e7591570ed5d08fc72a0bc38c938c9d307a637c. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/USLS52106708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae1dd93c5b7ed737f93586bb1033c9ece3cefe8f9d8445bac71569d2781c7944. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USLS52106709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca213b0f509cecb9a05c9d5e81ad50d016b861397ac9928c7c4a49f5b950f1e2. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/USLS52106710.
He and She Together (feat. Christopher Michael Stevens)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94a99bb348327db2e1f53b1cb97509c324aa8fb267eacbe81e3e0b928ae10831. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/USLS52106713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71945858ed65e776b84e1e6493f243f1cc7347e2073deb147ce2210fed784a9f. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/USLS52106714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22a6f393d2fb68e18a8fd461c4ba13900f5b567c58dff7db302a344be35b3590. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USLS52106715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d54554b48603d32009fdaa126a36cf31d1e8b6b6037ec358e864df57786f29c. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/USLS52106717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ae0e7da48a552d49d402c46edb3482547ff49909accc89e77e6e77c324d4126. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZGLM2525751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x839a3bd20c976237d766d665c023d6c014fb852092c7fec62463a8fe005c8e69. 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/QMFME1922918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x453e0dc31fda8744b40f921c9d9bebf944f07cafa73d589733016a2667bef10a. 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/QMFMF1394526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f9be47cfae652cb4514b1576a9dbcadab8799b31c26b0e7b6d2db089cfaba29. 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/QM4TW2023144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefe511ff8cf728d9fb4469d58596fbf5348c6c0f73c3fe5f551a0d05624485a5. 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/QM4TX2482363.