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 0x9011863a3d5f2217b6386fc1076dac3cc94c65a6b57af05d4101a4e1b304832f. Chain 2 (Bitcoin): anchored in block 953754 (2026-06-15T06:45:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ae905526-6eb4-4d8d-874c-d93aa453b576.json and https://artists.proofprofile.net/proofs/artist/ae905526-6eb4-4d8d-874c-d93aa453b576.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 0xe82890fa7a7544748a660be13f29330db84296f3927fc0c0e8e9b1c4a99397ed. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:46:09Z), 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/USUYG1529464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a4a258f4c319d898a62f8ae7cc1892c948c71be5ec914780f17d03560ded9f1. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/USUYG1599899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38b8e72d4f5f3fe6030d859b7091475039e5fdd18b8db94ecbe9f290f7d361d4. 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/USUYG1599917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bcc71bd0c8cbfab4dbb72f6754569b712ccf3ef74dfd19d712e17cd7763c78f. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/USUYG1599919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadc6676fb8435084ffb91c7e9584e4193318511945db6b9243a4d533a8c51ad1. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/USUYG1599920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60e1d10ead08e95b4a8416d4d9c362162772be18a026c91135eeaa76d0c7f8f3. Chain 2 (Bitcoin): anchored in block 958861 (2026-07-20T10:02:52Z), 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/USUYG1599921.
Cleveland 2 Cashville (feat. Young Buck)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x618732a6578220accb756a24b6fe87a7503699c412371368ee8ab385192a0de3. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/USUYG1599922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa253f953e1ae91f6ce434bcaaf1adbb0dee09f404a9cb7f02012420487e7cea7. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/USUYG1599923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde282565e1cb321c42a857788212e7678a9963efa4585a72b6f1c2f4c0724b6a. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/USUYG1599924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b4d0b7b6cde660bf5f877567ef9b7f75b3384388a868904da9ac1aa70d3875a. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:42:20Z), 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/USUYG1599925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5b552fe23f4ffd3495562ce6b7eaf061c0e601be80e914e33ad7855ce94c6ef. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/USUYG1720866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd0ead937f2c11360b685b6d91a2c8968c0c48f337f1ef723ed20235b568ccbe. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/USUYG1739113.