Samuel Cooke (; January 22, 1931Cooke's death certificate gives 1932 as his year of birth while his gravestone gives 1930 as his year of birth. Copy of death certificate available midway through scro
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 0x54558c89f1d0b9d40d337f4013cac14bea16984204af29fbded76fb35116d7df. 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/0e7b0945-afda-4681-ad7c-8681053674a6.json and https://artists.proofprofile.net/proofs/artist/0e7b0945-afda-4681-ad7c-8681053674a6.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 0xbb6c63faf4c5f147bbcde9366bdcea124664bde486392ab6a98f1c87023711ec. 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/USRC16007152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xede653f9eb93726075a46e8b5d4f806ff0c03c52182c750a21c0baae095da65f. 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/USRC16208390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc75ecc82282314286bd64319c8fdbd46217fe0740f68f157cf5d1961193399d. 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/USRC16006731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ce024d0343f4d83c96341eb7b55e46f4af92c210b6eed0bfa385449b78494cc. 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/USRC16107214.
A Change is Gonna Come (Version for Voice, Solo Violin and Piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcdde9dd995eb1d53d48b90766af2e7bf015c76f98d0972ff78a18ed0ce18534. 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/DEN962102260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6819a450f8dcaecf136b90323641f03cd07978ed2e06b0a0e4447e873e1b80f0. 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/USQX92401631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4afe9d4178543780366e0cdaa231aa8741d03d1658b8660fad7db15ddeb95f21. 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/USA176520080.
Soul Music 02 - 50 Hits From The Early Years
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4beb1592816897e646c0991fcd7996b76a41bebad3555836b30d3f7bc67c1b09. 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/FR6F31456330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89470510eba751e77b2b2b6a4450c35f4ee41b921ae7fef5956dd056c1f9c38e. 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/FR6F31456650.
Will You Still Love Me Tomorrow (Cruisin' 1960)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x081f5f7e4399a69372aa362fd86a01f4b921a70b42688068ca361ccad5838083. 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/DEBL61295276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x185983804e34861fa195532e498a3f2fabc75c19aa9319b92d45051782b39836. 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/SEWDL6014270.