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 0x975478b970f397921da120e79c968497acdd6eea4bd9718dda75c641b1ef0b34. 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/0b7dbbd5-13f0-4f45-b011-a034b5f5fa76.json and https://artists.proofprofile.net/proofs/artist/0b7dbbd5-13f0-4f45-b011-a034b5f5fa76.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Darker It Gets, Clearer We See (Liste Noir #2)
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 0x1067ee975191cdc00cea07cce6bd1e92ac4f8e73e06adbc9dc5922ecaf275a4d. 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/FR9W11504787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ae6ccfd2c1f81bcb091a0c0c8ecc76963b36d3a39cb471f254c5d766517a0ec. 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/FR9W11504795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x184199d6701d9fa12aa9217f4fa99130204277b299869c61eef7f15b786810bf. 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/FR9W11410066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80862759988bec067153c30f77c10e124622f3f5585f550a99ef70b6486f9d83. 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/FR9W11410073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3de2003428ec4247cb2cb4b0f42ddd79e3254feefa5c00e5d55b2063ce3befa6. 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/FR9W11410074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa927dad8fdde6a82bad38945ef90e37843d6b0c7cd0c17876c936dbce62beac. 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/FR9W11410078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f1f6740070eee534c7521cf8cf8fbc3fff72d9548da275ec9934869ab15c6cc. 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/UK9J51400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5931009b8b53ab8ed2d9db3fa97e7c2f5dcd1de078b6eae9107fcea1a63b33c. 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/BEJD32100038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51385ac1d07fa65e453caf26de2fd8e60a6dac942970fc71b03adfe4ca597c52. 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/US83Z2333339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ac3e68090901d568dad1df60d323bf3f99db4d49e4bab40e6306a8104b2cfa7. 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/BEJD32100041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb190fbfba21c3e3a888bd77ceb36e2b5e59b117341b9d462097f0ab666a473f. 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/BEJD32100040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd40eb670289d1b87d883018a89de1b38a047a46022b9a80d1945e6e129c29663. 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/BEJD32100042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2ba531e7493fd05f061a878d69264c5777576ad094098f16571d87e4b1bf1bc. 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/BEJD32100037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5931009b8b53ab8ed2d9db3fa97e7c2f5dcd1de078b6eae9107fcea1a63b33c. 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/BEJD32100038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd03a506a4a6983f3fdc7d1fdd4844bab3e5b804a7bfaabfaa053666c9b0c7870. 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/BEJD32100039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cddd3c58418c81cfe861bbe6a8bd5a86567ba949d9b0a9a2ff9582760ef4854. 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/FR9W11020196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb57082c123efcb186a62889200175f07423189225d011c958f8708381e02dbe9. 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/FR9W11020197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9190fe448aa59c7d37753ef4fd97612aeff39f72a8b44242cb545e3eae4cd73. 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/FR9W11020185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x777cc4eb84a05dda9ca8f1ae58ebd11d5df896fa7b4be6ba0bc11d389824f7f9. 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/FR9W11020187.
Social Assassin - Iñigo Vontier & Dan Solo Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3ab539124045a4ea8b1568c5a8f8a4d422465cc3981b0c3a7f1f3534585cd2e. 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/UK9J51400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b7798848169696191c3b0aa719d23cd8ef062a2b8660f7b806c9695cf4f96b1. 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/UK9J51400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3ab539124045a4ea8b1568c5a8f8a4d422465cc3981b0c3a7f1f3534585cd2e. 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/UK9J51400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3851cd326418a0fe1df60309eab15fc49ba5ffdf2be18291a12e8bc7aab4e4ad. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/DEBL61500094.