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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fe52fccf9975818c330d83a2893cfaff588cfe01aff4d3a9b1f00f4d5355cf5. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d3540fcd-5212-47a1-a91b-35ebff3cec9a.json and https://artists.proofprofile.net/proofs/artist/d3540fcd-5212-47a1-a91b-35ebff3cec9a.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b2122a1f5a323114683636866fab4972727c3b655732b2cb4ae47fb53422cb0. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/NLG3W1600028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60165e4ecc04c6006173d3be76952fd551d4284e3bd8bef3cb05265734a7b797. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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/NLH2L1700114.
Violence (Wildness & Criminal Mayhem Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf203509c7766aada0ad16594f97cfcaa89d42c0bae57c10ef2db92d7ac06ab8f. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBLFP2189254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a7e7fc658c5d0e12c992557833ebd5a7a639fd91c636f04befb60d081b67690. 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/GBKQU2143858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52ce4bff2f8b6bba4663c3016f1a04fc806d3d55617f4cffdaac34d44fd4e7d3. 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/GBLV62107650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f66d7f95f23139d85008b85ae49a903a3954241a784c79974c7f3df464014f. 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/GBKQU2271100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e593cfb8c07d8aa9797fa56673b15882e59933ee546b93f0a80ccddad632209. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/GBKQU2336030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28c3a46438a4d03985cb9415ee2b83a65d3d8468f639318fd49c8afd4dc69daa. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/GBKQU2390673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37d0b23b342eab56a371f7d0f1ec80876ff709ec2731e0a93507f1308617e5e2. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/GBLV62323013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8b88aa791835bb4d8dab4927b6976eda3e2c4d2c40f947e84201c0acff43342. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GBKQU2460129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdec71da1a9668ac64b3c44a39b6c613fbeb293bb1d065ed8ae65c9af1170eec4. 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/GBKQU2499657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb79ed5be7b4156ede97ce333d44409492a584cc90b07f8613a1714a9a55fe069. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/GBLV62402427.
Crack The Silence (Official Pearl Village 2025 Anthem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29fe9c1c46f10302229577775564cf42b2aca0066b62ebaecb3d743a6a84b719. 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/NLMB41000082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba3220d19c2fb1d5d3c088c3dfc71f58bec41be1e2a63c10acf512bbd2788a12. 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/GBLV61724644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c8b336c8253daedbee476f95a79f9595c9756cd67813eca51a6d931bc33a658. 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/ATR981186354.