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 0x53949ea2bdd33fe0989599280229031aaee9bbbf2043fd521a9eb6e6cda695a8. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/33787ca5-49d4-4ab0-84c1-4f4e85fa0028.json and https://artists.proofprofile.net/proofs/artist/33787ca5-49d4-4ab0-84c1-4f4e85fa0028.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 0x35faa11d84929189d690edb129594a5c34e6d19371ce34a7a97a4ce42cbfefac. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBCVZ2300138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e4cbe06b36ac955e1067f113bf71b089b1671aaeb19f8badcb7a2c98a35a920. 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/GBCVZ2300139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e9dd7592a941a684dfdf6c0999755996b20479885c03822226a8666ce0ed464. 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/GBCVZ2300140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x149961ea1b08d82753c45f6b3a9e7128a06967dc6c5b35d5bf447cd9f1c346ac. 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/GBCVZ2300141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcad47b82b0428bc86075b942ada33781ad380a86c6382b34fb26052da27ed804. 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/GBCVZ2300142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb165bd2b9d0d94a3b9c12a04cd807ee5103bf641a3340f1c9846fce4f1c23cfe. 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/GBCVZ2300143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7318c1fe5b106945d5dbcd18d3aa7868f4b5e5c1693390cef850cdbf788620f7. 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/GBCVZ2300144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x593cccbc3574c9aa09fb1641616eeeb4c94d2ec0d6578f8e48f1414e7a367954. 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/GBCVZ2300146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21fcc8b977fe045e89a60beac97673abe92988c36f9dd45ac122c2981bc7a59b. 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/GBCVZ2300147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e9dd7592a941a684dfdf6c0999755996b20479885c03822226a8666ce0ed464. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBCVZ2300140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7318c1fe5b106945d5dbcd18d3aa7868f4b5e5c1693390cef850cdbf788620f7. 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/GBCVZ2300144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7318c1fe5b106945d5dbcd18d3aa7868f4b5e5c1693390cef850cdbf788620f7. 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/GBCVZ2300144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd5ca4841b2c6f799f3438e62e4b27e4017f58368c7eff42450603bbb1f80e4e. 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/UK3G31901401.
I Want Another Affair - Taylor Skye Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd4863a18ad8ba98a442ea5496c8143f0b181256dadf2be425b9c00563b1536d. 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/UK3G31901403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6af82426ff6eb8e4ba50d4596f6d8f3de44364f7d48f2079862de14ea5a41c9. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/UK3G31901404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72904891eb5cc5a76f1ffc34aee737c67463de69dd7e4338447763169e009984. 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/GBBPW2000173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f101a9adb808b9f3fcefc17e5cb636d362e9f418eb76fd1253501634efd28b3. 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/GBBPW2000174.