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 0x530f6f67046b9f65e2dd3a51213077ffeeb4b9f130e2e4e3f1101523920f0f86. 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/QZES82312085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c26bb96cd23fc521e10b99cf4d161b3b8eb5a4804fc92d73a7422153c55f5a5. 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/UYB282411001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3517e070cb026046dcbef8f1cae8dbe77267b0898280c1369ddb2caa3cc4f606. 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/UYB282411002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x746c74bb45adb133e19568f11fd154ab5e23841bb004787c82beec28cdc9ee90. 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/UYB282411000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfd5d85550019f7452227ada03c9692f6df9a0f05c9fa25a02ef363a5c27c434. 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/UYB282411003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x298712346d0f6282ad7ac44ae53efebcf182ecba14870087e92049e492eb63be. 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/UYB282411007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f90985f6fc4721011a1392388af25d2a42b795e42efb8ab80a33ccff64cbbcf. 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/UYB282411005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c48cdafcb46aaf7789c2a2cb8ddced0ab97edac3e0a20cb29d118d0994fbcf4. 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/QMFMG2328511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf135e5861eb5358c4fe2a8481ec2ce82777f7cffb5390b428f9d5b483ad95990. 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/UYB282411006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb29a3d51749590db3d458e90264ecca5c4b7fd10c14dcd7f55e0d279b9ccba22. 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/QMFME2391698.