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 0xd201afc9e659cacc88fb6a84589497dcdd53ef4e9c475276bdea418407fc7293. 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/TR0440601701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x942fc73ea45151de3f16dd71ad749d4b4db099358a5569028ef47fdfd6d4caf6. 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/TR0440601702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49e557a9143004ae50f7846fd7106d9213391cde0cac6503896171f3d40ee313. 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/TR0440601703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90a2b05810c244347ea28f8283f6b5a1bab27ecaef6ffc218480b57edea16bba. 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/TR0440601705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd859a3ef41875e0a5a0b97beeddbd2eda17e1ffa656b3ab25be8849cfd0d2d5. 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/TR0440601706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31ab34ee09fd04d3773733fabff685f3423029790a4e9edde6fc24d49e8640df. 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/TR0440601707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe2dc024c05fb2ce212611a87fde4a9e69073d64e774f281393cb8b24c9b4137. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T16:23:43Z), 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/TR0440601709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x101264a26caa3c02e4d676286525bb3ee843b5770f7c7a6064ab437755af9b20. 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/TR0440601710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd34f99ec1c76c056c135af416da817e8ba09105cff39d6ea704a157798d64e8e. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QM6P41878995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbde717b6cef66281f916474d4b898bd96c4eccf38738b56632076d854eb98fdb. 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/TR6160800112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x770d0d958e85978334f2e08bbf2816aea843baae38185fb8d0236579cee48e1e. 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/TR6160800113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24e317868adbd71358dfc976c95676a0b657babd9f22518a1fe51538bfc29451. 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/TR6160800114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51fe2ee75ca93f845acda65bb649d3f8631eae0e936f386e847ca34dd9437f99. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/TR6160800115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bd16a2914574ac73025ca39a31382bf35590173ce0572bcdec8f42ad632d374. 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/TR0310600054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce6e38b35d2596d2ce5c2eddc8ddfa46f38d344477e1be769dc260d55621e664. 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/TR6160800116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc08da3c45e7ac9f94cb1c054aee42115c4888d0a4ea24b9b86b404102f7f89b6. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:43:25Z), 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/TR6160800117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb8583a26a3a87dda73659af35c58916363f44465eacfee218d8d255093605bc. 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/TR6160800118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e32d5746382598727a02e3abe006b785a111c9a13673d01e686eefcbf2d360e. 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/TR6160800119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50f0e296909aa4d28168b652acd9cf613b8b84c1af1c2b80888ede02d4fde0d2. 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/TR6160800121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ea2d5ef44b90c9160703d1f12de563468e2be20218e73337398c0605722af19. 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/TR6160800122.