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 0x575a18285bef0fae03e0accb56487f7f921fc31c524013332e3bd4fa191f32d4. 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/BGA472328011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefaabc440e3e7d83336673373ba9efdebaaa688ccf3d383ccda940728f173004. 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/BGA472328001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd335470e4065ef361ef8c6c4aeed53d9a1a7105f22b846f477090b82ba748796. 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/BGA472328002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fd004fee95b8a7854f2f487b95d888589d341ea526d87a0cdf68a103510a6ea. 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/BGA472328004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x961d44a92f0ebee261ef013cdf1c7356a4ac96c27401cf28d1c54ce93c625d23. 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/BGA472328005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42e49e8e43b1a42ee428ca04568bded38f2162d792cb0c2ab665585d85c928fc. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/BGA472328006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7909ae5a4e8d914b14f0b1f49519d7c8141f94c6ba760cff4332b3f1167c19b3. 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/BGA472328007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ce95c43a32b0509b7af97c79624f4502795404b209a1b152fa78aa57717e188. 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/BGA472328008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8c8c160abce9172151d3336cf8e1ff2836db2b5018e8d4ffc00e1cbfce72d2f. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/BGA472328009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad31794df4437578b9afe32844f0ba6bcacfe50ced4952252d2bf6dfd322f85. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/BGA472328010.