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 0xa9d1659b9f9d3c98d773045f7c2bf465ed00da3de9e90a8cc54eafec2c39c365. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/BXHI32000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f6fffcddcc291d657086c1015aa2417a067ead43eb950f35966814d1313da53. Chain 2 (Bitcoin): anchored in block 960210 (2026-07-30T05:21:45Z), 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/BR76T1800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40ade4ba46c196ba642d8885c0420f42980a4a1c3eba682f9fdb39d137d0ded3. Chain 2 (Bitcoin): anchored in block 960210 (2026-07-30T05:21:45Z), 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/BR76T1800011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b183a394e22cf9c01b7a8bcbbcd3e472dbf951443d4d0b2e790cd48e4848cef. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/BR76T1800012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6e7983a8a4c9d0c792e50f9e9fe3f87f9577a3bc2892ff0640b296630c36d3e. 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/BR76T1800013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe357d5454aee218ab690604a1b790a948281517138cfc573b55cace1d2476531. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BR76T1800014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf18fb7585b4f09981b90885c691ad78c796effb9e41437bbded6f2b5d2443685. 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/BR76T1800015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb633b2c70f4afd1a34813128f91dc7d8fa3c4e779b1e2fe610231c01dac8e5fe. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/BRPUI2000003.
Guga Stroeter & Orquestra Hb Apresentam Zulma e Família Stroeter - 92 Anos de Amor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb5786eff81364bc72297d157d078a70dd782b3323804b45e57e404e5866d210. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/BRGQC1800016.