Sambas de Enredo Carnaval 2018 - Série A
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 0x510148486455270ca148f248ea3d45bb85ba05430d3a962c65ec11d52be84e33. 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/BRRGE1707635.
Sambas de Enredo Carnaval 2019 - Série A
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3e62b672cdfa3961d62fd2777fdbd9efd1f1e8d99c9ae5ef072ee2072e9c34e. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/BRRGE1812619.
No Saçarico da Marquês, Tem Mais um Freguês: Viriato Ferreira
Sambas de Enredo Carnaval 2017 - Série A
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x705a141ce78bb9c1bb693248ec86925cc2554e10a050defd0ac925d5595747d3. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/BRRGE1606284.
A Guerreira Negra Que Dominou Os Dois Mundos
Sambas de Enredo Carnaval 2020 - Série A
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa32fb3086f70fb84b54ca1b3c45ea1fbd57255fa9dc932c932e6538b3c7584b6. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/BRRGE1911300.