Quarteto Novo was a group formed in São Paulo, Brazil in 1966 which released one landmark instrumental album and launched the careers of some of the band's members.N. Scott Robinson-World Music and Pe
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 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. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin 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 0x914886c9916b39eedebba76ca79d222d2f44ac9fb11266a2561752119c37267f. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b9fddabb-a2fe-4210-9d36-112d752023fe.json and https://artists.proofprofile.net/proofs/artist/b9fddabb-a2fe-4210-9d36-112d752023fe.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xd1628fb039dfc7cd2837bdd3d758bf636fc06611cb24e85549e8df553107de6a. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/BREMI6700316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c416dfd4bf88092fd23bdbe118d4b83b2c8299ad3383f852eef3b4dde5ef632. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/BREMI6700317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c416dfd4bf88092fd23bdbe118d4b83b2c8299ad3383f852eef3b4dde5ef632. 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/BREMI6700317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b336bc716e103b89366e1cd1aaa55101611cd3a05a2bd0672e6cc1868516d87. 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/BREMI6700319.
Welcome To PEDRA BONITA - Instrumental Flights Over Brazil
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c46fda62aeb7d8db8222cf9cad5e85f072d57d40df1a40a412d4bead99aad6d. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/BREMI6700314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfadcc61fdfbdfbb97d04cefa11f661cec26fe9d03732dce8e3573a0c418d2df9. 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/BK2OA2500034.
Thinking Of You Is My Way Of Hugging You
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf40178a166c2b04d0c4df0d515fe208dfbd9a10f4e221827ba292f8fd786486e. 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/FRX202339980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef7219d518c25046b32c3194527925f4845200b8f792dbd69168333dd0ee403. 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/DGA062353781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeef1e95f212c7fd944cf12bc8f2681138d253c311428706555ffd88690d19208. 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/DGA062353782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6934418811a33ee02bc7d1ec4e55c922c4150f1efe5520ca8079dbe07e35e1ba. 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/DGA062353783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a2143a75b235e61924bf18ee3907c4f8867220fe308735cd05340911a835be6. 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/DGA062353784.