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 0x51e4fe8d33ea63422c71ae2129a8c0d51ae8718da469c67becfcc7daf0089f4b. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5fed801d-a0e7-4a6e-ad62-a62c621488dc.json and https://artists.proofprofile.net/proofs/artist/5fed801d-a0e7-4a6e-ad62-a62c621488dc.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 0x59cbb9635dcb77d1f7540cff36627aa83750736b5b3d0bb2fe6e1cc28f5cbed5. 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/ESA112431374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9cb83eae991c23f2e2e5018490b6e0cf4ce18528054023e6b997a1d5890cae8. 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/BXIV82355297.
Pretty Girl X Beat Vem Vem (feat. MC Priscila)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3395fe491167a808293fcb4579541708f4ad6e172d155167a89e0baf4d5e2ed. 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/ESA112439311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5a164bd6478161b5a74709599cc4c9adfa271e4385923c9214d27265fcb3833. 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/US7VG2452101.
O MAGO ENLOUQUECEU - ENTÃO BALANÇA ESSA POTRANCA
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeb951f1ee16267158f78731efc78dda3af2364e9749c6d6993e94b3cbf0ca51. 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/BXIV82248693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc558385d428cd5fadbd999329c8991d750325fe7407d5886f44f011a6bb7151. 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/BXIV82290861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5444de7c201e19ae8e614445c3682a80bed9727c6b73d60541677f601ae7949a. 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/BXIV82275968.
ELA DA CHÁ DE BCT CAVALGANDO NA MINHA ROL4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2ba4eddb7919138104832346067a59e2d2bd4c6ba0ecd11e5ed383bea3cf70a. 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/BXIV82286360.
Bonde Dos Audácia (feat. DJ LIPE 011 & DJ CHEFO ZL)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d3041484440e55644a2b8237dca37839ae7e2ee45cffe4fed5d32727b9ead91. 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/ESA112307615.
Set das Trevas (feat. DJ MISTÉRIO 7, DJ KAUANZIN 019 , DJ CHEFO ZL & DJ SAINT ZL)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa825f88b42fd474f6022b40dde47f81051cf7a000f5698c5abcdb4cb6f563dc. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/ESA112436077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd21d154344bec4b87e2ce1cd2c4eb3c1a09b333e56f1dda863c7c600cef1c09. 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/ESA112436612.
Ela Dá Chá de Buceta (feat. DJ CHEFO ZL)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x205fdeca47141f5cf891d5fc62137199583c983b8b8e911b1a9265a7e2a1314b. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/QZEQU2250802.