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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd432d410e3765dc8e17b51ffbafec893c19e2e13fee736c3a1c356ed7623b3e. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/26ff77e7-b298-49c6-ab4b-109a191be14c.json and https://artists.proofprofile.net/proofs/artist/26ff77e7-b298-49c6-ab4b-109a191be14c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Amazônia Sateré Mawé: A Essência da Vida
Terra Indígena: Nossos Pés, Nossas Raízes
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7503ee474dac9a5bd3ddecfffae67be9644b0fef5bbe7d82c6f69c3ed90b8bb0. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:36:39Z), 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/QZNJX2320331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d5ac460494c5ec04854572a5f1f004238baaf9ca4f1fcf145f21665341f4993. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZNJX2320334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa00c875899393801466efdd39c243bb0e55c446306a84ef5c5b9048eeaf9e019. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZNJX2320340.
Wiyae: O Canto de Resistência Pindorama (2024)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb743ccb6edfdfe4ecd8bf941a8beb970aae5d7960c2560c33f85a9b2f247c95b. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZNJX2464762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed1c5b655cd8e90903b79b12babbfbaca1379e11b573036438e3ee09f77bfe46. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZNJY2501697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d9d235f4bd6bc28b87deb58579c2695804b9bc14aea585f1f16e189002a59d5. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZNJY2501700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7feaa05aaa84e7a3ba46ea713aa70c5f2be08069d47d42f9e1d72a408641429b. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZNJY2501701.
30 Anos de Arte e Cultura (Ao Vivo na Aldeia Muirapinima)