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 0xd8b67f645e0d305fdd803766db8e48d3ef9d32297343329032e6ef34d196824a. 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/64b1eac0-e7bb-4222-9fc8-95736d316d0b.json and https://artists.proofprofile.net/proofs/artist/64b1eac0-e7bb-4222-9fc8-95736d316d0b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Capoeira Fusão - Mulheres na Resistência - Vol 11
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 0x83c17ce6c8a6c0b26c1cce945934590c40a0008107bdac59ce6e8d7f17691fb7. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:40:32Z), 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/CAENV2103257.
Capoeira Fusão - Mix 7 (Remix instrumental)
So Ritmos Capoeira - Vol 1 (Instrumental)
Capoeira Fusion Voices (Capoeira Fusão Voices - Mix 10)
Capoeira Fusion - Vol. 17 (Instrumental)