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 0xcbfa5f59d1f77e80df8d5391df3ef94d35a26e265cfe45c87cb7cf8b9dda8e1c. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bf8dbd49-6f98-4cb0-b87e-b5dea233894b.json and https://artists.proofprofile.net/proofs/artist/bf8dbd49-6f98-4cb0-b87e-b5dea233894b.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea5bd86cf5f792d15c56290b30c44f2abf12660c7230771a7e6a5551ee216e8e. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:24:07Z), 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/BX03S1900005.
Jesus, Filho de Deus (Jesus, Son of God)
Aclame ao Senhor (Shout to the Lord) / Louvor ao Rei
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd9ca023eaa9c80a6ed496a6a43c008d30687c2d18964afab8c1d75a4c3b2672. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/BX6WM2100003.
Me Derramar (Pour Out My Heart) / Ele é Exaltado (He is Exalted)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x043ce16feb8934812bba069b7eaa89319b199dffbd8d091f2368ace644151a91. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:30:23Z), 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/BX6WM2100005.