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 0x36a74fb3bd1e3742e4635095b5bb96304b68410d8d6736122610e24d0a7846a8. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/edeb0e7f-35be-4cb6-9386-a9663f5b9672.json and https://artists.proofprofile.net/proofs/artist/edeb0e7f-35be-4cb6-9386-a9663f5b9672.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Verso / Peão Apaixonado / Mexe Que É Bom
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 0x0c6aa119d7b5e73b89e01500e4e357d986d19525850f80c89518b9f923001b64. 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/BRAPI9900061.
Verso / O Que Tem a Rosa / Verso / Se Ela Não Me Amar Vou Ficar Doidão
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a0e9672b2372378136c5471dc882420c7ba9f0f0de7b650cac93ff1d7364bca. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BRAPI9900080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f365c7859c0e495f2e723e66f8355e9bc214fb8156043435fae75dbc3115a6e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BRAPI9900069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f29e1f4a27f42084eca3cbae4e9aa932b9ec450b981de3c1b5109b439eeeaec. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BRAPI9900067.