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 0xe07ea1636816297ea4ec63c1be57718e7aa5f27e1f63649785f572c14ba63b64. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/64b7ac24-eb16-4917-adc0-677d3feee348.json and https://artists.proofprofile.net/proofs/artist/64b7ac24-eb16-4917-adc0-677d3feee348.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 0xb1b74e3b658fd14a73f55e1ed3c6cfc219b1846e1ebba6479836ccb2fe55b44d. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USHM81340561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3608f19f0a6c3f454a937f8f3ba4bad6a6752820ad15a1c1b937569fc2cf3793. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/BXRSG1400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x180417f6d2bef7d755a1267f250bfa56114cfca6cbd44cd1c40fdb24e4307dab. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-20T00:27:28Z), 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/BXRSG1700034.
Lírios do Vale no Estúdio Showlivre, Vol. 2 (Ao Vivo)
Meu Anjo Protetor (feat. Beatriz Helena)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2e66a9c1aa70d14978302f6bec763efc17238b3dd4f72553a5e17b3a4002a8b. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:40:44Z), 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/QZNJY2518337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe74bb42a10da4270266c4a6ddeea5b20e6b5d0a011a178bbf6ad7d177b869582. 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/BREST1300058.