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 0x518ebbbfd7221134d7e8ede3add3377acf1e154fbd45efd5f5a8d13f6b5c3021. Chain 2 (Bitcoin): anchored in block 953614 (2026-06-14T08:40:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/176bf9e7-aadc-44ea-bada-bd69fd61c3e5.json and https://artists.proofprofile.net/proofs/artist/176bf9e7-aadc-44ea-bada-bd69fd61c3e5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tributos de Colección / Lo Mejor de Ricky Martin
Tributos de Colección / Lo Mejor de Julio Iglesias
Lo Mejor de Mana / Tributos de Colección
Tributos de Colección / Lo Mejor de Cristian Castro
Tributos de Colección / Lo Mejor de Marc Anthony
Tributos de Colección / Lo Mejor de José José
Tributos de Colección / Lo Mejor de Camilo Sesto
Lo Mejor de Andrés Calamaro / Tributo de Colección
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 0x1de85c60be5c66171c640f8f54ceba63434d161e7be7b3480f750a2e68d05f1b. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/ARG100709831.
Lo Mejor de Soda Stereo / Tributo de Colección
Tributos de Colección / Lo Mejor de Juan Gabriel
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3e8d5f8181e7d4e9ba2a434e7500166a6a057234258345b85ef51c92b326f22. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T00:03:25Z), 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/ARG101412388.
Tributos de Colección / Lo Mejor de Luis Miguel
Tributos de Colección / Lo Mejor de Ricardo Montaner
Románticos Latinos: Las Canciones Más Románticas
Selección Nacional / Lo Mejor del Rock Argentino, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03165896c0f21c40cda1da1570040a021eaaeee7ccae2961de58e044385452bf. 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/QM4TX2287390.