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 0x5192f0961b550cac8850f36c627ced73c00ad4479417081c41f1bb523477dd4a. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9b0dedf9-f3de-4fd3-8c6b-ddfb411147e4.json and https://artists.proofprofile.net/proofs/artist/9b0dedf9-f3de-4fd3-8c6b-ddfb411147e4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Amor De Mis Amores / Casualidad / Tu Mamá Tiene La Culpa
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 0x0e0a9edc418406d99d27c9a281ae13ae90fe299c297f53c8d801ab7dcdd66c4c. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/USX9P2420131.
Cuando Nos Conocimos / Llorando Cogí La Pluma / Uno No Sabe Lo Que Tiene
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9b1c886ea91502b365f642ead2a5dc754f78d7a8c4267903038312c45c96c20. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/USX9P2420132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3977ad08933cb91d9ab87818ee229ebd66ee725d7d8cbb230ca4e4f6421ec34c. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:10:13Z), 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/USX9P2420133.
Que Triste Es La Vida / La Vida Es Una Sola / Celosa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb34dc7dc52685e3d2ccd06b5cd3a50fa3c48bf0b0a41caba3389a21cc2071938. 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/USX9P2420134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe0109baef553190e60f38795c4ecc34f4a1f458e6082de44448ee7c463c1f17. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/USX9P2420135.
Ya No Llores Por Favor / Te Digo Adiós / Mi Vida Privada
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb65a03cf702ab5151dedc4f467610f9b69d5e7adc30bd01644e542d2056fb2a. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/USX9P2420136.
Chico Mentiroso / Amor Herido / Hospital De Amores