1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x09839a13cd528aa8ecdf34280e75e253794b6b108b18dd29805529c87a03a9f0. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/92980260-fe71-4b95-a243-df2f730bc93b.json and https://artists.proofprofile.net/proofs/artist/92980260-fe71-4b95-a243-df2f730bc93b.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 → block OTSBitcoinBlock must exist at that height 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 0x096a6ecb6b7644675509d0c30d111419143c6f7324393977680229a1ff272bc4. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/COFC11921902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d79f89b4f8b1e2d6acde03d983cce6615fcabaa1da416f4391a391493744b66. 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/CA5KR2021886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf97923b18d989e5f36e265e130cf3c59305aea61b9ec77f2c8bb28732c6b52ed. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/CA5KR2021869.
Ojos malvados / La negra leonor / Letargo / Pa' vigo me voy / Los componedores
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eec727f07335e8dc7323baf0670d29aa780cf49a829a392521d32e086641256. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USLZJ1768705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdde071230656ac63eb3127ae5d66beaa4b534fb5c96361e43801c835763b8730. 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/QM4TW1632073.
Tributo a Juan Vicente Torrealba, El Señor de los Llanos
Orquesta de Cuerdas y Metales del Maestro Ramon Hernandez