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 0x44f7b638fff8acb986a8110778111320c25d0a8e6f879cfb0348e70879b76e31. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c6cb1c4c-fe23-446d-ac28-31f22aca0b89.json and https://artists.proofprofile.net/proofs/artist/c6cb1c4c-fe23-446d-ac28-31f22aca0b89.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Te Traigo en Mi Cartera (Canción Ranchera)
De Cual Cuero Salen las Correas (Ranchera)
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 0xa989aea91e4dfd01ca1ca10bb091e44cb5709dc511ddb057063fffe9901b27a1. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZDQH2105961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64fb16e3e45807146f3655c2ab2e607eff6f3d0fd4e0861ed940e7a9b3e7e6f2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QMFME1455062.
Grandes Artistas y Sus Mejores Interpretes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d20369c97275807e0a23647c7afb1239ab63757e877ea7cf9b8197a915ab0b6. 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/MXF331201256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dc2ea099462549852b8ad999965bf61757a2a0b6605b2f044c6644157d9ed93. 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/MXF331200078.