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 0x760bda930460d9ceaf31ec0d83c11e20166c892169367fbdd2bad9790879eafe. 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/32d11201-8bfa-43b1-93e0-d0f9d4d43c9e.json and https://artists.proofprofile.net/proofs/artist/32d11201-8bfa-43b1-93e0-d0f9d4d43c9e.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 0xd6d165611e08f7ace00f22dc541916d9918f589454d8aa643ad6c286ad593359. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:38:51Z), 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/QZNJY2137165.
Homenaje al Grupo Niche (Anamile / Ese Dia / Sin Sentimiento)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x468116ba8342b195801a6e1ba4b3000907e6e8af8325192f92f27bac707b6da5. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:47:02Z), 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/QZDA61952448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf22198b5292bbfbb72339c0d569ffe5d9235f7c134caa61b46c66da0d4bffcc2. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:11:54Z), 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/QZNJY2120250.
No Me Hace Falta , la Pelea y el Bochinche - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3aa6d7270abcb20e43866d8576527333142e532e304d464d45330530556f3da. 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/QZTPX2126493.