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 0xbb6f109c9299749f41b27ddc4bec8d95e13139a311459530634cdb16f5bbd959. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1900d886-3a37-433a-98c0-c508fc69d30e.json and https://artists.proofprofile.net/proofs/artist/1900d886-3a37-433a-98c0-c508fc69d30e.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 0xc721331b60135ad273994fe0f509df02cfa00e8a1441a8b77e87ca6003c59bac. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZES71970464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63001e783a6c17ee10b8f49772206bde304fd6138bae7a295888941d1d14349b. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZES71970468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e5ef79adfe3cf7e472e7cf9a4c8ae47344b86ef9729ad5b2bc9c59f12cb16fd. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZES71970470.
Binary Sunset (The Force Theme from Star Wars)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb94f0be0dfa87202d4facac1ac7adcfc50431c1793d0f0099bdbe091e3dc46d0. 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/QZDA82031898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe30243ad1c63bc0fa5a24573725e143320977dcb38c0276b0a1d7b521b05a374. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:48:44Z), 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/QZES52093403.
Highway Violence (Original Motion Picture Soundtrack)