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 0xe045c1388e96205a6038c320875f4a45aa7702f8e9fbce90401048798c514383. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/608e4f84-1423-4d0e-bc54-c19394f01b45.json and https://artists.proofprofile.net/proofs/artist/608e4f84-1423-4d0e-bc54-c19394f01b45.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ku'Damm 63 (Original Motion Picture Soundtrack)
Ich bin für die Treue nicht gestrickt (feat. Helen Schneider)
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 0x54a1d3f41ee84a80bab6d7d126d229281dc42e5b62b2eee0501160845537d718. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DELV42100140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc7b0a965ac665ccb0b71709998b09c5ef3f56b2e0a406395bc9a47d458f3c9. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/DELV42100143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf55271f175a1a399f892a78a76111b5e77b89cea6fcb0f33aac5fecb7fb20694. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:15:23Z), 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/DELV42100144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66fe17b1d40899ccdb57e02d65cf55c36f9c5db8afa3d8f7f59dd4903ba7b10b. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/DELV42100145.