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 0xcf08d9497e3b4eac01deb08e9f7e5c8c91a007145b302a6a0ebdc94eb5bbb231. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/719de53e-dc6d-4f7c-8394-86056cf2db8f.json and https://artists.proofprofile.net/proofs/artist/719de53e-dc6d-4f7c-8394-86056cf2db8f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
No Risk, no Fun (feat. Lina Larissa Strahl, Emilio Moutaoukkil)
Bibi und Tina: VOLL VERHEXT! (Der Original-Soundtrack zum Kinofilm)
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 0xde26d7c509414781d68f78694001c05a9f1997d9a976dc3e32ef9001d71bbe71. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEB582200453.
Liebe People (feat. Emilio Moutaoukkil, Ina Müller)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e372f98eae1fe57104471b3336920204a27c20daec8e215d59da291ae4d6580. 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/DEB582200454.
No Risk, no Fun (feat. Lina Larissa Strahl, Emilio Moutaoukkil) - Marin Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe1861e3b89f6b52187f19e0a5eb12c5a2a4ae90015f512526f9c82a4e63efc. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEB582200479.