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 0x8db6d5203646eb8577fd8698b81f5459d101372d2045545c23127fcb66f6c9d9. 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/0864b417-63ee-4132-aa5e-bc3cf7f4426f.json and https://artists.proofprofile.net/proofs/artist/0864b417-63ee-4132-aa5e-bc3cf7f4426f.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 0xcae8bb38eaea2269b7fdf6e49f92fe4153b5895bb86c95467bff0bde8505de65. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/CH2010912646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20e5b3838f16c6b779a9f6f5dff1efb92e6051d970bafcc37f49596e5fdab031. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/CH2010912661.
Wilti-Mix (Stüehl ewäg / Swiss Lady / Schöne Maid)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0e7df8e8259fa1fb5c15a5a35528d32357f3fc31933d2748c9292913670c67a. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/CH2011417380.
Wilti oder willt di nid (Umbrella / Schatzi schenk mir ein Foto / O Helene)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d6f1e786e6673effc82f7b8c151418a0fead5d1b6c5a10c80e8271899753166. 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/CH2011417378.
Tschau-Potpourri (Tschau amore / Arrivederci Hans / So ein Tag)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a275efb6189a03f539166d0886ee49d6e00f02937932a9fb262547db73e4d6e. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/CH2011920015.
Leeli-Buäb (Lollipop / Wenn die Elisabeth / Auf meiner Ranch bin ich König)
Rock-Medley (Sweet Child o'Mine / Rose Tattoo / Grease)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b63f7e1c414d4e83f5e8a94817e77ce9431a31af02e781d1fff890b77e4191b. 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/CH2010912651.