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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b504bcaa010e4939d45f8fe6be77f1accc86b5c4ff013fbdf8bc94526096e08. 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/ff75a8aa-cf0a-4e3e-8e8c-15654476fbb4.json and https://artists.proofprofile.net/proofs/artist/ff75a8aa-cf0a-4e3e-8e8c-15654476fbb4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bella und Edward 2: Biss zur Mittagsstunde
Kapitel 80.3 & Kapitel 81.1 - Bella und Edward 2: Biss zur Mittagsstunde
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78fe2178fc3a71eabe3504593eafd8f37479e9435c4abf054fed7855888ccfda. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEVP81139263.
Kapitel 81.2 & Kapitel 82.1 - Bella und Edward 2: Biss zur Mittagsstunde
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x904ce606eb91bc976e3bf3f94cf0906f1ef0f4007454177add64d0ec0232d220. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEVP81139264.
Kapitel 86.2 - Bella und Edward 2: Biss zur Mittagsstunde
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x167527ac8806c4e8d0d45590a65e606c9e3c2baaf10f910e117fc273875ce0aa. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEVP81139271.
Kapitel 88.2 & Kapitel 89.1 - Bella und Edward 2: Biss zur Mittagsstunde
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e9d6a942872dc40d6249359f161799b4b721384a5730d4f8a6aa0f5e2958ee2. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/DEVP81139275.
Kapitel 89.2 - Bella und Edward 2: Biss zur Mittagsstunde
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a8787cf25a939b3a4173adfb538732194534570f22fd4db219352f5d69c6082. Chain 2 (Bitcoin): anchored in block 957709 (2026-07-12T13:52:43Z), 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/DEVP81139276.