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 0xdc20d31db02533116924170382324aecf0223a48c35686b57ef45b5e0fe7fecc. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/839485ec-18bc-495e-9a0f-2ee5692aec70.json and https://artists.proofprofile.net/proofs/artist/839485ec-18bc-495e-9a0f-2ee5692aec70.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Empire of the Ants (Original Game Soundtrack)
L'attaque du monstre géant suceur de cerveaux de l'espace (Bande Originale du Film)
Les monstres au cinéma - version instrumentale
L'hypothèse de la reine rouge (Bande Originale du Film)
Tarim le Brave contre les mille et un effets (Bande Originale du Film)
Le Jour où les Huissiers Envahirent l’Univers (Bande Originale du Film)
Rien ne Peut t’Arrêter (Bande Originale du Film)
To Build a Fire (Original Motion Picture Soundtrack)
Safety (Original Motion Picture Soundtrack)
Astérix & Obélix: Le Combat des Chefs (Bande originale de la série Netflix)
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 0xac304b2d71460c360a0175b5a22d0ad37860da18f0d5ee5c3d619cd2a6f677c7. 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/QZ8BZ2513043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fda4866837f6e3a3c2eaa841483e473027e5edf80b6c701f44004de8bfad4b2. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZ8BZ2513050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bab25fd90a8bc72625d71f681657a9007d9519c9b797db77b3996f2ac30a06f. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZ8BZ2513066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fc8a2df7865f1a4a66dc4dece42dc475eaa534e84a5310ecab646f7674d2750. 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/QZ8BZ2513067.