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 0xe3b81fe133e7faefb308fe3c2f59fe8a6820df7f0a2ea2e58b07cd29eade438a. 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/6b85779e-3356-49aa-8586-bb79583810af.json and https://artists.proofprofile.net/proofs/artist/6b85779e-3356-49aa-8586-bb79583810af.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tante Grusom (Original Theatre Soundtrack, Hålogaland Teater)
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 0x0fac1042c527b93098629f66e98cf9f616d86762fff764977c1c16728bd1548d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NOCTH1588020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c380b7dee57e1690dfd48e06f28828fad87891fb8058b104f5c4ec32bc16bc9. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NOCTH1588040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x623b4af65546246ba41cf283a315afb43b147c3d8984389cf6c12091aa3b380f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/NOCTH1588050.
Stille Inn (Original Theatre Soundtrack, Teater Innlandet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x002886ff90ac29f9f177b1f5458d78c85d41a178c72bbc43b9f6d58380e794e3. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NORIM2501090.