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 0x82de9d6602b795193de9dd78f91b63d9edb51f6f226094d41722643f573060bc. 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/8ff48aeb-edf0-4f12-be9e-c4f9cb691ce2.json and https://artists.proofprofile.net/proofs/artist/8ff48aeb-edf0-4f12-be9e-c4f9cb691ce2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Johnny Kongos and the G-Men: Over the Mountain, Across the Sea
Tulips for Toinette: The Best of Johnny Kongos and the G-Men
What Should We Do With the Drunken Sailor
You'll Never Walk Alone And Other Classics
The Best of South African Pop (1960-1990), Vol. 1
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 0x4cedf57634c72b462dbc70bda087f63c490c6d5316a95b1381254fe1ca6de95c. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/ZAC031200287.
The Best of South African Pop (1960-1990), Vol. 3