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 0xf3774303be111150eaf7608e93d384e285a454ca863af9d27b5435bdae2d9f27. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1987fcff-bc0e-4005-a296-14d331a03d79.json and https://artists.proofprofile.net/proofs/artist/1987fcff-bc0e-4005-a296-14d331a03d79.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Job's Not Over ('Til the Paper Work Is Done)
Tell Him I'm Holding On - E-The-Hot Sunday Dub
All Nite - John Morales Street Dub Remix
Where I'm Coming From - LTJ X-Perience Remix
Where I'm Coming From - Ltj Xperience Dub
In the Bag (Mixed & Compiled by Dr Packer)
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 0x648aa8fe8b70e4f3cf8b12033eb88d773e10f07c58db0a4ae9c1be999488760a. 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/ITG580800043.