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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x767b847bc2fe0d2ddbd0b8e4d66c14e76da77addc5e853383d7cec750c361c0c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d92a55bf-c676-4fc2-bd7c-cb9732a5ac94.json and https://artists.proofprofile.net/proofs/artist/d92a55bf-c676-4fc2-bd7c-cb9732a5ac94.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Voice Came out of the Box and Dropped into the Ocean