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 0xfb6a23223db6c0866037480d86acb5231e727d41f5ccb30b7ef317b1ef506bf4. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0ec1e98c-2dce-4d5c-9958-8a8a6f17feb3.json and https://artists.proofprofile.net/proofs/artist/0ec1e98c-2dce-4d5c-9958-8a8a6f17feb3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
To the Sons & Daughters of Woody Guthrie
They Don't Make Gravel Roads Like They Used To
Never Bring A Cup Of Water To A Gunfight
Show Me on the Doll Where the Music Touched You