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 0x92a8867e799e4479026f0d42807f03ad2ae9f65225b66fb4352fc06c97d71007. Chain 2 (Bitcoin): anchored in block 954717 (2026-06-21T15:47:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f39699bc-26c0-4c6e-a74a-dab8ad35eb02.json and https://artists.proofprofile.net/proofs/artist/f39699bc-26c0-4c6e-a74a-dab8ad35eb02.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Why'd You Say You Love Me When You Don't?