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 0xa3005b0619ea72e5b0a07a5e7392cd96edd5d37bab3ebb39a3a2da462f6636a3. Chain 2 (Bitcoin): anchored in block 953713 (2026-06-15T00:33:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8154e33c-c2d0-4549-be42-6b7062f174a5.json and https://artists.proofprofile.net/proofs/artist/8154e33c-c2d0-4549-be42-6b7062f174a5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
バーニン☆ダーリン〜KOISEYO DANSHI〜 (Instrumental)