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 0x279632a273ac9d6a844aacb7c803350801c512cdedd0e993b31e489d1755b4a5. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/00a73e34-1e12-415a-a50c-b1d67b0618e1.json and https://artists.proofprofile.net/proofs/artist/00a73e34-1e12-415a-a50c-b1d67b0618e1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Wedding Anniversary ~El aniversario de boda~
The Rain of Secret Color -Hisoku no ame-
The Rain of Secret Color -Hisoku no ame- (alternative take)
Bonus Track秘色の雨- Hisoku no ame- - alternative take