1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0x0d1f69ac41fa99a46f45b69ba8e45dcc91e3c9aa667f1c9aba853026c5e26fbd. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/66d8e3f8-c26a-42a7-8d18-a9d05882c035.json and https://artists.proofprofile.net/proofs/artist/66d8e3f8-c26a-42a7-8d18-a9d05882c035.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I Am Alcohol-Free (Listen to the Sound Once a Day Until You Are Healed)
Stop Smoking (Listen to the Sound Once a Day Until You Are Healed)
Dreamland Lullabies: Guitar Music for Baby Sleep