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 0x4df7e26267533b6eee80ad8e72dd7a95a7025aec9e9954b152f3d0c2cbabce79. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4a0849b9-b71f-4aa2-b644-a29325a54351.json and https://artists.proofprofile.net/proofs/artist/4a0849b9-b71f-4aa2-b644-a29325a54351.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Spectacular Spider-Man Main Theme (8-Bit)
Powerpuff Girls Ending Credits Theme (8-Bit)
Dragon Ball Z Prelude To Conflict (8-Bit)
Spider-Man Unlimited Opening Theme (8-Bit)