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 0xf2352234d43ce4c8a68e6840853b9a60a039f1044ba95fca393af96a95a6d4b7. Chain 2 (Bitcoin): anchored in block 954500 (2026-06-20T04:47:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9da17022-b56b-4b93-81c9-b28d6bee3c85.json and https://artists.proofprofile.net/proofs/artist/9da17022-b56b-4b93-81c9-b28d6bee3c85.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Vogel Im Käfig - Attack on Titan Original Soundtrack (Piano)
Day One - Interstellar: Main Theme (Piano)
Sparkle - Your Name Original Soundtrack (Piano)
Lux Aeterna - Requiem For A Dream: Main Theme (Piano)
Sadness and Sorrow - Naruto Original Soundtrack (Piano)
Avatar's Love X Leaves From The Vine (Piano)
Oogway Ascends - Kung Fu Panda Original Soundtrack (Piano)
Krone - Guilty Crown Original Soundtrack
Mia & Sebastian's Theme - La La Land Original Soundtrack (Piano Version)
Mia & Sebastian's Theme - La La Land Original Soundtrack (Piano)
Mia & Seb's Theme - La La Land Original Soundtrack (Strings Version)