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 0x41b0fda57dd153b44a1e4696bc7408f2da74dbbc6aafbbe9f4dba0670458d749. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a6389464-b4a2-4414-93b9-1186252f5b27.json and https://artists.proofprofile.net/proofs/artist/a6389464-b4a2-4414-93b9-1186252f5b27.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Happy (Originally Performed by Pharrell Williams) [Piano Instrumental-Backing Version]
Human (Originally Performed by Christina Perri) [Piano Instrumental-Backing Version]
Let It Go (Originally Performed by Idina Menzel in "Frozen") [Piano Instrumental-Backing Version]
Roar (Originally Performed by Katy Perry) [Piano Instrumental-Backing Version]
Pompeii (Originally Performed by Bastille) [Piano Instrumental-Backing Version]
Story of My Life (Originally Performed by One Direction) [Piano Instrumental-Backing Version]
Demons (Originally Performed by Imagine Dragons) [Piano Instrumental-Backing Version]
You & I (Female Key) [Originally Performed by One Direction] [Piano Instrumental-Backing Version]
You & I (Originally Performed by One Direction) [Piano Instrumental-Backing Version]
Chandelier (Originally Performed by Sia) [Piano Instrumental-Backing Version]
Chandelier (Lower Key-Bb) [Originally Performed by Sia] [Piano Instrumental-Backing Version]
Chandelier - Piano Version (Karaoke Instrumental) [In the Style of Sia Furler]