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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1045c928c577eb4c70f45d725ff191122a9ee3ec8be493bcd467841b070f653c. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/68010327-1188-42be-855a-0f89b124dfdd.json and https://artists.proofprofile.net/proofs/artist/68010327-1188-42be-855a-0f89b124dfdd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Old Mc Donald Had A Farm - Trompet Version
Animals Went In Two Hoorah - Trompet Version
Head Shoulders Knees and Toes - Trompet Version
If You're Happy And You Know It - Trompet Version
One Two Buckle My Shoe - Trompet Version
Twinkle Twinkle Little Star - Trompet Version
Old Mc Donald Had A Farm - Saxophone Version
Animals Went In Two Hoorah - Saxophone Version
Head Shoulders Knees and Toes - Saxophone Version
If You're Happy And You Know It - Saxophone Version
Nakakarelaks na Musika para sa Mahimbing na Tulog
One Two Buckle My Shoe - Saxophone Version
Row, Row, Row Your Boat - Saxophone Version
The Wheels On The Bus - Saxophone Version
Twinkle Twinkle Little Star - Saxophone Version
Mga Tunog sa Nakakaantok Na Oras ng Pagtulog