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 0x23bb2f9bf9174916e6670f13150a07af8843067edd5328ef2da6ab8958b756c9. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c0401417-0af6-4a52-90c4-00a95712725b.json and https://artists.proofprofile.net/proofs/artist/c0401417-0af6-4a52-90c4-00a95712725b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tanti Auguri a Te – Buon Compleanno! (Happy Birthday to You) [Italian Happy Birthday Song – Classic Original Version]
Lagu Selamat Ulang Tahun (Indonesian Happy Birthday Song) [Lagu Ulang Tahun Anak]
FLUTE: Happy Birthday to You – Relaxing Flute Instrumental (Traditional Original Version)
Happy Birthday Caribbean Style – Steel Drums (Tropical Steel Pan Music)
Cumpleaños Feliz (Spanish Happy Birthday Song) [Versión Latina] [Instrumental]
Happy Birthday (Classic Birthday Song Instrumental Music) [Violin & Piano]
SOFT HARP: Happy Birthday to You Harp Instrumental Music (Classic Original Version)
Sana Helwa Ya Gamil (Arabic Happy Birthday Song) [Sana Helwa Ya Gameel]
Joyeux Anniversaire (Chanson d’Anniversaire Française) [French Happy Birthday Song]
Zum Geburtstag viel Glück (Deutsches Geburtstagslied) [German Happy Birthday Song]
Happy Birthday Song on Harp (Instrumental Music – Cumpleaños Feliz, Zum Geburtstag viel Glück, Tanti Auguri a Te, Joyeux Anniversaire)