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 0x1c3135ab8cd01d0c403433e76d0f0a7f5c7316da7657ab6e34f50bf0bd9e516b. Chain 2 (Bitcoin): anchored in block 953899 (2026-06-16T06:37:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/125a83e2-1f07-4ced-9025-ce6c8d69f030.json and https://artists.proofprofile.net/proofs/artist/125a83e2-1f07-4ced-9025-ce6c8d69f030.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Klassisk Musikk for Spedbarn og Barn (Piano)
Klassisk Musikk for Barn Maestro Mozy (Harpe)
P. Tchaikovsky - Album For The Young (After Schumann) [Piano]
A. Khachaturian - Album for Children (Piano)
Ma Mère L'Oye - 1. Pavane de la Belle au bois dormant
Liebestraum (Love's Dream), Nr. 3, Thema (8va)
Forellenquintett (Quintet of The Trout), Theme from the 4th Movement