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 0x684f284657813c7d1bd8613ba81992b655dd45921a6baed05fd524fab09c0b3f. Chain 2 (Bitcoin): anchored in block 953605 (2026-06-14T07:39:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/12fe06ac-d8fe-4fae-b21c-57fc460a66fc.json and https://artists.proofprofile.net/proofs/artist/12fe06ac-d8fe-4fae-b21c-57fc460a66fc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Holst: The Planets - Rimsky-Korsakov: Sheherazade Suite - Handel: Music for the Royal Fireworks
Beethoven: Piano Sonata Nos. 8 & 14 - Mozart: Piano Concerto No. 21
Beethoven: Symphony Nos. 6 & 9 - Dvořák: Symphony No. 9
Classical Music You Know Thanks to the Movies
Musique Classique que vous connaissez grâce aux films