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 0xe4799ff08452cd226310d98141f6f41e21d8fae2ad24bbec9d6cff95fce77631. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/03157546-b31c-4c0f-9225-bce600750c1d.json and https://artists.proofprofile.net/proofs/artist/03157546-b31c-4c0f-9225-bce600750c1d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Strange Love of Martha Ivers (Ost) [1946]
Golden Earrings (Original Soundtrack) [1947]
Strategic Air Command (Original Soundtrack) [1955]
The Rat Race (Original Soundtrack) [1960]
The Geisha Boy (Original Soundtrack) [1958]
The Buccaneer (Original Soundtrack) [1958]
I Married a Monster from Outer Space (Original Soundtrack) [1958]
The World of Suzie Wong (Original Soundtrack) [1960]
Conquest of Space (Original Soundtrack) [1955]
Wild Is the Wind (Original Soundtrack) [1957]
The War of the Worlds (Original Soundtrack) [1953]
Golden Earrings (Original Motion Picture Soundtrack)
Strategic Air Command (Original Motion Picture Soundtrack)
The Rat Race (Original Motion Picture Soundtrack)
The Geisha Boy (Original Motion Picture Soundtrack)
The Buccaneer (Original Motion Picture Soundtrack)