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 0xf553020a700d197e31b7d5b4b290e07577fc454ff15279d38d73852e9b1257c0. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9b4f3851-9d57-43b1-b09e-679590b08452.json and https://artists.proofprofile.net/proofs/artist/9b4f3851-9d57-43b1-b09e-679590b08452.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Color, Rhythm And Magic (Favorite Songs From Disney Classics)
Inventing L.A.:The Chandlers and Their Times(Original Motion Picture Soundtrack)
The Quiet (from World War II In HD: The Air War) [Original Soundtrack]
J.S. Bach: The Well-Tempered Clavier, Book One Prelude in C Major, BWV 846
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61bd0ef0ae436ab8663da43e175973a10adb4b49c14220810001ab8d6eca5764. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH1207951.
Johnny Carson: King of Late Night (Original Film Soundtrack)
Stardust: The Bette Davis Story (Original Soundtrack)
Always at the Carlyle (Original Motion Picture Soundtrack)
カーライル ニューヨークが恋したホテル (Always at The Carlyle) [Original Soundtrack]
Alan Pakula: Going For Truth (Original Motion Picture Soundtrack)
Theme from Bob Mackie: Naked Illusion (Original Motion Picture Soundtrack)
Paddy Chayefsky: Collector of Words (Original Motion Picture Soundtrack)