thumb|400px|right|The Buffalo Philharmonic Orchestra and Chorus in Kleinhans Music Hall The Buffalo Philharmonic Orchestra is an American symphony orchestra located in Buffalo, New York led by Music
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 0xe3b34668802986c29f8e916016d57e60fc4176f81c98d6fd9796a686682c6bca. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9ae779f9-974d-4cb5-afdb-6f4a6aadbb87.json and https://artists.proofprofile.net/proofs/artist/9ae779f9-974d-4cb5-afdb-6f4a6aadbb87.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Griffes: Pleasure Dome of Kubla Khan / The White Peacock
Bartók: Kossuth, 2 Portraits & Orchestral Suite No. 1
Corigliano: Violin Concerto "The Red Violin" & Phantasmagoria
Symphony No. 4, Op. 54 "Poème de l'Extase"
Scriabin: Symphony No. 4, Op. 54 "Poème de l'Extase" & Symphony No. 2 in C Minor, Op. 29
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 0x7347792b2a05bbacebae62d916368296c78fcb02d73a82ba0c58fb01b7387243. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HKI192219701.