400px|thumb|right|Bibbins Hall, home of Oberlin's TIMARA Laboratories. TIMARA (Technology in Music and Related Arts) is a program at the Oberlin Conservatory of Music notable for its importance in the
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 0x6498c4070f0c74b70feb6aed83a92bc8ad61a846de8e4f48b86b7f71a8a90dd3. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f7e0969d-b323-4e33-a8dd-9964e626a0f5.json and https://artists.proofprofile.net/proofs/artist/f7e0969d-b323-4e33-a8dd-9964e626a0f5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).