thumb|Official Vancouver Symphony Orchestra logo The Vancouver Symphony Orchestra (VSO) is a Canadian orchestra based in Vancouver, British Columbia. The VSO performs at the Orpheum, which has been th
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 0xfca65210438e88bb990d8b1c2e7798fea2f3f4d2e6195559ccd707bd91ec35fe. 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/ac91c03a-8b89-4d59-8f08-bfef6da1c5d4.json and https://artists.proofprofile.net/proofs/artist/ac91c03a-8b89-4d59-8f08-bfef6da1c5d4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Liszt: 2 Hungarian Rhapsodies / Dvorak: 2 Slavonic Rhapsodies / Enescu: 2 Romanian Rhapsodies