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 0x54d5c49247969255f08a9f21af72f6a804b91467566a36006f3da830b3f62bda. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/86db926e-918f-455e-a5c2-70dc6d368abd.json and https://artists.proofprofile.net/proofs/artist/86db926e-918f-455e-a5c2-70dc6d368abd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Orchestral Tools 2 - Minimal Negative Tones
Orchestral Tools 3 - Minimal Positive Tones
Orchestral Tools 6 - Minimal Positive Patterns