1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3993f11eedfa03940623cce77f7d2c74b65c2c39c398b04749b0326725870a7c. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6d018e71-626d-4a5e-a48a-5c2adbdd15c7.json and https://artists.proofprofile.net/proofs/artist/6d018e71-626d-4a5e-a48a-5c2adbdd15c7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Forms 3 - Controls, Sources & Treatments (Forms Series 1-3)
Loop Series One - Buchla 100 (Loop Series 1-2)
Loop Series Two - Films (Layers) (Loop Series 1-2)