thumb|Fluxus Manifesto, 1963, by George Maciunas thumb|Poster to Festum Fluxorum Fluxus 1963. Fluxus was an international, interdisciplinary community of artists, composers, designers, and poets durin
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 0xd49cc573240ed2d7d2402480690072794039265d960dfedf1f52cf2519418a09. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cfac2567-b4d0-4604-b0bd-ec7912d8e60d.json and https://artists.proofprofile.net/proofs/artist/cfac2567-b4d0-4604-b0bd-ec7912d8e60d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).