alt=A 3D simulation demonstrating collision with a ball knocking over some blocks.|thumb|A 3D simulation demonstrating a collision with a ball knocking over a bunch of blocks In physics, a collision i
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 0xc53a398d81d969c5664ed20f2e27cdd65395921e60eaa87dfff59631fc9ead8c. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ce85634d-5a0d-41d9-b45e-45d0ec86d8bc.json and https://artists.proofprofile.net/proofs/artist/ce85634d-5a0d-41d9-b45e-45d0ec86d8bc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).